LSEG logo

Senior SDET / Quality Engineering Specialist

LSEG United Kingdom

onsitefull-time
Posted Jan 15, 2026

Role: Senior Quality Engineer (Senior Associate)

Stack/Tools

  • Java development and test automation (JUnit, Rest-Assured, Pact)

  • AWS (Lambda, API Gateway, S3, CloudWatch, IAM)

  • CI/CD, trunk-based development

  • Containerization/orchestration (Docker, Kubernetes, EKS); Podman/Dev Containers for local runs

  • Infrastructure as code (Terraform, CloudFormation)

  • UI testing (Selenium, Cypress, Playwright) where applicable

  • Testing/observability tools (Localstack, distributed tracing)

Top 3 responsibilities

  • Define and maintain automated testing standards for Java microservices and Python AWS Lambda functions; cover unit, component, contract, and end-to-end tests

  • Enable and support teams to run containerized services locally; ensure reliable pipelines and integration in trunk-based workflows

  • Collaborate with developers, analysts, and engineers to embed quality early, improve testing frameworks, and enhance CI/CD pipelines

Must-have skills

  • Strong Java development and test automation experience

  • Knowledge of microservices testing strategies and AWS services (Lambda, API Gateway, S3, CloudWatch, IAM)

  • Familiarity with CI/CD, trunk-based development, and containerization (Docker/Kubernetes, EKS)

  • Experience with Pact, Rest-Assured, Mockito; exposure to performance testing and distributed tracing/observability

  • Excellent communication and commitment to continuous learning

Nice-to-haves

  • UI testing tooling experience (Selenium, Cypress, Playwright)

  • Infrastructure

Full 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. LSEG is headquartered in the United Kingdom, with significant operations in 70 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 culture of connecting, creating opportunity and delivering excellence 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 70 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 SUMMARY: As a Senior Quality Engineer, you will join a central Quality Enablement team, where you’ll define standards for automated testing across our Java microservices and Python-based AWS Lambda functions. You will: Enable teams to maintain a robust microservices testing strategy, covering unit, component, contract, and simple, maintainable end‑to‑end tests Support engineers in running containerised services locally (e.g., Podman, Dev Containers) to reduce integration issues and keep pipelines reliable within a trunk‑based development workflow Collaborate closely with developers, analysts, and fellow engineers to embed quality early, continuously improve frameworks, and enhance CI/CD pipelines WHAT YOU'LL BE DOING: Build and maintain automated tests using: Java (JUnit, Rest-Assured) Pact for contract testing Sometimes tools like Selenium, Cypress, and Playwright for UI testing (where applicable) Integrate tests into CI/CD pipelines to support trunk-based development Explore new tools and approaches to improve coverage and reliability WHAT YOU'LL BRING: Strong experience in Java development and test automation Knowledge of microservices testing strategies AWS platform knowledge, including Lambda (for integration), API Gateway, S3, CloudWatch, and IAM Familiarity with CI/CD pipelines and trunk-based development Strong communication skills and a passion for continuous learning Experience of performance testing large distributed applications Exposure to containerization & Orchestration: Docker, Kubernetes, EKS Infrastructure as Code: Terraform, CloudFormation Service Resilience: Exposure to test strategies like fault injection, resiliency measures such as circuit breakers or networking layers like service mesh Advanced testing tools: Pact, Rest-Assured, Mockito, Localstack Observability: Distributed tracing and monitoring in microservices Career Stage: Senior Associate 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. If you want to apply for a job, please click the Apply button. You will then be redirected to our Careers sign-in page where you can enter your existing credentials or set up an account with us. If there is nothing that currently suits you, feel free to send us your Resume/CV LSEG (London Stock Exchange Group) 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 culture of connecting, creating opportunity and delivering excellence shapes how we think, how we do things and how we help our people fulfil their potential. Our Data & Analytics, Capital Markets and Post Trade divisions have a combined power that provides a comprehensive, integrated suite of trusted financial market infrastructure services to help our customers pursue their ambitions. Explore our divisions LSEG is headquartered in the United Kingdom, with significant operations in 70 countries across Europe, the Middle East, Africa, North America, Latin America and Asia Pacific. Find out more Get to know some of our people who are pushing the boundaries of technology, finance and more around the world.

JavaTest AutomationMicroservicesAWSCI/CDCommunicationPerformance TestingContainerizationOrchestrationInfrastructure as CodeService ResilienceAdvanced Testing ToolsObservability

Cookies & analytics consent

We serve candidates globally, so we only activate Google Tag Manager and other analytics after you opt in. This keeps us aligned with GDPR/UK DPA, ePrivacy, LGPD, and similar rules. Essential features still run without analytics cookies.

Read how we use data in our Privacy Policy and Terms of Service.