Senior quality engineer - hybrid

Senior Full Stack Quality Engineer – Katalon, Hybrid - London

Location: Central London

Working Pattern: Hybrid – 3 days per week in office, 2 days per week remote

Salary: £65,000 - £75,000 plus generous bonus scheme

Our client, a leading financial services company are seeking a high-impact Tester/ Full Stack QA Engineer with experience delivering software through lean product teams and a fast release cadence. This is a hands-on role for someone who can combine functional testing, automation, quality advocacy, and team influence without stepping away from delivery.

The role

You’ll sit inside one product team, take ownership of quality across the full test lifecycle, and work closely with developers, product, business analysts, and offshore testers to deliver high-quality releases.

This is a position with real delivery depth - around 80% hands-on testing and automation, with the remaining time focused on mentoring, guidance and raising standards across the team.

Key Responsibilities:

• Owning and evolving automation built in Katalon, including maintaining inherited test packs and creating new scripts.
• Driving quality within a cross-functional Scrum team across planning, refinement, sprint activity, reviews, and retrospectives.
• Designing, executing, and maintaining both manual and automated tests across functional, integration and regression coverage.
• Working closely with engineering and DevOps teams to tackle defects, deployment blockers, and environment issues quickly.
• Partnering with offshore testers, giving direction where needed, and helping build stronger testing capability across the wider team.
• Supporting a shift-left approach, improving collaboration with developers, and helping move testing beyond UI into stronger API and upstream quality practices.
• Tracking and improving quality through meaningful metrics such as test coverage, automation coverage, defect density, and leakage.
• Building product and business knowledge quickly so testing is grounded in real-world process understanding.

What we’re looking for:

• Previous experience operating as a Tester/Quality Engineer at a high level in a hands-on delivery role, within the financial services sector.
• Solid Katalon expertise - this is the key requirement for the role.
• Strong experience in Agile / Scrum teams across both manual testing and automation.
• Exposure to CI/CD pipelines, DevOps delivery practices, and Azure Test Plans.
• Strong experience using Java or Groovy in a QA capacity.
• Experience with Pega, including scenario testing preferred but not required.
• Strong analytical thinking, clear communication, collaboration skills, and the ability to stay effective under pressure.
• Confidence working directly with developers, delivery leads, product stakeholders, and business users.