Senior Lead Java Engineer | London, UK

London Stock Exchange Group; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Hybrid work model

Healthcare benefits

Retirement planning

Job summary

London Stock Exchange Group is seeking a Senior Lead Java Engineer to join the SwapClear Interfaces team. You will lead design, development and maintenance of Java-based applications central to SwapClear operations within an Agile environment.

The role emphasizes hands-on coding, cloud and front‑end knowledge, and ensuring high-quality, reliable solutions. You will report to the SwapClear Interface Development Team Lead and contribute across the software lifecycle.

Qualifications

• Proven experience in system design, application development, testing, and operational stability using Java.
• Strong knowledge of Spring, Spring MVC and related frameworks.
• Deep understanding of RESTful services and microservices architecture.
• Relational databases, SQL and ORM tools experience.
• Front-end development basics (HTML/CSS/JS).
• Experience with cloud platforms and container technologies.
• Familiar with CI/CD, testing and security practices.

Responsibilities

• Take ownership of the analysis, design, develop and delivery of scalable and maintainable Java based applications.
• Collaborate with cross-functional teams to align 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, liaising with business analysts and CI/CD teams.
• Contribute to test automation and participate in test case design and execution.
• Support production systems, troubleshoot issues and provide timely fixes including out-of-hours support.
• Document technical specifications, workflows and system design.
• Work within an Agile/Scrum team with sprint planning and daily stand-ups.

Skills

Java 17+

Spring Boot

RESTful services

Microservices

SQL/ORM

Frontend basics

CI/CD

Cloud platforms

Test automation

Agile/Scrum

Tools

Apache

JUnit

CI/CD tools

Docker

Kubernetes

Job description

ABOUT US:

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.

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 report to 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 cross-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 Blended.

LSEG Purpose and Values

Our 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, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it's used for and how it's obtained, your rights and how to contact us as a data subject.

If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.