QA Automation Engineer
- Posted 05 January 2026
- Salary £500/day
- LocationCity of London
- Job type Contract
- Discipline Technology , Commodities and Financial Services
Job description
Job Title: QA Automation Engineer (Python / PyTest / Cosmos DB)-Banking Client Exp Required
Location: London- 3 Days/week Onsite
Duration: 6 months+ Contract Inside IR35
500GBP/Day
Role Overview
We are looking for a QA Automation Engineer to join a Pod-based delivery team working on critical applications and data platforms within a global financial market's environment. The role is key to ensuring high quality, reliability, and regulatory compliance across systems that handle large transaction volumes and business-critical data.
The ideal candidate will be hands-on in manual and automated testing, with strong experience in Python, PyTest, and exposure to Cosmos DB. The role also requires close collaboration with developers, product owners, and data engineering teams in an Agile, CI/CD-driven environment.
Key Responsibilities
Design and execute manual and automated test cases across functional, regression, integration, and end-to-end scenarios
Validate financial calculations, transaction flows, compliance logic, and reporting across multiple platforms
Perform end-to-end data validation across ETL pipelines, databases, and reporting layers
Develop, maintain, and enhance test automation scripts using Python and PyTest
Support API testing using tools such as Postman and Python libraries
Validate system performance and scalability using performance and load testing tools
Ensure systems and data meet regulatory requirements (GDPR, SOX, etc.) through targeted test scenarios and documentation
Log, track, triage, and report defects using agreed tools and processes
Work closely with product owners, developers, and business stakeholders to translate requirements into effective test scenarios
Create, maintain, and update test documentation and internal knowledge repositories
Essential Skills & Experience
Strong experience designing and executing test cases across multiple test phases
Hands-on Python experience for test automation
Strong experience with PyTest (or similar automation frameworks such as Robot Framework)
Experience working with Cosmos DB (or strong NoSQL database testing experience)
Experience in API testing (Postman, Requests, etc.)
Strong SQL skills for data validation across databases and reporting layers
Experience with Big Data testing and data-intensive platforms
Familiarity with CI/CD pipelines and version control tools (Git, Jenkins, GitLab CI, Azure DevOps)
Experience working in Agile / Scrum environments
Strong communication skills and ability to collaborate within cross-functional Pod teams
Desirable / Nice to Have
Experience working in financial services or banking environments
Understanding of financial regulations such as GDPR, SOX
Experience with cloud-based QA practices
Exposure to AI-assisted testing tools
Knowledge of web technologies (HTML, CSS, JavaScript) and browser automation tools (Selenium)
Formal QA certification (ISTQB or equivalent)
Experience with Microsoft Fabric (advantageous)
What the Client Is Looking For
A hands-on QA engineer, not just a test coordinator
Comfortable working in fast-paced, high-volume, regulated environments
Strong automation mindset with attention to data quality and system reliability
Ability to adapt quickly and deliver quality at speed
Apply now!
