23 jobs found

About Caxton Associates: Caxton Associates, founded in 1983, is a global trading and investment firm with offices in New York, London, Bengaluru, Monaco, Singapore and Dubai. Caxton Associates' primary business is to manage client and proprietary capital through a suite of products designed to fit the specific needs of investors. Employing a multi portfolio manager framework, Caxton excels in discretionary global macro investing, leveraging its diversified expertise across asset classes and markets. About the role: We are seeking a Database Engineer to join our London based technology team. This is a hands on role focused on design, development, and optimisation of the firm's core data platforms. You will play a key role in shaping and scaling the firm's data platform, directly supporting trading and investment decision making. The role requires strong technical expertise, attention to data quality, and the ability to operate in a fast paced, business critical environment. Collaborate with Technology, Quant, and Risk teams to deliver data solutions for reporting and analytics Design and implement scalable database schemas, tables, indexes, and stored procedures Develop and maintain Python ETL pipelines for trade, position, and pricing data Build and support reporting and visualization solutions using Tableau Ensure data integrity

About Caxton Associates: Caxton Associates, founded in 1983, is a global trading and investment firm with offices in New York, London, Bengaluru, Monaco, Singapore and Dubai. Caxton Associates' primary business is to manage client and proprietary capital through a suite of products designed to fit the specific needs of investors. Employing a multi portfolio manager framework, Caxton excels in discretionary global macro investing, leveraging its diversified expertise across asset classes and markets. About the role: We are seeking a Database Engineer to join our London based technology team. This is a hands on role focused on design, development, and optimisation of the firm's core data platforms. You will play a key role in shaping and scaling the firm's data platform, directly supporting trading and investment decision making. The role requires strong technical expertise, attention to data quality, and the ability to operate in a fast paced, business critical environment. Collaborate with Technology, Quant, and Risk teams to deliver data solutions for reporting and analytics Design and implement scalable database schemas, tables, indexes, and stored procedures Develop and maintain Python ETL pipelines for trade, position, and pricing data Build and support reporting and visualization solutions using Tableau Ensure data integrity

For additional information, please review . Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Engineer the future of global finance. At Citi, our Tech team doesn't just support finance - we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.The Lead Java Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities. Responsibilities: Lead delivery of Real Time and On Demand Risk enhancements for the Credit Business by partnering directly with London based trading, MQA, Market Risk, and technology teams. Own the full development lifecycle: architecture, design, implementation, automated testing strategies, release execution, and ongoing production support. Drive alignment of RT/OD workflows with EOD Risk strategy, ensuring functional parity, reconciliation, and controlled cutover. Lead adoption and build out of RT/OD capabilities on strategic risk platform, including integration of new analytics, workflows, and risk datasets. Deliver significant performance improvements through optimized risk calculation strategies. Guide the migration of compute workloads to AWS, implementing best practices for scalability, throughput, resiliency, and cost efficiency. Collaborate actively with NAM and APAC teams in a follow the sun model to improve delivery velocity, reduce operational risk, and ensure rapid triage of production incidents. Provide user-facing updates, demos, documentation, and education to promote adoption and ensure successful rollout of new capabilities. Lead root cause analysis on production issues, drive long term stability improvements, and strengthen monitoring and observability across the platform. Recommended Experience: Strong experience in Core Java, J2EE, Spring Framework Exposure to Python scripting and data analysis Experience in fast moving Capital Markets Front Office technology environment with experience in Fixed Income products Working knowledge of Front Office Risk calculations, especially for Credit products Experience in building highly scalable and distributed applications using Microservices, APIs, and Container technologies such as Docker, Kubernetes, OpenShift, etc. Strong expertise in messaging technologies such as Kafka, JMS, gRPC etc Proficient in latency measurement and performance optimization of Java based platforms with focus on JVM tuning Experience with observability stacks like ELK, Prometheus, Grafana, Kiali, Jaeger etc. Sound knowledge for persistence technologies such as relational databases, NoSQL databases, off heap storages and distributed caches Hands-on knowledge of Linux / Unix Experience working with senior Quants and Technology Managers Good verbal and written communication Education: Bachelor's degree/University degree or equivalent experience Master's degree preferredThis job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. What we'll provide you By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as: 27 days annual leave (plus bank holidays) A discretional annual performance related bonus Private Medical Care & Life Insurance Employee Assistance Program Pension Plan Paid Parental Leave Special discounts for employees, family, and friends Access to an array of learning and development resourcesAlongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive. Job Family Group: Technology Job Family: Applications Development Time Type: Full time Most Relevant Skills Please see the requirements listed above. Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review . View Citi's and the poster.

Trust unlocks our greatest potential. For decades, the clearing of payments remained unchanged and unchallenged. We asked, what if there was a better way? What if we could make banking infrastructure faster, safer, more reliable, and easier to access for all? Here is where you can think radically and responsibly to find the best solution. What happens when you know you're inherently trusted? Trust creates safety. Safety encourages you to be brave, to challenge, to fail, to try new things and to execute. At ClearBank everything revolves around trust. We're not expected to earn it, but we are expected not to break it. We're trusted to own it. To solve issues in the moment. To know a good risk when we see one, and the judgement to know that 'can' doesn't always mean you 'should'. What you can expect: ClearBank is a place where you can do things differently and challenge the status quo. We will give you a high level of autonomy and transparency, and we trust you to make the right decisions for the bank. If that excites you, how about joining our Financial Crimes Operations Models Management team as a Blockchain & Fraud Models Analyst? Reporting to the Models Management Senior Manager, you will specialise in developing and maintaining the monitoring controls of blockchain-based products and screening fraudulent payments. Your role includes: Design, develop, tune and maintain rules and models for blockchain transaction monitoring and fraudulent payment screening, ensuring strong risk coverage and operational efficiency, to support new products and clients Analyse blockchain and payment transaction behaviour to identify emerging financial crime typologies, including cross chain activity, high risk wallet exposure and transaction velocity risks Optimise monitoring performance by working closely with data scientists, engineers and compliance teams, enhancing rule logic, thresholds and outputs Own the ongoing effectiveness monitoring of rules and models, including rule health metrics, dashboards and regular performance reporting Conduct root cause analysis on monitoring incidents and model performance issues, recommending and implementing data driven improvements Partner with 1st and 2nd Line of Defence teams and external vendors to ensure monitoring controls are well calibrated, documented and aligned to risk appetite Contribute to strategic initiatives that enhance the organisation's financial crime analytics capabilities, particularly across blockchain and innovative payment products What you'll bring: Strong subject matter expertise in fraud and blockchain monitoring, including rules, typologies, detection approaches and vendor tooling A solid understanding of blockchain use cases and risks, such as digital asset trading, stablecoins, mixers and evasion techniques Experience designing and tuning transaction monitoring or fraud rules to balance effectiveness and efficiency Knowledge of banking payment products and their fraud risk profiles (e.g. transfers, cards, mobile and app based payments) Strong analytical capability, with high attention to detail and the ability to interpret data to distinguish normal versus abnormal behaviour Confidence communicating complex monitoring approaches and findings to non technical stakeholders across technology and business teams A proactive, curious mindset with the ability to identify data quality issues and continuously improve financial crime controls Regretfully we are not able to sponsor applicants for immigration purposes at the current time. What makes a great ClearBank team member? Does this sound like you? You focus on solutions and positive outcomes, thinking radically and responsibly to find the best result for our customers, your colleagues and the bank; You actively seek feedback from others to drive your growth and development, always assuming positive intent from others and develop strong, trusting relationships you're your colleagues and customers: you really, genuinely care; You always strive for the highest quality, but you know that done is better than perfect; you welcome a challenge knowing that they learn as you go and iterate; 'I' before 'we', isn't in your vocabulary If this sounds like you then we encourage you to dust off that CV and apply! What we offer in return: We're flexible - We support a culture of flexibility which allows our employees to achieve a strong work-life balance. Offices - Work in a way that works for you - whether that's in the London office, at home, or hybrid. Holiday - 27 days of annual leave per year, plus bank holidays. Holiday buy/sell - Buy or sell up to five days of annual leave each year and shape your year around what matters most. Work abroad - You have the flexibility to work outside of the UK for up to 30 days in a rolling 12-month period. Socials - Regular social events open to all. Holiday swap - Option to swap your bank holidays to any other day of your choice. Wellbeing - 24/7 employee assistance programme including mental health support, life assurance and income protection. Bigger than ClearBank - Take a couple of days per year to do something that matters to you. Healthy living - Private healthcare and discounted dental cover, with employee perks and discounts. Family - Enhanced family-friendly leave. Personal development - We offer personal development budgets, opportunities to take part in role related training and unlimited LinkedIn Learning. And not forgetting the biggest benefit of all. The opportunity to be part of an incredible team that's building a tech bank fit for the future. A little bit more about us! ClearBank is Where You Can belong: At ClearBank we think about Diversity, Equity and Inclusion (DE&I) a lot. Not because we think we should. But because we know we should - how else can we build a happy workforce and be successful as a business. We're committed to making sure our teams reflect society. And we put energy and effort into making this a place where everyone feels at home, where they're given the trust and encouragement to do their very best work. Here are some of the things we're most proud of: 42% of our senior management roles are held by women Our enhanced family leave policies Launching our partnership with Code First Girls Increasing awareness of neurodiversity in the workplace through our partnership with the Inclusive Group Our hiring process and what you can expect: Application: a member of our talent acquisition team will review your application against the key requirements for the role and let you know within two weeks whether you're moving forward to the next stage; Screening: You'll spend 30-45 minutes speaking to one of our recruiters learning more about the role and ClearBank, and we'll get it know more about you, your experience and how your skills align with the role (this will be via phone or Teams video call). You can expect to hear back from us within seven days following this meeting (if things are taking longer than expected, we'll let you know that too); First Interview: You'll spend one hour with a member of our hiring team focusing on your skills, competencies and your ways of working at the same time we'll give you time to ask more questions about the role, the team and learn more about the ClearBank culture. This will be via Teams. Second Interview: This will be a competency-based interview with one or more members of our team. Final Stage: You will have a final meeting with the Head of Department. This will be around 45-60 minutes. Offer: Congratulations! Get ready to transform banking forever! Our commitment to you as a candidate: We will always try our best to get back to you within seven days of your interview whether you've been successful or not and provide you with feedback. Sometimes things take a little longer, so we may not have a decision to share but we will get it touch to let you know we need a little more time. We're unable to provide specific individual feedback at the application or screening stage but know that your application was reviewed and considered carefully. We wish you the best of luck with your application and maybe we'll be celebrating your new role at ClearBank soon! Equal Opportunities ClearBank is committed to ensuring equal opportunities throughout every stage of the recruitment process. ClearBank recognises that diversity is vital to the long term success of the business in the communities and markets in which it operates. ClearBank is also a firm believer that an inclusive culture fosters greater employee engagement and collaboration. ClearBank strives for diversity and inclusion of all forms, including (but not limited to): gender, age, educational and professional background, disability, gender reassignment, marital or civil partner status, pregnancy or maternity, race, colour, nationality, ethnic or national origin, religion or belief and sexual orientation. As part of the Company's commitment to equal employment opportunity, we provide reasonable adjustments, to candidates during the recruitment process, including to individuals with disabilities. We want to create a safe space that welcomes everyone so please let us know how we can accommodate you . click apply for full job details

Fuse Energy is a forward-thinking renewable energy startup on a mission to deliver a terawatt of renewable energy - fast. We're combining first-principles thinking with cutting-edge technology to build a radically better energy system. We raised $170M from top-tier investors including Multicoin, Balderton, Lakestar, Accel, Creandum, Lowercarbon, Ribbit, Box Group and strategic angels like Nico Rosberg, the Co-Founder of Solana and GPs behind Meta, Revolut, Spotify, Uber and more. We're creating a fully integrated energy company: from developing solar, wind and hydrogen projects to real-time power trading and distributed energy installations. By selling directly to consumers, we cut out the middleman, lower costs and pass on savings to customers. But we're not stopping there. We're also building the Energy Network: a decentralised platform of smart devices that rewards users in Energy Dollars for electrifying their homes, shifting usage to off-peak hours, and helping balance the grid. This network strengthens grid stability - a critical foundation for scaling AI data centers and other energy-intensive industries. Responsibilities Develop and implement quantitative models to support hedging strategies for retail energy supply Analyze market data to optimize the performance of physical assets such as solar and wind farms Conduct statistical and scenario-based modeling to inform trading and risk management decisions Monitor power markets, pricing trends, and regulatory developments to identify risks and opportunities Collaborate with engineering and operations teams to integrate models into day-to-day decision-making Qualifications 1+ years of experience in quantitative modeling, data analysis, or a related role in energy, trading, or analytics Strong proficiency in Python, with experience using libraries for data analysis, modeling, and visualization Solid understanding of statistical modeling, optimization, and analysis techniques Experience working with time series or market data, preferably in energy or commodities markets Strong problem-solving skills and the ability to translate complex data into actionable insights Benefits Competitive salary and an equity sign-on bonus Biannual bonus scheme Fully expensed tech to match your needs Paid annual leave Breakfast and dinner allowance for office based employees

About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across four core services: clearing, agency and execution, market making, and hedging and investment solutions. It has a leading franchise in many major metals, energy and agricultural products, with access to 60 exchanges. The group provides access to the world's major commodity markets, covering a broad range of clients that include some of the largest commodity producers, consumers and traders, banks, hedge funds and asset managers. With more than 40 offices worldwide, the group has over 2,300 employees across Europe, Asia and the Americas. For more information visit Job Reference: VN2522 Department description Marex has unique access across markets with significant share globally both on and off exchange. The depth of knowledge amongst its teams and divisions provides its customers with clear advantage, and its technology led service provides access to all major exchanges, order flow management via screen, voice and DMA, plus award winning data, insights and analytics. The Market Making division within Marex encompasses asset classes where Marex acts as a principal risk taker to provide pricing and liquidity to our clients, including but not limited to Base Metals, Precious Metals, Agricultural Products, Energy, US Power, and Environmental contracts. The Technology Department delivers differentiation, scalability and security for the business. Technology provides digital tools, software services and infrastructure globally to all business groups. Software development and support teams work in agile 'streams' aligned to specific business areas. Our other teams work enterprise wide to provide critical services including our global service desk, network and system infrastructure, IT operations, security, enterprise architecture and design. Role Summary Market Making at Marex is a critical and growing business, operating across multiple asset classes and geographies. The Market Making businesses have a high degree of complexity, operating with multiple workflows and booking systems, across different Marex entities and in different regions. The business uses several different technologies, some built in house, others vendor driven. In this role as a Market Making Senior Software Developer, you will work closely with both business stakeholders and engineering teams to identify, design, and deliver products that strengthen our market making capabilities and improve operational efficiency across the business. Your role is critical to the future success of the Market Making business as we seek to drive technology led growth. Responsibilities Design, develop and maintain high quality for internal and external facing applications. Build scalable, resilient and high performance services that support multiple business streams across Marex. Collaborate closely with product owners, architects and other engineering teams to translate business requirements into robust technical solutions. Contribute to architectural design discussions and help shape platform standards, patterns and best practices. Ensure solutions are secure, observable and aligned with enterprise governance and regulatory requirements. Support the continuous improvement of CI/CD pipelines, automated testing and DevOps practices. Participate actively in team discussions, technical brainstorming sessions and knowledge sharing. Adapt quickly to changing priorities and evolving business demands in a fast paced environment. Provide support and troubleshooting for production systems where required, ensuring high availability and reliability. Contribute to documentation and maintain clear technical artefacts to support long term platform sustainability. Promote a collaborative, inclusive and high performing team culture. All staff: Ensure compliance with the company's regulatory requirements under the FCA. Adhere to the operational risk framework for your role ensuring that all regulatory or company determined parameters are complied with. Role model for demonstrating highest level standards of integrity and conduct and reflecting Company Values. At all times comply with the FCA's Code of Conduct. Ensure that you are fully aware of and adhere to internal policies that relate to you, your role or any other activities for which you have any level of responsibility. Report any breaches of policy to Compliance and/ or your supervisor as required. Escalate risk events immediately. Provide input to risk management processes, as required. Competencies, Skills and Experience A collaborative team player, approachable, self efficient and influences a positive work environment. Demonstrates curiosity. Resilient in a challenging, fast paced environment. Ability to take a high level of responsibility in a fast pace and high volume environment. Excels at building relationships, networking and influencing others. Strategic collaborator with insight and agility, able to anticipate future challenges, ensuring operational effectiveness. Essential Skills and Experience Experience in at least one of JavaScript, Typescript, React, NodeJS, GraphQL, Docker. Experience of NoSQL or RDMS databases. Knowledge of modern CI/CD and DevOps practices. Experience working with AWS cloud services (e.g. ECS/EKS, Lambda, S3, RDS, API Gateway). Knowledge of BDD/TDD. Experience working in Agile / Scrum delivery environments. Methodical approach to software architecture and design and experience employing the right design choices for a given project. Strong verbal and written communication skills. Desirable Experience in C# .NET. Extended knowledge across multiple asset classes. Trade Lifecycle knowledge. Pre trade, Trade, settlement/clearing, Risk. Full front to back. Experience with trading or pricing platforms. Microsoft Technologies, Cloud services, hosting and deployment. Experience implementing observability tooling (logging, monitoring, tracing). Experience working in a regulated environment and knowledge of the risk and compliance requirements associated with this. Conduct Rules You must: Act with integrity Act with due skill, care and diligence Be open and cooperative with the FCA, the PRA and other regulators Pay due regard to the interests of customers and treat them fairly Observe proper standard of market conduct Act to deliver good outcomes for retail customers Company Values Acting as a role model for the values of the Company: Respect - Clients are at the heart of our business, with superior execution and superb client service the foundation of the firm. We respect our clients and always treat them fairly. Integrity- Doing business the right way is the only way. We hold ourselves to a high ethical standard in everything we do - our clients expect this and we demand it of ourselves. Collaborative- We work in teams - open and direct communication and the willingness to work hard and collaboratively are the basis for effective teamwork. Working well with others is necessary for us to succeed at what we do. Developing our People- Our people are the basis of our competitive advantage. We look to "grow our own" and make Marex the place ambitious, hardworking, talented people choose to build their careers. Adaptable and Nimble- Our size and flexibility is an advantage. We are big enough to support our client's various needs, and adaptable and nimble enough to respond quickly to changing conditions or requirements. A non bureaucratic, but well controlled environment fosters initiative as well as employee satisfaction. Marex is fully committed to being an inclusive employer and providing an inclusive and accessible recruitment process for all. We will provide reasonable adjustments to remove any disadvantage to you being considered for this role. We value the differences that a diverse workforce brings to the company. We welcome applications from candidates returning to the workforce. Also, Marex is committed to avoiding circumstances in which the appearance or possibility of conflicts of interest may exist within the hiring process. If you would like to receive any information in a different way or would like us to do anything differently to help you, please include it in your application.

Software Developer - Enterprise Technology Node JS / Typescript London, GB Full-Time Information Technology About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across four core services: clearing, agency and execution, market making, and hedging and investment solutions. It has a leading franchise in many major metals, energy and agricultural products, with access to 60 exchanges. The group provides access to the world's major commodity markets, covering a broad range of clients that include some of the largest commodity producers, consumers and traders, banks, hedge funds and asset managers. With more than 40 offices worldwide, the group has over 3,000 employees across Europe, Asia and the Americas. Marex has unique access across markets with significant share globally both on and off exchange. The depth of knowledge amongst its teams and divisions provides its customers with clear advantages, and its technology led service provides access to all major exchanges, order flow management via screen, voice and DMA, plus award winning data, insights and analytics. The Enterprise Technology team sits at the centre of Marex's technology landscape, delivering a cross business platform that enables our trading and business streams to innovate and go to market at pace. We provide shared capabilities including API gateways, centralised APIs, real time data streaming, connectivity solutions and emerging AI driven services. By building scalable, resilient and reusable platform components, the team reduces duplication, accelerates product delivery and ensures consistent standards across the organisation. Engine Room is a core part of this strategy, forming the foundation upon which next generation digital services are built. Marex recognises the need to provide digital services to give clients the best possible experience. As such, the technology team at Marex is playing an increasingly important role in the evolution of the firm and enabling business growth and new products and services. Role Summary Join the Enterprise team working on Engine Room, one of Marex's most strategic technology initiatives. As a Full Stack Developer, you'll help build and evolve a modern, enterprise grade platform at the core of the business. We're growing quickly and need energetic, flexible thinkers who can respond to changing demands, work collaboratively, and bring ideas to the table. If you enjoy solving complex problems in a fast moving environment and want to help shape technology that truly matters, this is the role for you. Responsibilities Role specific Design, develop and maintain high-quality NodeJS/Typescript solutions within the Engine Room platform. Contribute to the development of shared enterprise capabilities including API gateways,centralised APIs, real time data streaming, connectivity frameworks and AI enabled services. Build scalable, resilient and high-performance services that support multiple business streams across Marex. Collaborate closely with product owners, architects and other engineering teams to translate business requirements into robust technical solutions. Contribute to architectural design discussions and help shape platform standards, patterns and best practices. Ensure solutions are secure, observable and aligned with enterprise governance and regulatory requirements. Support the continuous improvement of CI/CD pipelines, automated testing and DevOps practices. Participate actively in team discussions, technical brainstorming sessions and knowledge sharing. Adapt quickly to changing priorities and evolving business demands in a fast paced environment. Provide support and troubleshooting for production systems where required, ensuring high availability and reliability. Contribute to documentation and maintain clear technical artefacts to support long term platform sustainability. Promote a collaborative, inclusive and high performing team culture. All staff Ensure compliance with the company's regulatory requirements under the FCA. Adhere to the operational risk framework for your role ensuring that all regulatory or company determined parameters are complied with. Role model for demonstrating highest level standards of integrity and conduct and reflecting Company Values. At all times comply with the FCA's Code of Conduct. Ensure that you are fully aware of and adhere to internal policies that relate to you, your role or any other activities for which you have any level of responsibility. Report any breaches of policy to Compliance and/ or your supervisor as required. Escalate risk events immediately. Provide input to risk management processes, as required. Competencies, Skills, Experience & Qualifications A collaborative team player, approachable, self efficient and influences a positive work Environment. Resilient in a challenging, fast paced environment. Ability to take a high level of responsibility in a fast pace and high-volume environment. Excels at building relationships, networking and influencing others. Strategic collaborator with insight and agility, able to anticipate future challenges, ensuring operational effectiveness. Skills and Experience: Essential Experience building RESTful APIs and microservices in enterprise environments. Good working knowledge of React and modern front end development principles. Experience working with AWS cloud services (e.g. ECS/EKS, Lambda, S3, RDS, API Gateway) Experience with event driven architectures, ideally using Kafka. Understanding of CI/CD pipelines, automated testing and DevOps practices. Experience with Infrastructure as Code, ideally Terraform. Strong understanding of software design principles (SOLID, clean architecture, domain driven design concepts). Experience working in Agile/Scrum delivery environments. Working knowledge of Python or C#. Experience building or contributing to enterprise platform or shared services environments. Exposure to API gateway technologies and distributed systems design. Experience implementing observability tooling (logging, monitoring, tracing). Financial services or capital markets experience (advantageous but not essential). Experience using CDM as a data model (advantageous but not essential). Conduct Rules You must: Act with integrity Act with due skill, care and diligence Be open and cooperative with the FCA, the PRA and other regulators Pay due regard to the interests of customers and treat them fairly Observe proper standard of market conduct Company Values Respect - Clients are at the heart of our business, with superior execution and superb client service the foundation of the firm. We respect our clients and always treat them fairly. Integrity - Doing business the right way is the only way. We hold ourselves to a high ethical standard in everything we do - our clients expect this and we demand it of ourselves. Collaborative - We work in teams - open and direct communication and the willingness to work hard and collaboratively are the basis for effective teamwork. Working well with others is necessary for us to succeed at what we do. Developing our People - Our people are the basis of our competitive advantage. We look to "grow our own" and make Marex the place ambitious, hardworking, talented people choose to build their careers. Adaptable and Nimble - Our size and flexibility is an advantage. We are big enough to support our client's various needs, and adaptable and nimble enough to respond quickly to changing conditions or requirements. A non bureaucratic, but well controlled environment fosters initiative as well as employee satisfaction. Marex is fully committed to being an inclusive employer and providing an inclusive and accessible recruitment process for all. We will provide reasonable adjustments to remove any disadvantage to you being considered for this role. We value the differences that a diverse workforce brings to the company. We welcome applications from candidates returning to the workforce. Also, Marex is committed to avoiding circumstances in which the appearance or possibility of conflicts of interest may exist within the hiring process. If you would like to receive any information in a different way or would like us to do anything differently to help you, please include it in your application.

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Engineer the future of global finance. At Citi, our Tech team doesn't just support finance - we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. The Lead Java Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities. Responsibilities Lead delivery of Real Time and On Demand Risk enhancements for the Credit Business by partnering directly with London based trading, MQA, Market Risk, and technology teams. Own the full development lifecycle: architecture, design, implementation, automated testing strategies, release execution, and ongoing production support. Drive alignment of RT/OD workflows with EOD Risk strategy, ensuring functional parity, reconciliation, and controlled cutover. Lead adoption and build out of RT/OD capabilities on strategic risk platform, including integration of new analytics, workflows, and risk datasets. Deliver significant performance improvements through optimized risk calculation strategies. Guide the migration of compute workloads to AWS, implementing best practices for scalability, throughput, resiliency, and cost efficiency. Collaborate actively with NAM and APAC teams in a follow the sun model to improve delivery velocity, reduce operational risk, and ensure rapid triage of production incidents. Provide user facing updates, demos, documentation, and education to promote adoption and ensure successful rollout of new capabilities. Lead root cause analysis on production issues, drive long term stability improvements, and strengthen monitoring and observability across the platform. Recommended Experience Strong experience in Core Java, J2EE, Spring Framework Exposure to Python scripting and data analysis Experience in fast moving Capital Markets Front Office technology environment with experience in Fixed Income products Working knowledge of Front Office Risk calculations, especially for Credit products Experience in building highly scalable and distributed applications using Microservices, APIs, and Container technologies such as Docker, Kubernetes, OpenShift, etc. Strong expertise in messaging technologies such as Kafka, JMS, gRPC etc Proficient in latency measurement and performance optimization of Java based platforms with focus on JVM tuning Experience with observability stacks like ELK, Prometheus, Grafana, Kiali, Jaeger etc. Sound knowledge for persistence technologies such as relational databases, NoSQL databases, off heap storages and distributed caches Hands on knowledge of Linux / Unix Experience working with senior Quants and Technology Managers Good verbal and written communication Education Bachelor's degree/University degree or equivalent experience Master's degree preferred What we'll provide you By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as: 27 days annual leave (plus bank holidays) Discretional annual performance related bonus Private Medical Care & Life Insurance Employee Assistance Program Pension Plan Paid Parental Leave Special discounts for employees, family, and friends Access to an array of learning and development resources Visit ourGlobal Benefitspage to learn more. Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive. Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi. View Citi's EEO Policy Statement and the Know Your Rights poster.

Provn are proud to be partnered with a leading systematic hedge fund as they look to hire a Software Engineer to join their Risk Technology team in London. Our client is a highly advanced, data-driven investment firm that places technology at the core of its trading and risk management capabilities. They are continuing to invest in a centralised analytics platform that supports risk, performance, and execution insights across the full trading lifecycle. This platform processes large volumes of trading and market data to deliver timely, accurate analytics to front office users. The team works closely with portfolio managers, traders, and quantitative teams to build systems that directly inform investment decisions. This is a high-impact role suited to engineers who enjoy working on complex, data-intensive systems, combining strong software engineering with analytical problem-solving in a front office-aligned environment. Key Responsibilities: Design and build core components of a risk and analytics platform used by front office teams for decision-making Build scalable data pipelines supporting both real-time and scheduled analytics workloads (event-driven and batch processing) Develop and optimise services in Java and Python for high-performance data processing and analytics Work with large-scale datasets across relational and analytical data platforms Design systems capable of ingesting and processing trading, market, and reference data in near real-time Partner closely with front office and risk stakeholders to translate analytical requirements into robust technical solutions Contribute to the evolution of system architecture, including distributed systems, messaging patterns, and microservices-based designs Support the migration of legacy systems into modern, cloud-based and containerised environments Take ownership of key services, including monitoring, performance optimisation, and reliability improvements Implement data quality, validation, and reconciliation controls across analytics workflows Contribute to APIs, internal tools, and data interfaces used for analytics consumption Role Requirements: Strong experience with Java (ideally within real-time or high-performance systems) Strong Python experience for data processing and analytics workflows Experience building distributed or data-intensive systems Event-driven architectures and messaging patterns Data modelling, ingestion, and large-scale data processing Real-time and batch processing systems Strong SQL and database experience working with large datasets Experience working in Linux/Unix environments Demonstrated ability to improve systems beyond standard development tasks (e.g. optimisation, redesign, platform improvements) Preferred Experience: Experience within cloud-based infrastructure and containerised environments Exposure to streaming or messaging technologies Experience within trading, risk, or analytics-focused environments Background in asset management, hedge funds, or investment banking Strong analytical or mathematical mindset Why Apply: Opportunity to build business-critical analytics systems within a leading systematic hedge fund High visibility role with direct impact on trading and investment decisions Exposure to modern engineering practices, including real-time data processing and scalable architectures Strong balance of engineering depth, ownership, and front office engagement Collaborative, high-calibre environment focused on performance and innovation Benefits: Incredibly competitive package Private medical insurance Enhanced parental leave

A leading systematic hedge fund in Greater London is seeking a Software Engineer to join its Risk Technology team. This role focuses on developing data-intensive systems and analytics platforms that inform critical trading decisions. Candidates should have strong experience in Java and Python, along with a solid background in data processing, real-time systems, and a collaborative environment. The position offers an opportunity to impact business-critical analytics with a competitive package and great benefits.

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview Engineer the future of global finance. At Citi, our Tech team doesn't just support finance - we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. The Lead Java Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities. Responsibilities: Lead delivery of Real Time and On Demand Risk enhancements for the Credit Business by partnering directly with London based trading, MQA, Market Risk, and technology teams. Own the full development lifecycle: architecture, design, implementation, automated testing strategies, release execution, and ongoing production support. Drive alignment of RT/OD workflows with EOD Risk strategy, ensuring functional parity, reconciliation, and controlled cutover. Lead adoption and build out of RT/OD capabilities on strategic risk platform, including integration of new analytics, workflows, and risk datasets. Deliver significant performance improvements through optimized risk calculation strategies. Guide the migration of compute workloads to AWS, implementing best practices for scalability, throughput, resiliency, and cost efficiency. Collaborate actively with NAM and APAC teams in a follow the sun model to improve delivery velocity, reduce operational risk, and ensure rapid triage of production incidents. Provide user-facing updates, demos, documentation, and education to promote adoption and ensure successful rollout of new capabilities. Lead root cause analysis on production issues, drive long term stability improvements, and strengthen monitoring and observability across the platform. Recommended Experience: Strong experience in Core Java, J2EE, Spring Framework Exposure to Python scripting and data analysis Experience in fast moving Capital Markets Front Office technology environment with experience in Fixed Income products Working knowledge of Front Office Risk calculations, especially for Credit products Experience in building highly scalable and distributed applications using Microservices, APIs, and Container technologies such as Docker, Kubernetes, OpenShift, etc. Strong expertise in messaging technologies such as Kafka, JMS, gRPC etc Proficient in latency measurement and performance optimization of Java based platforms with focus on JVM tuning Experience with observability stacks like ELK, Prometheus, Grafana, Kiali, Jaeger etc. Sound knowledge for persistence technologies such as relational databases, NoSQL databases, off heap storages and distributed caches Hands-on knowledge of Linux / Unix Experience working with senior Quants and Technology Managers Good verbal and written communication Education: Bachelor's degree/University degree or equivalent experience Master's degree preferred This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. What we'll provide you By joining Citi, you will not only be part of a business casual workplace with a hybrid working model (up to 2 days working at home per week), but also receive a competitive base salary (which is annually reviewed), and enjoy a whole host of additional benefits such as: 27 days annual leave (plus bank holidays) A discretional annual performance related bonus Private Medical Care & Life Insurance Employee Assistance Program Pension Plan Paid Parental Leave Special discounts for employees, family, and friends Access to an array of learning and development resources Visit ourGlobal Benefitspage to learn more. Alongside these benefits Citi is committed to ensuring our workplace is where everyone feels comfortable coming to work as their whole self, every day. We want the best talent around the world to be energized to join us, motivated to stay and empowered to thrive. Job Family Group: Technology Job Family: Applications Development Time Type: Full time Most Relevant Skills Please see the requirements listed above. Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi . View Citi's EEO Policy Statement and the Know Your Rights poster.

Senior Software Engineer - Sell-Side Trading Location: London Business Area: Engineering and CTO Ref #: Description & Requirements Every day, thousands of businesses across the globe rely on Bloomberg's Sell-Side Trading Platform to support their trading activity. As part of the Trading Solutions businesses, Sell-Side delivers a global multi-asset solution for trade capture, market making, inventory management, front office collaboration, middle office operations, and electronic trading. By providing customizable workflows, extensive analytics, and high performing functionality, our tools allow users to get the information they need fast and stay one step ahead of the market. We build powerful solutions that allow traders to manage their positions, risk and P&L, make markets using our electronic trading suite of tools, and analyze their clients' behaviors to anticipate future needs. To do this, we employ a broad set of software tools and technology. This includes our award winning . What's in it for you As Senior Software Engineer, you'll work within a team designing and implementing new features and workflows as well as improving our performance and reliability. You'll be given the opportunity to impact the entire research, development, and deployment lifecycle of the software you support, and you'll learn the sell side fixed income industry, our clients, and choose the best solution for their needs. We leverage an agile software development process as well as a continuous integration and deployment pipeline to produce high quality software quickly to production. We expect you to be creative and proactively look for the most suitable technology to solve complex problems. We'll trust you to Design and develop software that provides our clients with high performing, scalable, and flexible workflows Work across a full software stack and be comfortable learning about and supporting different parts of the system Troubleshoot and diagnose issues quickly across a large code base and set of workflows Balance and prioritize development work to provide the most critical and useful functionality to our clients You'll need to have 5+ years of experience programming in C++/C, Java, C#, Javascript, Typescript, or Python Strong knowledge of object oriented design, data structures, and systems and applications programming Experience building scalable, distributed systems with focus on code quality and testing Experience with CI, CD and unit testing Experience collaborating and working across team boundaries to construct comprehensive enterprise wide solutions We'd love to see Prior experience developing trading applications, ideally in the Fixed Income domain Functional expertise building both client and server side code Enthusiasm to drive discussions, share new ideas, and promote best practices on the team If indicated, please note that years of experience are a guide; we will consider applications from all candidates who can demonstrate the skills necessary for the role. Discover what makes Bloomberg unique - watch our for an inside look at our culture, values, and the people behind our success. Bloomberg is an equal opportunity employer and we value diversity at our company. We do not discriminate on the basis of age, ancestry, color, gender identity or expression, genetic predisposition or carrier status, marital status, national or ethnic origin, race, religion or belief, sex, sexual orientation, sexual and other reproductive health decisions, parental or caring status, physical or mental disability, pregnancy or parental leave, protected veteran status, status as a victim of domestic violence, or any other classification protected by applicable law. Bloomberg is a disability inclusive employer. Please let us know if you require any reasonable adjustments to be made for the recruitment process. If you would prefer to discuss this confidentially, please email

About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across four core services: clearing, agency and execution, market making, and hedging and investment solutions. It has a leading franchise in many major metals, energy and agricultural products, with access to 60 exchanges. The group provides access to the world's major commodity markets, covering a broad range of clients that include some of the largest commodity producers, consumers and traders, banks, hedge funds and asset managers. With more than 40 offices worldwide, the group has over 3,000 employees across Europe, Asia and the Americas. For more information visit Position Reference: VN2646 Department description Marex has unique access across markets with significant share globally both on and off exchange. The depth of knowledge amongst its teams and divisions provides its customers with clear advantages, and its technology led service provides access to all major exchanges, order flow management via screen, voice and DMA, plus award winning data, insights and analytics. The Enterprise Technology team sits at the centre of Marex's technology landscape, delivering a cross business platform that enables our trading and business streams to innovate and go to market at pace. We provide shared capabilities including API gateways, centralised APIs, real time data streaming, connectivity solutions and emerging AI driven services. By building scalable, resilient and reusable platform components, the team reduces duplication, accelerates product delivery and ensures consistent standards across the organisation. Engine Room is a core part of this strategy, forming the foundation upon which next generation digital services are built. Marex recognises the need to provide digital services to give client's the best possible experience. As such, the technology team at Marex is playing an increasingly important role in the evolution of the firm and enabling business growth and new products and services. Role Summary Join the Enterprise team working on Engine Room, one of Marex's most strategic technology initiatives. As a Full Stack Developer, you'll help build and evolve a modern, enterprise grade platform at the core of the business. We're growing quickly and need energetic, flexible thinkers who can respond to changing demands, work collaboratively, and bring ideas to the table. If you enjoy solving complex problems in a fast moving environment and want to help shape technology that truly matters, this is the role for you. Responsibilities Role specific: Design, develop and maintain high quality NodeJS/Typescript solutions within the Engine Room platform. Contribute to the development of shared enterprise capabilities including API gateways, centralised APIs, real time data streaming, connectivity frameworks and AI enabled services. Build scalable, resilient and high performance services that support multiple business streams across Marex. Collaborate closely with product owners, architects and other engineering teams to translate business requirements into robust technical solutions. Contribute to architectural design discussions and help shape platform standards, patterns and best practices. Ensure solutions are secure, observable and aligned with enterprise governance and regulatory requirements. Support the continuous improvement of CI/CD pipelines, automated testing and DevOps practices. Participate actively in team discussions, technical brainstorming sessions and knowledge sharing. Adapt quickly to changing priorities and evolving business demands in a fast paced environment. Provide support and troubleshooting for production systems where required, ensuring high availability and reliability. Contribute to documentation and maintain clear technical artefacts to support long term platform sustainability. Promote a collaborative, inclusive and high performing team culture. All staff: Ensure compliance with the company's regulatory requirements under the FCA. Adhere to the operational risk framework for your role ensuring that all regulatory or company determined parameters are complied with. Role model for demonstrating highest level standards of integrity and conduct and reflecting Company Values. At all times comply with the FCA's Code of Conduct. Ensure that you are fully aware of and adhere to internal policies that relate to you, your role or any other activities for which you have any level of responsibility. Report any breaches of policy to Compliance and/or your supervisor as required. Escalate risk events immediately. Provide input to risk management processes, as required. Competencies, Skills, Experience & Qualifications Competencies: A collaborative team player, approachable, self efficient and influences a positive work Environment. Demonstrates curiosity. Resilient in a challenging, fast paced environment. Ability to take a high level of responsibility in a fast pace and high volume environment. Excels at building relationships, networking and influencing others. Strategic collaborator with insight and agility, able to anticipate future challenges, ensuring operational effectiveness. Skills and Experience - Essential: Strong commercial experience in NodeJS / Typescript development. Experience building RESTful APIs and microservices in enterprise environments. Good working knowledge of React and modern front end development principles. Experience working with AWS cloud services (e.g. ECS/EKS, Lambda, S3, RDS, API Gateway) Experience with event driven architectures, ideally using Kafka. Understanding of CI/CD pipelines, automated testing and DevOps practices. Experience with Infrastructure as Code, ideally Terraform. Strong understanding of software design principles (SOLID, clean architecture, domain driven design concepts). Experience working in Agile/Scrum delivery environments. Desirable: Working knowledge of Python or C#. Experience building or contributing to enterprise platform or shared services environments. Exposure to API gateway technologies and distributed systems design. Experience implementing observability tooling (logging, monitoring, tracing). Financial services or capital markets experience (advantageous but not essential). Experience using CDM as a data model (advantageous but not essential). Conduct Rules Act with integrity Act with due skill, care and diligence Be open and cooperative with the FCA, the PRA and other regulators Pay due regard to the interests of customers and treat them fairly Observe proper standard of market conduct Act to deliver good outcomes for retail customers Company Values Acting as a role model for the values of the Company: Respect Clients are at the heart of our business, with superior execution and superb client service the foundation of the firm. We respect our clients and always treat them fairly. Integrity Doing business the right way is the only way. We hold ourselves to a high ethical standard in everything we do - our clients expect this and we demand it of ourselves. Collaborative We work in teams - open and direct communication and the willingness to work hard and collaboratively are the basis for effective teamwork. Working well with others is necessary for us to succeed at what we do. Developing our People Our people are the basis of our competitive advantage. We look to "grow our own" and make Marex the place ambitious, hardworking, talented people choose to build their careers. Adaptable and Nimble Our size and flexibility is an advantage. We are big enough to support our client's various needs, and adaptable and nimble enough to respond quickly to changing conditions or requirements. A non-bureaucratic, but well controlled environment fosters initiative as well as employee satisfaction. Marex is fully committed to being an inclusive employer and providing an inclusive and accessible recruitment process for all. We will provide reasonable adjustments to remove any disadvantage to you being considered for this role. We value the differences that a diverse workforce brings to the company. We welcome applications from candidates returning to the workforce. Also, Marex is committed to avoiding circumstances in which the appearance or possibility of conflicts of interest may exist within the hiring process. If you would like to receive any information in a different way or would like us to do anything differently to help you, please include it in your application.

The Role: This is an amazing opportunity to work with Markets Information Security Team at ION. As a Product Security Engineer, you would be the key enabler of secure and compliant products. This role reports to the Product Security Lead and partners closely with engineering and product teams to increase the overall product security posture. You will own and scale product/application security by embedding security into the Secure SDLC, automating controls in CI/CD, and driving measurable risk reduction. The role is hands on: you will perform security focused code review and targeted testing, strengthen API security, implement supply chain security (SCA/SBOM) practices, and run an efficient vulnerability lifecycle with clear SLAs and metrics. Key Responsibilities Secure SDLC Ownership: Help to define lightweight, measurable SSDLC (requirements, design checks, guidance, release criteria); establish "paved roads" (reference architectures, secure templates, approved libs/patterns). CI/CD Security Automation (Shift left): Own AppSec toolchain/pipelines (SAST, DAST, SCA, secrets, IaC/container); integrate risk based gating with clear developer feedback; tune rules, cut false positives, and standardize triage (tickets, auto routing, SLAs). Code Review & Secure Engineering Support: Perform security code reviews for critical areas (authn/authz, sessions, crypto, data protection, input validation, business logic); provide remediation guidance, secure patterns, and concise code/design examples. API & Service Security: Lead API security (OAuth/OIDC, token handling, rate limiting, schema validation, anti abuse, secure errors, logging/monitoring); drive API testing (contracts + targeted DAST); partner on service to service security. Secure Design Reviews & Threat Modeling: Run pragmatic threat modelling/design reviews for new features and changes; produce actionable outputs (mitigations, backlog, acceptance criteria, test cases); maintain requirements for identity, sensitive data, and privacy by design. Supply Chain Security (SCA/SBOM): Manage dependency risk (triage, upgrade strategies, deprecations, guardrails); establish SBOM generation/use and provide evidence for assurance; assess third party components/SDKs and provenance/attestation risks. Vulnerability Lifecycle, SLAs & Metrics: Run intake/triage across tools, pen tests, VDP/bug bounty, and internal findings; define remediation SLAs by severity/exploitability and asset criticality, manage exceptions and verify fixes; report meaningful metrics (MTTD, MTTF, reopen rate, recurring classes, coverage, control effectiveness). Hands on Testing (Targeted & Risk Based): Execute focused testing on high risk areas (web, APIs, mobile/auth flows) to validate exploitability; coordinate third party testing and ensure findings translate into prioritized engineering outcomes. Required Skills, Qualifications and Experience Skills in: 6+ years in Product Security / Application Security, with demonstrable engineering-facing delivery. Strong understanding of OWASP (Web + API risks) and modern attack paths (authz flaws, SSRF, injection, deserialization, business logic abuse, supply chain). Hands on experience integrating security into CI/CD (SAST/DAST/SCA/secrets), triaging findings, and enabling developer remediation. Comfortable reading/reviewing code in at least one backend language (e.g., Java, C++, Go, Python, Node.js) and common web stacks. Solid grasp of cloud-native delivery practices: microservices, containers, CI/CD, IaC fundamentals, observability, and logging. Strong communication skills: able to translate risk into clear engineering actions and influence outcomes. Nice to Have Threat modeling experience (STRIDE or similar) with real production outcomes. Fintech or regulated-environment experience in translating obligations into product controls (e.g., PCI, GDPR/DORA concepts). Bug bounty/VDP experience (triage, validation, reporter comms process). Certifications: OSWE/OSCP/GPEN/GXPN, cloud certifications, or secure software development certifications. Ability to Effectively communicate technical issues to diverse audiences, both in writing and verbally. Handle sensitive and confidential matters, situations, and data. Understand and follow broad and complex instructions. Comprehend technical language and to confer, analyse and write in an objective, lucid manner. Work independently and prioritize multiple tasks and adapt to needed changes. Remain calm under high pressure/difficult situations. Preferred Certifications OSWE/OSCP/GPEN/GXPN, cloud certifications, or secure software development certifications. About us We're a diverse group of visionary innovators who provide trading and workflow automation software, high value analytics, and strategic consulting to corporations, central banks, financial institutions, and governments. Founded in 1999, we've achieved tremendous growth by bringing together some of the best and most successful financial technology companies in the world. • Over 2,000 of the world's leading corporations, including 50% of the Fortune 500 and 30% of the world's central banks, trust ION solutions to manage their cash, in house banking, commodity supply chain, trading and risk. • Over 800 of the world's leading banks and broker dealers use our electronic trading platforms to operate the world's financial market infrastructure. ION is a rapidly expanding and dynamic group with 13,000 employees and offices in more than 40 cities around the globe. Our ever expanding global footprint, cutting edge products, and over 40,000 customers worldwide provide an unparalleled career experience for those who share our vision. ION is committed to maintaining a supportive and inclusive environment for people with diverse backgrounds and experiences. We respect the varied identities, abilities, cultures, and traditions of the individuals who comprise our organization and recognize the value that different backgrounds and points of view bring to our business. ION adheres to an equal employment opportunity policy that prohibits discriminatory practices or harassment against applicants or employees based on any legally impermissible factor.

Senior Software Developer - Market Making Technology London, GB Full-Time Information Technology About Marex Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across four core services: clearing, agency and execution, market making, and hedging and investment solutions. It has a leading franchise in many major metals, energy and agricultural products, with access to 60 exchanges. The group provides access to the world's major commodity markets, covering a broad range of clients that include some of the largest commodity producers, consumers and traders, banks, hedge funds and asset managers. With more than 40 offices worldwide, the group has over 2,300 employees across Europe, Asia and the Americas. Department description Marex has unique access across markets with significant share globally both on and off exchange. The depth of knowledge amongst its teams and divisions provides its customers with clear advantage, and its technology led service provides access to all major exchanges, order flow management via screen, voice and DMA, plus award winning data, insights and analytics. The Market Making division within Marex encompasses asset classes where Marex acts as a principal risk taker to provide pricing and liquidity to our clients, including but not limited to Base Metals, Precious Metals, Agricultural Products, Energy, US Power, and Environmental contracts. The Technology Department delivers differentiation, scalability and security for the business. Technology provides digital tools, software services and infrastructure globally to all business groups. Software development and support teams work in agile 'streams' aligned to specific business areas. Our other teams work enterprise wide to provide critical services including our global service desk, network and system infrastructure, IT operations, security, enterprise architecture and design. Role Summary Market Making at Marex is a critical and growing business, operating across multiple asset classes and geographies. The Market Making businesses have a high degree of complexity, operating with multiple workflows and booking systems, across different Marex entities and in different regions. The business uses several different technologies, some built in-house, others vendor driven. In this role as a Market Making Senior Software Developer, you will work closely with both business stakeholders and engineering teams to identify, design, and deliver products that strengthen our market making capabilities and improve operational efficiency across the business. Your role is critical to the future success of the Market Making business as we seek to drive technology led growth. Responsibilities Role specific Design, develop and maintain high-quality for internal and external facing applications. Build scalable, resilient and high performance services that support multiple business streams across Marex. Collaborate closely with product owners, architects and other engineering teams to translate business requirements into robust technical solutions. Contribute to architectural design discussions and help shape platform standards, patterns and best practices. Ensure solutions are secure, observable and aligned with enterprise governance and regulatory requirements. Support the continuous improvement of CI/CD pipelines, automated testing and DevOps practices. Participate actively in team discussions, technical brainstorming sessions and knowledge sharing. Adapt quickly to changing priorities and evolving business demands in a fast paced environment. Provide support and troubleshooting for production systems where required, ensuring high availability and reliability. Contribute to documentation and maintain clear technical artefacts to support long term platform sustainability. Promote a collaborative, inclusive and high performing team culture. All staff Ensure compliance with the company's regulatory requirements under the FCA. Adhere to the operational risk framework for your role ensuring that all regulatory or company determined parameters are complied with. Role model for demonstrating highest level standards of integrity and conduct and reflecting Company Values. At all times comply with the FCA's Code of Conduct. Ensure that you are fully aware of and adhere to internal policies that relate to you, your role or any other activities for which you have any level of responsibility. Report any breaches of policy to Compliance and/ or your supervisor as required. Escalate risk events immediately. Provide input to risk management processes, as required. Competencies, Skills and Experience Competencies A collaborative team player, approachable, self efficient and influences a positive work environment. Resilient in a challenging, fast paced environment. Ability to take a high level of responsibility in a fast pace and high volume environment. Excels at building relationships, networking and influencing others. Strategic collaborator with insight and agility, able to anticipate future challenges, ensuring operational effectiveness. Skills and Experience: Essential Experience of NoSQL or RDMS databases. Knowledge of modern CI/CD and DevOps practices. Experience working with AWS cloud services (e.g. ECS/EKS, Lambda, S3, RDS, API Gateway). Knowledge of BDD/TDD. Experience working in Agile / Scrum delivery environments. Methodical approach to software architecture and design and experience employing the right design choices for a given project. Strong verbal and written communication skills. Experience in C# .NET. Extended knowledge across multiple asset classes. Trade Lifecycle knowledge. Pre trade, Trade, settlement/clearing, Risk. Full front to back. Experience with trading or pricing platforms. Microsoft Technologies, Cloud services, hosting and deployment. Experience implementing observability tooling (logging, monitoring, tracing). Experience working in a regulated environment and knowledge of the risk and compliance requirements associated with this. Conduct Rules You must: Act with integrity Act with due skill, care and diligence Be open and cooperative with the FCA, the PRA and other regulators Pay due regard to the interests of customers and treat them fairly Observe proper standard of market conduct Company Values Acting as a role model for the values of the Company: Respect Clients are at the heart of our business, with superior execution and superb client service the foundation of the firm. We respect our clients and always treat them fairly. Integrity Doing business the right way is the only way. We hold ourselves to a high ethical standard in everything we do - our clients expect this and we demand it of ourselves. Collaborative We work in teams - open and direct communication and the willingness to work hard and collaboratively are the basis for effective teamwork. Working well with others is necessary for us to succeed at what we do. Developing our People Our people are the basis of our competitive advantage. We look to "grow our own" and make Marex the place ambitious, hardworking, talented people choose to build their careers. Adaptable and Nimble Our size and flexibility is an advantage. We are big enough to support our client's various needs, and adaptable and nimble enough to respond quickly to changing conditions or requirements. A non-bureaucratic, but well controlled environment fosters initiative as well as employee satisfaction. Marex is fully committed to being an inclusive employer and providing an inclusive and accessible recruitment process for all. We will provide reasonable adjustments to remove any disadvantage to you being considered for this role. We value the differences that a diverse workforce brings to the company. We welcome applications from candidates returning to the workforce. Also, Marex is committed to avoiding circumstances in which the appearance or possibility of conflicts of interest may exist within the hiring process. If you would like to receive any information in a different way or would like us to do anything differently to help you, please include it in your application.

DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and trading at our own risk. Headquartered in Chicago with offices throughout the U.S., Canada, Europe, and Asia, we trade a variety of asset classes including Fixed Income, ETFs, Equities, FX, Commodities and Energy across all major global markets. We have also leveraged our expertise and technology to expand into three non-traditional strategies: real estate, venture capital and cryptoassets. We operate with respect, curiosity and open minds. The people who thrive here share our belief that it's not just what we do that matters-it's how we do it. DRW is a place of high expectations, integrity, innovation and a willingness to challenge consensus. DRW are looking for an experienced Quant Researcher to join our global commodities trading team to aid in alpha generation, research, development, and maintenance of analytics infrastructure. Responsibilities: Developing systematic trading strategies and alpha generating signals across commodity markets Enhancing data collection procedures to support improved design, development and maintenance of data pipelines to be used in research/trading Analyze large, diverse datasets to identify trends as well as building and maintaining models to support trading decisions. Including the use of AI and LLM's Extract and organize data from a number of source options, performing quantitative analysis in support of trading Assist in the development of analytical tools Collaborate with stakeholders at each stage of project Communicate projects and results to audiences with different backgrounds Create and maintain post-trade diagnostics tools across various strategies Qualifications: A bachelor's, master's, or PhD in mathematics, statistics, physics, engineering, computer science or related field Experience using AI and LLM's Passion and interest for a quant researcher role solving real-world business problems Minimum of two years' experience in alpha generating role Experience working with large datasets, data cleaning, preprocessing, and feature engineering Experience building, validating, deploying, monitoring, and updating predictive models Excellent programming and scripting skills Experience working independently and delivering results Excellent written and oral communication skills, experience communicating complex ideas clearly and concisely to peers and stakeholders Positive, team focused attitude For more information about DRW's processing activities and our use of job applicants' data, please view our Privacy Notice at .

DRW is a diversified trading firm with over 3 decades of experience bringing sophisticated technology and exceptional people together to operate in markets around the world. We value autonomy and the ability to quickly pivot to capture opportunities, so we operate using our own capital and trading at our own risk. Headquartered in Chicago with offices throughout the U.S., Canada, Europe, and Asia, we trade a variety of asset classes including Fixed Income, ETFs, Equities, FX, Commodities and Energy across all major global markets. We have also leveraged our expertise and technology to expand into three non-traditional strategies: real estate, venture capital and cryptoassets. We operate with respect, curiosity and open minds. The people who thrive here share our belief that it's not just what we do that matters-it's how we do it. DRW is a place of high expectations, integrity, innovation and a willingness to challenge consensus. DRW is looking to bring on a Macro Analyst to join the London based research team. The role will be to work primarily with the Equity teams, however, DRW, as a multi-asset proprietary trading firm, provides the opportunity to collaborate in a wide range of products as well. The goal is to work with trading teams to provide insight into Delta 1 and volatility pricing as well as the structuring of trades. As a Macro Analyst, you will be responsible for understanding the current environment and market drivers and translating that into a forward-looking view. We are looking for a results driven individual who enjoys the challenge of understanding a situation in a much greater level of detail than anyone else in the market. In addition to providing daily research updates and real-time coverage for the traders, this role will be an opportunity to build a scalable process which can extend to sectors, indices, and cross asset coverage. Another responsibility will be liaising with external data vendors to evaluate their products and working with software developers to implement a suitable database on which trade ideas can be generated. Understanding the impact of events on derivatives markets will be a key driver of success. This is a rare opportunity to be in a research role where ideas can be translated into trades quickly and efficiently and a chance to be associated with the resulting revenue stream. Responsibilities: Provide real-time analysis on relevant macro stories and headlines Work with traders to structure trades around the research process output Develop sector wide themes and macroeconomic thesis Maintain dividend and earnings calendars Create implied probability distributions around important events Work with Software Engineers to develop automated web scrapers and other data analytics tools Manage external relationships with investor relations teams, sell side research desks and data vendors Engage with the DRW hiring process in order to help build out the team Requirements: Strong understanding of financial markets and global macro themes Extreme attention to detail and accuracy Strong understanding of descriptive statistics Coding capability in R , Python, Matlab or similar statistical language Ability to synthesize qualitative and sometimes messy quantitative information, from often disparate and incomplete sources Experience working with large data sets Understanding of options pricing and greeks Confident communicator For more information about DRW's processing activities and our use of job applicants' data, please view our Privacy Notice at California residents, please review the California Privacy Notice for information about certain legal rights at