Test Automation Engineer

About the Role

We are looking for two experienced Senior Test Automation Engineers to join our team in Northampton. The successful candidates will have strong hands‑on experience across functional, API and UI testing, together with proven automation expertise using Karate, Playwright and Java.

You will play a key role in designing and delivering robust test solutions, troubleshooting complex issues, supporting continuous improvement of our testing approach, and providing guidance to junior members of the team.

Experience with in the banking and payments domain would be highly desirable.

• Perform hands‑on functional, API and UI testing across applications and services.
• Design, develop and maintain automated test frameworks and test suites.
• Build and enhance automation solutions using Karate, Playwright and Java.
• Analyse test failures, application behaviour and technical logs to identify and troubleshoot defects.
• Develop effective test scenarios and test cases based on business and technical requirements.
• Contribute to overall test strategy and test design, ensuring appropriate levels of functional and automated coverage.
• Support and mentor junior QA/test engineers, providing technical guidance and best‑practice advice.
• Create, maintain and enhance Git Lab CI/CD pipelines to support automated testing and continuous integration.
• Collaborate closely with developers, business analysts, product owners and other stakeholders.
• Communicate testing progress, risks, issues and technical findings clearly to multiple stakeholders.
• Contribute to continuous improvement of QA processes, automation practices and delivery standards.

• 7-8 years of hands‑on experience in functional testing, including API and UI testing.
• Strong hands‑on experience in test automation.
• Experience with Karate and Playwright, preferably combined with strong Java development/programming skills.
• Excellent debugging and problem‑solving capabilities.
• Hands‑on experience with application and test log analysis.
• Strong understanding of test design, test planning and test execution.
• Experience providing technical guidance and mentoring to junior team members.
• Working knowledge of Git Lab CI/CD, including pipeline creation, maintenance and enhancement.
• Strong communication and stakeholder‑management skills.
• Ability to work effectively within an Agile/Dev Ops environment.

• Previous experience working within the banking or financial services sector.
• Knowledge and experience of the payments landscape, including payment‑related systems and processes.
• Experience working with distributed systems, APIs and modern web applications.
• Experience integrating automated testing into CI/CD pipelines.

We are looking for someone who is:

• Technically strong and hands‑on.
• Analytical, methodical and highly focused on quality.
• Comfortable investigating complex technical issues.
• Able to take ownership and work independently.
• A strong team player who can collaborate across technical and business teams.
• Confident communicating with and influencing multiple stakeholders.
• Passionate about automation and continuous improvement.
• Able to coach and support less experienced members of the team.

Rullion celebrates and supports diversity and is committed to ensuring equal opportunities for both employees and applicants