Quality Engineer in London

TCS is a purpose-led transformation company, built on belief. We don’t just help businesses to transform through technology. We support them in making a meaningful difference to the people and communities they serve - our clients include some of the biggest brands in the UK and worldwide. For you, it means more opportunities to make an impact that matters, through challenging projects which demand ambitious innovation.

Be a part of a leading global financial markets infrastructure and data provider. Work in a team responsible to transform and accelerate SDLC processes for the customer’s critical application and data engineering components. Contribute to realise the customer’s ambitious and forward-looking strategy and transformation initiatives.

The role will be integral to realizing the customer’s vision and strategy in transforming some of their critical application and data engineering components. As a global financial markets infrastructure and data provider, the customer keeps abreast of the latest cutting technologies enabling their core services and business requirements. The role is critical in this endeavour by the means of enabling the technical and quality assurance thought leadership and excellence required for the purpose.

• Design and execute manual and automated test cases ensuring coverage across functional, regression, and integration scenarios. Coverage to include financial risk exposure, transaction volume, and business criticality.
• Get reviewed the designed test cases with BA/DEV timely and start execution.
• Validate financial calculations, transaction flows, compliance logic, and reporting across various platforms. This includes end-to-end data validation across ETL pipelines, databases, and reporting layers.
• Validate performance of system via performance and load testing leveraging tools for the purpose.
• Develop and maintain test automation scripts using approved tools for the purpose.
• Ensure that systems and data meet appropriate regulatory requirements enforced by GDPR, SOX and others (as applicable) through targeted test scenarios and documentation.
• Log, track, triage, and report defects using agreed tools.
• Work collaboratively with product owners and business stakeholders to translate requirements into test cases and scenarios.
• Create, maintain, and update documentation and internal knowledge repository.

• Proficient in designing and executing test cases across various test phases.
• Strong understanding of transaction flows, compliance logic and reporting standards.
• Experience with test automation tools and automation frameworks, performance and load testing tools, defect reporting and management tools.
• Skilled in writing SQL queries to validate data across databases, ETL pipelines, and reporting layers.
• Experience working with Microsoft Fabric workspace and notebooks.
• Experience validating data in relational and non-relational databases including CosmosDB.
• Experience validating data in data lakes and lakehouses, i.e., Azure Fabric.
• Experience in working in Agile/Scrum environments with CI/CD pipelines and sprint-based delivery cycles.
• Strong written and verbal communication skills and collaborative mindset to work with internal and external stakeholders.

• MS Azure
• Pytest
• Cosmos DB
• Python
• Microsoft Fabric
• Testrails
• Gitlab/GitHub

• Experience integrating QA workflows with Git, ADO and other tools when needed.
• Experience working with data quality tools such as QC/TE.
• Understanding of QA practices in cloud environments.
• Understanding of financial regulations such as GDPR, SOX etc.
• Formal QA certification.

TCS is consistently voted a Top Employer in the UK and globally. Our competitive salary packages feature pension, health care, life assurance, laptop, phone, access to extensive training resources and discounts within the larger Tata network.

At TCS, we believe in building and sustaining a culture of equity and belonging where everyone can thrive. Our diversity motto is ‘Inclusion without Exception’. You’ll find a welcoming culture and many internal volunteering and social networks to join. Our diversity, inclusion and social activities include LGBTQ+ and mental health networks, as well as health and wellness initiatives and sports events (we even sponsor the London Marathon).

TCS celebrates inclusion without exception. We are open to all and treat applications equally, regardless of ethnicity, disability, gender, age, sexual orientation or beliefs.

If you are an applicant who needs an accommodation due to a disability to complete an employment application, or during any phase of the hiring process, please contact us at with the subject line: “Disability Accommodation Request”.

Due to a high volume of applications, we will be unable to contact each applicant individually on the status of their application. If you have not received a direct response within 30 days, then it should be deemed unsuccessful on this occasion.

Join us and do more of what matters. Apply online now.