Lead BI ETL Test Engineer

Job Title: Lead BI ETL Test Engineer – London

About the Job you are considering:
A data-focused finance testing professional responsible for ensuring accuracy, integrity, and completeness of financial data across systems. Skilled in validating complex data transformations, analysing discrepancies, and supporting finance modernisation initiatives. Combines strong finance domain knowledge with analytical expertise, SQL skills, and a proactive approach to data quality and governance.

Hybrid working:
The places that you work from day to day will vary according to your role, your needs, and those of the business; it will be a blend of Company offices, client sites, and your home; noting that you will be unable to work at home 100% of the time.

Job Role

• Responsible for validating financial data across systems, ensuring accuracy of general ledger balances, journal postings, and reconciliations
• Perform end-to-end testing of data pipelines, transformations, and calculations within finance systems
• Verify data integrity, completeness, and consistency across SaaS platforms and integrated applications
• Analyse data discrepancies, perform root cause analysis, and communicate business and financial impact clearly
• Support finance transformation, modernisation, and data migration initiatives
• Collaborate with finance stakeholders, business users, and technical teams to ensure data quality standards are met
• Validate financial reporting, management information (MI), and regulatory outputs where applicable
• Ensure adherence to financial controls, audit requirements, and governance standards in data testing processes
• Work within agile or hybrid delivery environments, contributing to continuous improvement in testing practices
  
  

Job Skills

• Strong experience in data-centric testing within finance or finance modernisation environments
• Deep understanding of finance processes and concepts such as general ledger, postings, and reconciliations
• Ability to validate complex datasets, transformations, and financial calculations
• Experience testing SaaS platforms and data integrations
• High attention to detail with a focus on data accuracy, completeness, and integrity
• Strong analytical and problem-solving skills with the ability to assess data issues and business impact
• Working knowledge of SQL or data querying techniques for validation and reconciliation
• Familiarity with Azure data platforms, including Azure Databricks
• Exposure to finance data migration, analytics platforms, or large-scale data modernisation initiatives
• Understanding of financial reporting, regulatory requirements, and control frameworks
• Ability to work collaboratively across technical and business teams
• Proactive approach to identifying data risks early and balancing delivery speed with governance and assurance needs.
  
  

We are a Disability Confident Employer:

Capgemini is proud to be a Disability Confident Employer (Level 2) under the UK Government’s Disability Confident scheme. As part of our commitment to inclusive recruitment, we will offer an interview to all candidates who:

• Declare they have a disability, and 
• Meet the minimum essential criteria for the role.

Please opt in during the application process.

Make It Real (what does it mean for you):

• You’d be joining an accredited Great Place to work for Wellbeing in 2024. Employee wellbeing is vitally important to us as an organisation.  We see a healthy and happy workforce a critical component for us to achieve our organisational ambitions. 
  To help support wellbeing we have trained ‘Mental Health Champions’ across each of our business areas, and we have invested in wellbeing apps such as Thrive and Peppy.
• You will be empowered to explore, innovate, and progress. You will benefit from Capgemini’s ‘learning for life’ mindset, meaning you will have countless training and development opportunities from thinktanks to hackathons, and access to 250,000 courses with numerous external certifications from AWS, Microsoft, Harvard Manage Mentor, Cybersecurity qualifications and much more.
• You will be joining one of the World’s Most Ethical Companies®, as recognised by Ethisphere® for 13 consecutive years. We live our values by making ethical business choices every day. Working ethically is at the centre of our culture at Capgemini, meaning you will be helping to create a future we can all be proud of.
  
  

Why you should consider Capgemini:

Growing clients’ businesses while building a more sustainable, more inclusive future is a tough ask.  When you join Capgemini, you’ll join a thriving company and become part of a collective of free-thinkers, entrepreneurs and industry experts.  We find new ways technology can help us reimagine what’s possible.  It’s why, together, we seek out opportunities that will transform the world’s leading businesses, and it’s how you’ll gain the experiences and connections you need to shape your future.  By learning from each other every day, sharing knowledge, and always pushing yourself to do better, you’ll build the skills you want. You’ll use your skills to help our clients leverage technology to innovate and grow their business. So, it might not always be easy, but making the world a better place rarely is.

About Capgemini:

Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organisations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2024 global revenues of €22.1 billion.
Make it real | www.capgemini.com.