Lead Test Engineer

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.

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.
Data Platforms is an exciting collective of teams spanning product and engineering teams. LSEG Data Platforms provides a range of tools and solutions for managing, accessing, and distributing financial data. They offer various platforms, including the LSEG Data Platform, LSEG DataScope Select, and LSEG DataScope Warehouse. These platforms enable users to access both LSEG's own data and third-party data, with options for real-time, delayed, and historical data delivery.

Key Responsibilities:

• Design, develop, and maintain automated test scripts for ETL pipelines and data warehouse solutions.
• Develop comprehensive test strategies and plans for data validation, data quality, end-to-end testing, and performance testing.
• Build and implement effective testing strategies aligned with business and technical requirements.
• Plan, execute, and analyze performance testing to ensure scalability and reliability of data solutions.
• Collaborate with data engineers, Product Managers, and stakeholders to understand data requirements and business rules.
• Perform in-depth data testing, including source-to-target mapping, data transformation, and data integrity checks.
• Implement and maintain test automation frameworks using industry-standard tools (e.g., Python, SQL, Selenium, Informatica, Talend, etc.).
• Analyze test results, identify data anomalies, and work with development teams to resolve issues.
• Ensure compliance with financial industry standards and regulatory requirements.
• Report on test progress, quality metrics, and team performance to management.

Required Skills & Experience:

• 8-10 years of experience in test automation, with a focus on ETL and data warehouse testing.
• Strong expertise in building testing strategies, planning performance testing, and executing end-to-end testing.
• Strong expertise in SQL, data profiling, and data validation techniques.
• Hands-on experience with automation tools and frameworks for ETL/data testing.
• In-depth understanding of data warehouse concepts, data modeling, and data integration.
• Exposure to financial industry concepts, products, and regulatory requirements.
• Proven experience managing and mentoring test teams.
• Excellent analytical, problem-solving, and communication skills.

Preferred Qualifications:

• Knowledge of scripting languages (Python, Shell, etc.).
• ISTQB or equivalent testing certification.

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. You will be part of a collaborative and creative culture where we encourage new ideas and are committed to sustainability across our global business. You will experience the critical role we have in helping to re-engineer the financial ecosystem to support and drive sustainable economic growth. Together, we are aiming to achieve this growth by accelerating the just transition to net zero, enabling growth of the green economy and creating inclusive economic opportunity.

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

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.

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.