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Job Title: Senior Backend Engineer Location: Dunton Essex - 4 days minimum mandatory onsite Rate: £67.15ph Umbrella Co Basis (Inside IR35) Employment Type: Contract (31.12.26) Hours: Standard 37.5 Hours Per Week Reference: F56475 The Senior Backend Engineer plays a pivotal role in driving the technical success in our backend teams. This position involves architecting scalable, resilient, and secure backend solutions and overseeing the technical completion of critical development tasks, often in ambiguous situations. The Senior Backend Engineer is responsible for ensuring that backend code and architectural reviews are aligned with organisational goals, facilitating productive technical discussions, and making decisions to resolve complex backend engineering issues effectively. In this role, the Senior Backend Engineer supports the technical direction for backend development, offering guidance to team members and exemplifying technical excellence in backend practices. Collaboration with frontend, DevOps, and other engineering teams is essential to ensure technical alignment across the organisation. The role also involves leading efforts to implement process improvements within backend development workflows, thereby enhancing productivity and output quality through innovation and collaboration. Strong expertise in backend programming languages (e.g., Java, Python, Go, Node.js) is essential, alongside responsibility for creating and reviewing technical designs for complex backend systems that meet both business goals and technical feasibility. Managing relationships with key stakeholders, balancing their needs with technical constraints, and facilitating open technical communication are also crucial aspects of this role. Skills Required: Extensive multi-year engineering experience specialising in designing, developing, and maintaining robust backend systems and services. Deep expertise in version control systems (e.g., Git/GitHub) and CI/CD tools (e.g., Cloudbuild), including defining and optimising pipelines for backend deployments. Proven proficiency with cloud platforms, particularly GCP, including experience with infrastructure as code and cloud-native services. Demonstrated leadership and practical experience in architectural practices, including designing scalable, resilient, and secure backend solutions. Customer-focused with a strong commitment to team collaboration and driving successful outcomes. Strong drive for delivering high-quality, performant, and value-added results. Demonstrated commitment to quality assurance and adherence to delivery timelines. Ability to autonomously manage multiple complex assignments with minimal direction, providing guidance to junior team members. Ability to thrive and contribute effectively within a highly regulated, financial environment. Willingness to be flexible in terms of tasks and timings to meet project demands. Significant experience performing and leading development reviews, ensuring code quality, maintainability, and adherence to best practices. Expertise in Test Driven Development (TDD) and Behaviour Driven Development (BDD) methodologies for backend services. Strong appreciation and practical application of architectural standards and processes essential in large-scale organisations. Java Spring Boot JUnit GCP (Google Cloud Platform) GitHub / Jetbrains products (e.g., IntelliJ IDEA) Fossa (or similar open-source licence compliance tools) SonarQube (or similar code quality analysis tools) Checkmarx (or similar static application security testing tools) Cycode (or similar software supply chain security platforms) Skills preferred: Automotive finance or consumer lending background Experience with regulatory compliance requirements (FCA, PRA guidelines) Knowledge automotive manufacturer finance operations Education Required: STEM degree (Mathematics, Statistics, Computer Science, Engineering) or equivalent experience Additional Information: The preference on main programming language would be Java but open to languages such as python, go, .net. Specific language is not essential but good experience in backend technologies is. Preference for being able to work in a highly regulated environment, automotive finance experience would be a bonus but not a requirement. Inside IR35 Minimum 4 days a week in Dunton Office No terminology within this advert is intended to unlawfully discriminate on the grounds of age, sex, race or disability and we welcome all applications. Our Clients are unable to provide sponsorship for Tier 2 General Visas; therefore, only candidates eligible to work in the UK need apply!

Meroka is building the infrastructure for independent medicine in the United States. Independent physician practices deliver extraordinary care but operate in a fragmented system with opaque pricing, complex administration, and limited negotiating power with large insurers. We are building the data, software, and operational infrastructure that allows independent practices to thrive. At the core of this effort is a large healthcare data platform that aggregates many different data sources into a unified system. This includes public datasets, operational practice data, regulatory information, pricing signals, and quality metrics. On top of this foundation, we are building a direct contracting marketplace where: Independent physician practices can set transparent prices for procedures Employers can evaluate providers based on price and quality Contracts and transactions occur directly between employers and providers The goal is simple: lower costs for employers while improving reimbursement and autonomy for independent practices. We believe in clear communication, practical systems, thoughtful design, and long term thinking. Our tone is warm, grounded, and confident but never corporate or clinical. You want to focus purely on AI model research rather than building production systems You prefer working on isolated technical problems rather than integrating complex real world systems You are uncomfortable working with messy real world datasets that require structuring and normalization You want highly rigid specifications rather than working iteratively with product, operations, and leadership You avoid industries where compliance, auditability, and real operational impact are critical What You'll Do Build backend systems that ingest, structure, and manage large healthcare datasets from many sources Design and maintain data pipelines that normalize and unify complex healthcare data Develop APIs and services that power Meroka's internal tools and marketplace infrastructure Build systems that generate pricing intelligence and provider insights from large datasets Help design and implement quality scoring and benchmarking frameworks for independent practices Contribute to backend systems supporting employer and provider transactions on the Meroka marketplace Develop AI assisted tools that help structure data, automate workflows, and generate operational insights Work closely with product, operations, and leadership to translate real world healthcare problems into software systems Design systems with reliability, transparency, and auditability from the start Take ownership of backend architecture that will support the long term growth of the platform Has 3 or more years of experience in software engineering, ideally with a backend or data infrastructure focus Is comfortable working with large structured and unstructured datasets Has experience building data pipelines, APIs, and integration layers Brings strong programming skills in Python, TypeScript, or similar languages Has experience working with LLMs or AI orchestration frameworks Understands how to build systems with reliability, transparency, and auditability Can collaborate closely with non technical teams to translate operational workflows into software systems Thrives in early stage environments where ownership, speed, and clarity are essential What We Offer Competitive compensation and health benefits We love building together and this role would be based in London face-to-face with the team The opportunity to help build one of the most useful healthcare data platforms supporting independent physician practices Ownership of core infrastructure that powers pricing intelligence and marketplace transactions A thoughtful, ambitious team that values pragmatism, clarity, and long term thinking This role is based in London and part of a distributed engineering team across London, Montréal, Ottawa, and Vancouver. The team currently is growing as Meroka expands its data platform and marketplace capabilities. Occasional travel to the United States or Canada may occur for team collaboration or product initiatives. How to Apply Send us your CV and examples of systems you have built. Bonus points if you include a short Loom video walking us through a project where you: built a data pipeline unified multiple datasets into a usable system automated a complex operational workflow

A healthcare technology company is seeking a software engineer to build backend systems for managing large healthcare datasets and developing APIs for its marketplace. The ideal candidate will have over 3 years of experience in software engineering, strong programming skills in Python or TypeScript, and an ability to work with complex data. Joining this innovative team offers competitive compensation and health benefits while contributing to a vital healthcare data platform.

As a Software Engineer II, you will join our London-based engineering team, contributing to the design, development, and delivery of Java, Python and TypeScript-based blockchain applications. Working alongside experienced engineers with decades of Markets expertise, you'll build production-grade blockchain services, learn cutting-edge DLT technologies, and help transform the financial ecosystem from the inside. This role offers the opportunity to grow your skills in blockchain and distributed systems while working on high-impact projects with direct visibility to business leaders across the industry's leading markets business. Markets Digital Assets focuses on designing and building production-grade solutions leveraging Blockchain and Distributed Ledger Technologies (DLT) to transform JPMorgan's CIB Markets business. We partner closely with Front Office, Product, Operations, and core platform teams to deliver secure, scalable, and compliant digital asset capabilities across our private blockchain network, Kinexys Digital Assets, and public blockchains. Job Responsibilities Develop scalable, secure services using Java Spring Boot, TypeScript/NestJS, ReactJS, and Python Contribute to end-to-end delivery: implementation, testing, CI/CD, deployment, and production support Write clean, maintainable code and participate in code reviews to uphold engineering standards for quality, observability, and performance Collaborate with Front Office, Product, Operations, and platform teams to build and deliver transformative DLT use cases Learn and apply blockchain technologies in a full-stack DApps build environment across private and public blockchains Work with enterprise development toolchains including Git, Jenkins, and CI/CD pipelines Engage with senior engineers and architects to understand distributed systems design and best practices Participate in team knowledge-sharing, hackathons, and experimentation with emerging technologies Contribute to the team's technical output and help advocate for DLT within the firm Required qualifications, capabilities and skills Hands on software engineering experience with Java Spring Boot/Python or similar modern backend frameworks Understanding of software development fundamentals: data structures, algorithms, object oriented design Experience with version control (Git) and working in collaborative development environments Eagerness to learn distributed systems, blockchain technologies, and cloud native architectures Strong problem solving skills and ability to work effectively in a team Excellent communication and collaboration skills; comfort working with diverse stakeholder groups Familiarity with CI/CD pipelines, automated testing, and DevOps practices Interest in or exposure to blockchain and Distributed Ledger Technologies (DLT) Preferred qualifications, capabilities and skills Familiarity with TypeScript, JavaScript, or front end development (ReactJS or similar frameworks) Experience building on public or permissioned blockchain platforms (e.g., Solana, Ethereum/EVM, Hyperledger, Polkadot, Cosmos, Avalanche, Canton) Understanding of cryptographic protocols, smart contracts, or key management Experience with AWS services and cloud native architectures Interest in front office or trade processing environments within financial services

UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: UK-Highest Level of Government Clearance TRAVEL: Yes, 10% of the Time Salary: £44,100 - £66,100 What's your possible? At Northrop Grumman UK, you are part of a team driving innovation where it matters most - solving tomorrow's challenges and shaping the technology solutions of the future. It's what we call Defining Possible . This mindset goes beyond our customer solutions; it's the foundation for your career development and the positive impact we create within our communities. The Opportunity This is more than just a job; it's a mission . As a Senior Software Engineer, you will design, develop and maintain the critical software that underpins our mission-led solutions. You'll work across varied and meaningful projects, collaborating with talented engineers to solve complex and unique technical challenges. With the chance to influence architectural decisions, contribute to hands-on development, and help shape our engineering practices, this role offers a rare opportunity to make a genuine impact in a team committed to pushing boundaries. "My purpose is to lead a team of engineers, rise to the challenges presented, push the boundaries and define possible together." - Matthew Bullock, Software Manager, Northrop Grumman UK. What you'll be doing Deliver hands on development and contribute directly to the codebase, including peer reviews. Design software features and clearly communicate design choices in line with product roadmaps. Break down complex work into clear, achievable tasks aligned with Agile delivery. Support the setup and maintenance of CI/CD pipelines. Showcase progress through demonstrations to internal and external stakeholders. What we're looking for Experience as a Software Engineer in one or more of the following: Backend development (Java Spring Boot, Maven, Python) Frontend development (JavaScript/TypeScript, React, npm) Familiarity with CI/CD, containerisation, deployment tools and cloud platforms (e.g. Jenkins, Kubernetes, Docker, AWS). Understanding of database technologies such as SQL, Elasticsearch or MongoDB. Strong communication, collaboration and problem solving skills, ideally with some experience of Agile ways of working. If you meet most-but not all-of the criteria, we still encourage you to apply. We value potential as much as experience. Security Clearance Due to the nature of our work, you must be a UK national for this level of clearance. You must currently hold the highest level of UK Government security clearance . Our recruitment team is on hand to answer questions and guide you through the process: . What we offer Flexible and hybrid working options, including an optional compressed fortnight with every other Friday off. Private healthcare. Cash health plan and wellbeing support. Holiday buy/sell options. Career development pathways, mentoring and professional training. Performance related bonuses. Why join Northrop Grumman UK? A mission to believe in - Every day we contribute to building a more secure and connected world. From engineering data and intelligence solutions to maritime navigation and command systems for the UK and NATO, the work you do here matters. A place to belong and thrive - Every voice matters. You'll find supportive employee networks, partnerships with organisations including AFBE, Forces Transition Group, Mind and Women in Defence, and a culture where you can bring your full, authentic self to work. Your career, your way - Shape your future with diverse roles, learning opportunities and the flexibility to balance work with life. From health and wellbeing benefits to pension support and growth programmes, we're here to help you build the career that's right for you. Ready to apply? Yes - Submit your application online today. Possibly, I'd like to find out more - Contact our team at . No, I don't think this role is right for me - We're continuing to grow across the UK. Explore our other opportunities and discover what else might be possible. Northrop Grumman is committed to hiring and retaining a diverse workforce, and encourages individuals from all backgrounds and all abilities to apply and consider becoming a part of our diverse and inclusive workforce.

A leading defense technology company in the UK is seeking a Senior Software Engineer to design and develop critical software solutions. This role involves hands-on development, collaborating with talented engineers, and influencing architectural decisions. You will work in a dynamic team pushing the limits of technology. Ideal candidates should have experience in both backend and frontend development, with strong problem-solving skills. This position offers competitive salary and benefits, including private healthcare and flexible working options.

UK CITIZENSHIP REQUIRED FOR THIS POSITION: Yes RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: UK-Highest Level of Government Clearance TRAVEL: Yes, 10% of the Time Salary: £44,100 - £66,100 What's your possible? At Northrop Grumman UK, you are part of a team driving innovation where it matters most - solving tomorrow's challenges and shaping the technology solutions of the future. It's what we call Defining Possible . This mindset goes beyond our customer solutions; it's the foundation for your career development and the positive impact we create within our communities. The Opportunity This is more than just a job; it's a mission . As a Senior Software Engineer, you will design, develop and maintain the critical software that underpins our mission-led solutions. You'll work across varied and meaningful projects, collaborating with talented engineers to solve complex and unique technical challenges. With the chance to influence architectural decisions, contribute to hands-on development, and help shape our engineering practices, this role offers a rare opportunity to make a genuine impact in a team committed to pushing boundaries. "My purpose is to lead a team of engineers, rise to the challenges presented, push the boundaries and define possible together." - Matthew Bullock, Software Manager, Northrop Grumman UK. What you'll be doing Deliver hands on development and contribute directly to the codebase, including peer reviews. Design software features and clearly communicate design choices in line with product roadmaps. Break down complex work into clear, achievable tasks aligned with Agile delivery. Support the setup and maintenance of CI/CD pipelines. Showcase progress through demonstrations to internal and external stakeholders. What we're looking for Experience as a Software Engineer in one or more of the following: Backend development (Java Spring Boot, Maven, Python) Frontend development (JavaScript/TypeScript, React, npm) Familiarity with CI/CD, containerisation, deployment tools and cloud platforms (e.g. Jenkins, Kubernetes, Docker, AWS). Understanding of database technologies such as SQL, Elasticsearch or MongoDB. Strong communication, collaboration and problem solving skills, ideally with some experience of Agile ways of working. If you meet most-but not all-of the criteria, we still encourage you to apply. We value potential as much as experience. Security Clearance Due to the nature of our work, you must be a UK national for this level of clearance. You must currently hold the highest level of UK Government security clearance . Our recruitment team is on hand to answer questions and guide you through the process: . What we offer Flexible and hybrid working options, including an optional compressed fortnight with every other Friday off. Private healthcare. Cash health plan and wellbeing support. Holiday buy/sell options. Career development pathways, mentoring and professional training. Performance related bonuses. Why join Northrop Grumman UK? A mission to believe in - Every day we contribute to building a more secure and connected world. From engineering data and intelligence solutions to maritime navigation and command systems for the UK and NATO, the work you do here matters. A place to belong and thrive - Every voice matters. You'll find supportive employee networks, partnerships with organisations including AFBE, Forces Transition Group, Mind and Women in Defence, and a culture where you can bring your full, authentic self to work. Your career, your way - Shape your future with diverse roles, learning opportunities and the flexibility to balance work with life. From health and wellbeing benefits to pension support and growth programmes, we're here to help you build the career that's right for you. Ready to apply? Yes - Submit your application online today. Possibly, I'd like to find out more - Contact our team at . No, I don't think this role is right for me - We're continuing to grow across the UK. Explore our other opportunities and discover what else might be possible. Northrop Grumman is committed to hiring and retaining a diverse workforce, and encourages individuals from all backgrounds and all abilities to apply and consider becoming a part of our diverse and inclusive workforce.

A leading technology company is looking for a Senior Software Engineer in Greater London. You will design, develop, and maintain critical software, working on diverse projects with a focus on innovation. Key responsibilities include development, architectural influence, and collaboration within a dynamic team. The ideal candidate has experience in backend and frontend technologies, CI/CD, and strong problem-solving skills. Competitive salary, hybrid work options, and career development opportunities are offered.

Senior Software Engineer C++ (Python, SQL, Linux, Trading, FinTech, Financial Technology, Low Latency, Backend) This is a hybrid role, 3 days remote and 2 days in the office Our client actively encourages diversity, equality and inclusion within its workforce and welcomes applications from a diverse background, REC Solutions Limited does not discriminate in regards to age, gender, national ori click apply for full job details

Sponsorship: Unfortunately we are unable to offer sponsorship for this role. This role in 3 words: Build, Collaborate, Deliver Top 3 qualities for this role: Communication, Delivery Expertise, Amplification Where you'll work: Depending on the needs of your business area, we expect hub based people to be in the office at least once a week, and to go to OVO Connection events in-person. You'll be assigned to the closest one of our three hub offices, Bristol, Glasgow, or London; unless your role requires field-based work. Each hub has accessible spaces to park your laptop, is designed to inspire people, help them connect and bring big ideas to life. Everyone belongs at OVO: At OVO, we are on a mission to solve one of humanity's biggest challenges, the climate crisis. And we know it takes all of us to change the world. That's why we need diverse people from all abilities, gender identities, ethnicities, ages, sexual orientations, life experiences and backgrounds to join us. Teamworking for the planet: Everything we do here spins around Plan Zero. So, naturally, the team you'll be joining plays a gigantic role in making that happen. Here's how: As a Senior Software Engineer, you'll own the end-to-end development of complex systems and features that are core to our business. This role in a nutshell: You will lead technical initiatives, make critical design decisions, and mentor engineers to elevate the team's capabilities. Your expertise will be the driving force that ensures we build scalable, high-quality software that pushes our company forward. Your key outcomes will be: Technical Leadership & Architecture: Drive the architectural vision for key features, designing robust, scalable systems and contributing to the technical roadmap to influence the future direction of the product. Engineering Excellence & Quality: Champion best practices by writing clean, efficient code, leading rigorous code reviews, and implementing comprehensive automated testing to ensure high-quality, performant solutions. Mentorship & Team Growth: Lead and mentor other engineers, fostering a culture of continuous learning and collaboration through knowledge sharing, technical discussions, and constructive feedback. Project Execution & Delivery: Translate complex projects into clear, executable tasks within an Agile framework, proactively resolving blockers to ensure the timely and efficient delivery of team commitments. Community & Knowledge Sharing: Actively contribute to the wider engineering community by leading discussions, sharing expertise through documentation and workshops, and driving the exchange of best practices. You'll be successful here at OVO if you Professional Experience: Significant hands on experience developing software in an agile environment, with a proven track record of delivering high-quality, clean code. Backend & Architecture: Expertise in designing and building scalable microservices-based architectures using languages like Node.js, Python, and TypeScript. Cloud & DevOps: Hands on experience with cloud platforms (GCP, AWS), containerization (Docker, Kubernetes), and modern CI/CD practices. Frontend Development: Proficiency in modern frontend frameworks such as React.js and/or React Native. Leadership & Mentorship: Proven ability to lead technical initiatives and mentor other engineers, fostering a culture of technical excellence. Collaboration & Problem Solving: Excellent communication and analytical skills, with the ability to thrive in a high ownership, collaborative team environment. Let's talk about what's in it for you: We'll pay you between £55,000 and £84,923, depending on your specific skills and experience. We keep our pay ranges broad on purpose to give us, and you, flexibility to match your experience to our zero carbon mission. You'll be eligible for an on target bonus of 15%. We have one OVO bonus plan that focuses on the collective performance of our people to deliver our Plan Zero goal. We also offer plenty of green benefits and progressive policies to help you feel like you belong at OVO and there's flex pay. We'll give you 9% Flex Pay on top of your salary - 4% of this is auto enrolled into your pension, and the remaining 5% is yours to do what you like with. You can use this to buy from our extensive range of flexible benefits, including our green benefits which we've put at the heart of our offering, add to your pension or even take it as cash. Here's a taster of what's on offer: For starters, you'll get 34 days of holiday (including bank holidays). For your health With benefits like a healthcare cash plan or private medical insurance depending on your career level, critical illness cover, life assurance, health assessments, and more. For your wellbeing With gym membership, travel insurance, workplace ISA, will writing services, dental insurance, and more. For your lifestyle With extra holiday buying, discount dining, home & tech loans, and supporting your favourite charities with give as you earn donations. For your home Get up to £400 towards any OVO Energy plan, plus great discounts on solar, smart thermostats and EV chargers. For your commute Nab a great deal on ultra low emission car leasing, plus our cycle to work scheme and public transport season ticket loans. Want to hear about our full range of flexible benefits and progressive people policies? Our People Team can tell you everything you need to know. For your Belonging To find better ways to support our people, we need to listen to each other's experiences and find ways to build a truly inclusive and diverse workplace. As part of this, we have 8 Belonging Networks at OVO. Led by our people, for our people - so when you join OVO, you can play a part - big or small - with any of the Networks. It's up to you. Oh, and one last thing We'd be thrilled if you tick off all our boxes, yet we also believe it's just as important we tick off all of yours. And if you think you have most of what we're looking for but not every single thing, go ahead and hit apply. We'd still love to hear from you! If you have any additional requirements, there's a space to let us know on the application form; we want to make the process as easy and comfortable for you as possible.