Citi is a world-leading global bank. We have approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. We provide consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management. We enable clients to achieve their strategic financial objectives by providing them with cutting edge ideas, best in class products and solutions, and unparalleled access to capital and liquidity. About Us Join the Technology Application Strategy team, where we empower Citi's global developer community to build better, faster, and with greater satisfaction. We are a dynamic and globally distributed team of passionate technologists across London, Belfast, and the US, dedicated to designing, building, and deploying cutting edge productivity and tooling solutions. Our mission is to revolutionise the developer experience at Citi, providing innovative tools and platforms that streamline workflows, enhance efficiency, and foster a culture of continuous improvement. If you thrive on solving complex problems and aspire to make a significant impact on how thousands of developers operate worldwide, you'll find your challenge here. Role Overview / What will you do? You will play a key role in developing tooling for the Citi developer community using a range of technologies including Java and SpringBoot microservices on Linux on OpenShift. You'll build APIs to integrate with other systems across the bank using industry best practices. You will engage across the entire Software Development Lifecycle (SDLC), from initial design and architecture to development, testing, deployment, and ongoing support, ensuring the delivery of high quality, impactful solutions. Act as a trusted consultant and partner to developers worldwide within Citi. You will provide expert guidance, facilitating their onboarding and maximizing their utilization of the innovative tools and platforms you help create. You will serve as a subject matter expert for both senior stakeholders and team members. You will role model engineering excellence and play your part in actively fostering a culture of continuous learning and openly sharing your knowledge and experience. Key Skills and Experience You will be a highly motivated self starter who is comfortable taking on new challenges with an open and inquisitive mind and a readiness to learn. You will be a competent Java developer who drives with tests and understands the importance of writing clean, testable code. You will have a strong understanding of core Java and have experience building apps using SpringBoot. You will have experience working with build tools such as Gradle. You will be comfortable working with Linux and be familiar with standard developer tooling, such as Git, BitBucket/GitHub, Jira, Confluence, etc. You will have a knowledge of build pipelines, CI/CD and the pathway to production. Desirable Skills Working knowledge of app containerisation and deploying applications on cloud platforms (e.g. OpenShift, AWS, GCP) with Docker or Podman. Experience with relational databases such as Oracle. What we'll provide you By joining Citi Belfast, 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 discretionary 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 Job Family Group Technology Job Family Applications Development Time Type Full time EEO Statement 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.
Feb 27, 2026
Full time
Citi is a world-leading global bank. We have approximately 200 million customer accounts and a presence in more than 160 countries and jurisdictions worldwide. We provide consumers, corporations, governments, and institutions with a broad range of financial products and services, including consumer banking and credit, corporate and investment banking, securities brokerage, transaction services, and wealth management. We enable clients to achieve their strategic financial objectives by providing them with cutting edge ideas, best in class products and solutions, and unparalleled access to capital and liquidity. About Us Join the Technology Application Strategy team, where we empower Citi's global developer community to build better, faster, and with greater satisfaction. We are a dynamic and globally distributed team of passionate technologists across London, Belfast, and the US, dedicated to designing, building, and deploying cutting edge productivity and tooling solutions. Our mission is to revolutionise the developer experience at Citi, providing innovative tools and platforms that streamline workflows, enhance efficiency, and foster a culture of continuous improvement. If you thrive on solving complex problems and aspire to make a significant impact on how thousands of developers operate worldwide, you'll find your challenge here. Role Overview / What will you do? You will play a key role in developing tooling for the Citi developer community using a range of technologies including Java and SpringBoot microservices on Linux on OpenShift. You'll build APIs to integrate with other systems across the bank using industry best practices. You will engage across the entire Software Development Lifecycle (SDLC), from initial design and architecture to development, testing, deployment, and ongoing support, ensuring the delivery of high quality, impactful solutions. Act as a trusted consultant and partner to developers worldwide within Citi. You will provide expert guidance, facilitating their onboarding and maximizing their utilization of the innovative tools and platforms you help create. You will serve as a subject matter expert for both senior stakeholders and team members. You will role model engineering excellence and play your part in actively fostering a culture of continuous learning and openly sharing your knowledge and experience. Key Skills and Experience You will be a highly motivated self starter who is comfortable taking on new challenges with an open and inquisitive mind and a readiness to learn. You will be a competent Java developer who drives with tests and understands the importance of writing clean, testable code. You will have a strong understanding of core Java and have experience building apps using SpringBoot. You will have experience working with build tools such as Gradle. You will be comfortable working with Linux and be familiar with standard developer tooling, such as Git, BitBucket/GitHub, Jira, Confluence, etc. You will have a knowledge of build pipelines, CI/CD and the pathway to production. Desirable Skills Working knowledge of app containerisation and deploying applications on cloud platforms (e.g. OpenShift, AWS, GCP) with Docker or Podman. Experience with relational databases such as Oracle. What we'll provide you By joining Citi Belfast, 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 discretionary 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 Job Family Group Technology Job Family Applications Development Time Type Full time EEO Statement 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.
LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. It's how we've contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services - and our open-access model - we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity.LSEG is headquartered in the United Kingdom, with significant operations in 65 countries across EMEA, North America, Latin America and Asia Pacific. We employ 25,000 people globally, more than half located in Asia Pacific. LSEG's ticker symbol is LSEG. OUR PEOPLE: People are at the heart of what we do and drive the success of our business. Our values of Integrity, Partnership, Excellence and Change shape how we think, how we do things and how we help our people fulfil their potential. We embrace diversity and actively seek to attract individuals with unique backgrounds and perspectives. We break down barriers and encourage teamwork, enabling innovation and rapid development of solutions that make a difference. Our workplace generates an enriching and rewarding experience for our people and customers alike. Our vision is to build an inclusive culture in which everyone feels encouraged to fulfil their potential.We know that real personal growth cannot be achieved by simply climbing a career ladder - which is why we encourage and enable a wealth of avenues and interesting opportunities for everyone to broaden and deepen their skills and expertise. As a global organisation spanning 65 countries and one rooted in a culture of growth, opportunity, diversity and innovation, LSEG is a place where everyone can grow, develop and fulfil your potential with meaningful careers. Role profile:We are looking for a talented and passionate Senior Lead Java Engineer to join the SwapClear Interfaces development team, part of the SwapClear Technology function supporting the LCH Swap Clearing business. The team is responsible for the designing, building, and supporting critical interfaces and systems that facilitate the clearing operations.This Senior Lead Java Engineer role will focus on leading the team in designing, building and maintaining Java-based applications and their related systems that are critical to the SwapClear Clearing operations.You will be worked in scrum team and work collaboratively within an Agile environment to ensure the smooth execution of the software development lifecycle, from planning and development to deployment and support. You will work with the SwapClear Interface development Team Lead while actively contributing to the delivery of high-quality solutions.The successful candidate needs to be hands-on, with a strong and deep understanding of Java plus the knowledge of the front-end and cloud development, and a proactive approach in all aspects of development. You will also be expected to make contributions to testing, ensure the solutions meet high standards for quality and reliability. WHAT YOU'LL BE DOING: Take ownership of the analysis, design, develop and delivery of scalable and maintainable Java based applications Collaborate with multi-functional teams to algin technology solutions with business needs Lead by example with high quality, clean code using modern Java, Spring and related technologies, promote best practices in software engineering Take responsibility for identification, estimation and reporting on progress of tasks, along with liaising across the business analyst, developer and continuous integration teams Contribute to test automation and participate in test case design and execution Support production systems, troubleshoot issues, provide timely fixes including participation in out-of-hours support rota Document technical specifications, workflow and system design Work within an Agile/Scrum team, actively participating in sprint planning, daily stand-ups and retrospectives WHAT YOU'LL BRING: Essential Skills Proven experience in system design, application development, testing, and operational stability using Java Excellent problem-solving, analytical and communication skills Strong in Java 17+ and frameworks like Spring Boot, Spring MVC and Apache Deep understanding of RESTful services and understanding microservices architecture Deep understanding of relational databases, SQL language and ORM tools Deep understanding of message brokers Experience with front-end development using HTML, CSS, JavaScript frameworks Experience with Test Driven Development (TDD) / Behavior Driven Development Experience with cloud platforms and container technologies Experience with performance tuning and system optimization Exposure to agile methodologies such as CI/CD, Application Resiliency, and Security Adaptability to changing project requirements and technologies Desirable skills Experience with the finance domain Knowledge of FpML Knowledge of observability tools WHAT YOU'LL GET IN RETURN: LCH is one of the cornerstones of the world's financial systems and SwapClear is the global leader for its asset class in a challenging and highly competitive market. The SwapClear platform continues to experience significant growth and constant change whilst maintaining the very highest levels of service availability. Developing the software technology pivotal to this success is an exciting and rewarding challenge which will stretch any candidate.We recognize that to attract the best talent, we need to be flexible and we are open to discussing work arrangements with you. We take hybrid approach to workplace, this role is Digital first.LSEG Purpose and ValuesOur purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth. Underpinning our purpose, our values of Integrity, Partnership , Excellence and Change set the standard for everything we do, every day. They guide the way we interact with each other, the partners we work with and our customers. Delivering on our purpose and living up to our values is a responsibility that we all share.To achieve our ambitions through a strong culture, People Leaders need to role model our Values and create the culture for everyone at LSEG to be at their best. Career Stage: Manager London Stock Exchange Group (LSEG) Information: Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership , Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone's race, religion, colour, national origin, gender, sexual orientation,
Feb 26, 2026
Full time
LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. It's how we've contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services - and our open-access model - we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity.LSEG is headquartered in the United Kingdom, with significant operations in 65 countries across EMEA, North America, Latin America and Asia Pacific. We employ 25,000 people globally, more than half located in Asia Pacific. LSEG's ticker symbol is LSEG. OUR PEOPLE: People are at the heart of what we do and drive the success of our business. Our values of Integrity, Partnership, Excellence and Change shape how we think, how we do things and how we help our people fulfil their potential. We embrace diversity and actively seek to attract individuals with unique backgrounds and perspectives. We break down barriers and encourage teamwork, enabling innovation and rapid development of solutions that make a difference. Our workplace generates an enriching and rewarding experience for our people and customers alike. Our vision is to build an inclusive culture in which everyone feels encouraged to fulfil their potential.We know that real personal growth cannot be achieved by simply climbing a career ladder - which is why we encourage and enable a wealth of avenues and interesting opportunities for everyone to broaden and deepen their skills and expertise. As a global organisation spanning 65 countries and one rooted in a culture of growth, opportunity, diversity and innovation, LSEG is a place where everyone can grow, develop and fulfil your potential with meaningful careers. Role profile:We are looking for a talented and passionate Senior Lead Java Engineer to join the SwapClear Interfaces development team, part of the SwapClear Technology function supporting the LCH Swap Clearing business. The team is responsible for the designing, building, and supporting critical interfaces and systems that facilitate the clearing operations.This Senior Lead Java Engineer role will focus on leading the team in designing, building and maintaining Java-based applications and their related systems that are critical to the SwapClear Clearing operations.You will be worked in scrum team and work collaboratively within an Agile environment to ensure the smooth execution of the software development lifecycle, from planning and development to deployment and support. You will work with the SwapClear Interface development Team Lead while actively contributing to the delivery of high-quality solutions.The successful candidate needs to be hands-on, with a strong and deep understanding of Java plus the knowledge of the front-end and cloud development, and a proactive approach in all aspects of development. You will also be expected to make contributions to testing, ensure the solutions meet high standards for quality and reliability. WHAT YOU'LL BE DOING: Take ownership of the analysis, design, develop and delivery of scalable and maintainable Java based applications Collaborate with multi-functional teams to algin technology solutions with business needs Lead by example with high quality, clean code using modern Java, Spring and related technologies, promote best practices in software engineering Take responsibility for identification, estimation and reporting on progress of tasks, along with liaising across the business analyst, developer and continuous integration teams Contribute to test automation and participate in test case design and execution Support production systems, troubleshoot issues, provide timely fixes including participation in out-of-hours support rota Document technical specifications, workflow and system design Work within an Agile/Scrum team, actively participating in sprint planning, daily stand-ups and retrospectives WHAT YOU'LL BRING: Essential Skills Proven experience in system design, application development, testing, and operational stability using Java Excellent problem-solving, analytical and communication skills Strong in Java 17+ and frameworks like Spring Boot, Spring MVC and Apache Deep understanding of RESTful services and understanding microservices architecture Deep understanding of relational databases, SQL language and ORM tools Deep understanding of message brokers Experience with front-end development using HTML, CSS, JavaScript frameworks Experience with Test Driven Development (TDD) / Behavior Driven Development Experience with cloud platforms and container technologies Experience with performance tuning and system optimization Exposure to agile methodologies such as CI/CD, Application Resiliency, and Security Adaptability to changing project requirements and technologies Desirable skills Experience with the finance domain Knowledge of FpML Knowledge of observability tools WHAT YOU'LL GET IN RETURN: LCH is one of the cornerstones of the world's financial systems and SwapClear is the global leader for its asset class in a challenging and highly competitive market. The SwapClear platform continues to experience significant growth and constant change whilst maintaining the very highest levels of service availability. Developing the software technology pivotal to this success is an exciting and rewarding challenge which will stretch any candidate.We recognize that to attract the best talent, we need to be flexible and we are open to discussing work arrangements with you. We take hybrid approach to workplace, this role is Digital first.LSEG Purpose and ValuesOur purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth. Underpinning our purpose, our values of Integrity, Partnership , Excellence and Change set the standard for everything we do, every day. They guide the way we interact with each other, the partners we work with and our customers. Delivering on our purpose and living up to our values is a responsibility that we all share.To achieve our ambitions through a strong culture, People Leaders need to role model our Values and create the culture for everyone at LSEG to be at their best. Career Stage: Manager London Stock Exchange Group (LSEG) Information: Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership , Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce.We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone's race, religion, colour, national origin, gender, sexual orientation,
For more than 30 years, Verifone has been a global leader in electronic payment technology. We work with leading retailers, merchants, banks, and technology partners to deliver secure, reliable, and innovative payment solutions worldwide. What's Exciting About the Role This London based Principal Software Engineer role sits at the heart of Verifone's global payment gateway platform. You will help shape the technical direction of systems responsible for processing high volume, mission critical financial transactions worldwide. At this level, the role goes beyond feature delivery. You will drive architectural decisions, set engineering standards, and influence how teams design, build, and operate secure, scalable backend systems. Success in this role is defined by technical leadership, sound judgment in complex trade offs, and ownership of systems that must perform reliably under real world load and regulatory constraints. Job Description We are seeking a Principal Software Engineer based in London to provide technical leadership across backend services supporting our global payment gateway system. You will design and evolve core platform capabilities, guide architectural decisions across microservices, and mentor engineers while remaining hands on with critical systems built using Java and Spring Boot. You will work closely with senior engineering, platform, product, and infrastructure partners to ensure our systems scale globally, remain secure, and meet the highest standards for availability and performance. Required Skills and Experience Programming Languages Java 17 or higher Frameworks and Libraries Spring Boot Spring Web (REST APIs) Spring Data Spring Security with JWT / OAuth2 Deep experience designing and operating microservice based architectures Strong application of clean code practices and SOLID principles Ownership of system level architecture and cross service design decisions Strong understanding of security, authentication flows, and data protection in distributed systems API & Data Design and governance of RESTful APIs, JSON, and HTTP standards API versioning and backward compatibility strategies MongoDB / NoSQL expertise, including: Data modeling Indexing strategies Performance optimization Advanced experience with Java concurrency, streams, and performance tuning AWS services including EC2, ECS/EKS, S3, RDS and/or DynamoDB, and CloudWatch Docker and containerized deployments CI/CD pipelines and Git based workflows Experience designing systems for scalability, resilience, and operability Strong unit and integration testing practices using JUnit and Mockito Ownership of quality standards, testability, and CI discipline Experience working in Agile / Scrum environments and influencing engineering best practices Experience Level Principal level backend engineering experience building and operating large scale, high performance systems Approximately 8+ years of backend development experience, with several years working on production Java and Spring Boot services Proven experience owning architecture and technical direction for critical backend platforms Extensive production experience with MongoDB, including modeling, indexing, and performance optimization Preferred Skills and Experience Payments & Domain Expertise Background in fintech or payments Experience with payment processing, transactions, and financial data Strong understanding of high availability, security, and data consistency trade offs Eventing & Distributed Systems Experience with event driven architectures Messaging or streaming technologies such as: Kafka AWS SQS Similar eventing systems Platform & Technical Leadership Deep experience with AWS, Docker, and CI/CD practices Proven ability to mentor engineers and raise the technical bar across teams Strong sense of ownership for systems running in production Our Commitment Verifone is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Verifone is also committed to compliance with all fair employment practices regarding citizenship and immigration status.
Feb 25, 2026
Full time
For more than 30 years, Verifone has been a global leader in electronic payment technology. We work with leading retailers, merchants, banks, and technology partners to deliver secure, reliable, and innovative payment solutions worldwide. What's Exciting About the Role This London based Principal Software Engineer role sits at the heart of Verifone's global payment gateway platform. You will help shape the technical direction of systems responsible for processing high volume, mission critical financial transactions worldwide. At this level, the role goes beyond feature delivery. You will drive architectural decisions, set engineering standards, and influence how teams design, build, and operate secure, scalable backend systems. Success in this role is defined by technical leadership, sound judgment in complex trade offs, and ownership of systems that must perform reliably under real world load and regulatory constraints. Job Description We are seeking a Principal Software Engineer based in London to provide technical leadership across backend services supporting our global payment gateway system. You will design and evolve core platform capabilities, guide architectural decisions across microservices, and mentor engineers while remaining hands on with critical systems built using Java and Spring Boot. You will work closely with senior engineering, platform, product, and infrastructure partners to ensure our systems scale globally, remain secure, and meet the highest standards for availability and performance. Required Skills and Experience Programming Languages Java 17 or higher Frameworks and Libraries Spring Boot Spring Web (REST APIs) Spring Data Spring Security with JWT / OAuth2 Deep experience designing and operating microservice based architectures Strong application of clean code practices and SOLID principles Ownership of system level architecture and cross service design decisions Strong understanding of security, authentication flows, and data protection in distributed systems API & Data Design and governance of RESTful APIs, JSON, and HTTP standards API versioning and backward compatibility strategies MongoDB / NoSQL expertise, including: Data modeling Indexing strategies Performance optimization Advanced experience with Java concurrency, streams, and performance tuning AWS services including EC2, ECS/EKS, S3, RDS and/or DynamoDB, and CloudWatch Docker and containerized deployments CI/CD pipelines and Git based workflows Experience designing systems for scalability, resilience, and operability Strong unit and integration testing practices using JUnit and Mockito Ownership of quality standards, testability, and CI discipline Experience working in Agile / Scrum environments and influencing engineering best practices Experience Level Principal level backend engineering experience building and operating large scale, high performance systems Approximately 8+ years of backend development experience, with several years working on production Java and Spring Boot services Proven experience owning architecture and technical direction for critical backend platforms Extensive production experience with MongoDB, including modeling, indexing, and performance optimization Preferred Skills and Experience Payments & Domain Expertise Background in fintech or payments Experience with payment processing, transactions, and financial data Strong understanding of high availability, security, and data consistency trade offs Eventing & Distributed Systems Experience with event driven architectures Messaging or streaming technologies such as: Kafka AWS SQS Similar eventing systems Platform & Technical Leadership Deep experience with AWS, Docker, and CI/CD practices Proven ability to mentor engineers and raise the technical bar across teams Strong sense of ownership for systems running in production Our Commitment Verifone is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Verifone is also committed to compliance with all fair employment practices regarding citizenship and immigration status.
