Hybrid Senior API QA Engineer

Tombola job board; Sunderland; Hybrid; GBP 55,000 - 75,000; Full time

Job summary

tombola is seeking a Senior Test Engineer to champion quality across API and backend testing. The role combines hands-on delivery with shaping testing approaches, collaborating with developers, product, and compliance teams to ensure reliable releases. Time onsite in Sunderland with remote days supports collaboration and focus.

You will design test plans, implement manual and automated API tests, and drive CI/CD integration while mentoring peers and improving QA practices across the team.

Qualifications

• Experience testing RESTful APIs using Postman and JavaScript-based test scripting.
• Familiarity with HTTP methods, status codes, JSON schemas, and API authentication.
• Experience in environments where quality and compliance are important.
• Knowledge of version control and CI/CD pipelines.
• Ability to communicate with technical and non-technical stakeholders.
• Experience working in agile teams.
• Strong attention to detail and risk-based thinking.

Responsibilities

• Design, write, and execute test plans and test cases for APIs and applications within the game engine.
• Create and maintain manual and automated API tests using Postman.
• Manage Postman collections and environments.
• Validate response formats, status codes, business logic, and data integrity.
• Identify risks and gaps, supporting confident releases.
• Integrate API tests into CI/CD pipelines.
• Support promotion of releases in test environments and QA sign-off.
• Conduct performance and load testing and identify regressions or bottlenecks.
• Ensure testing evidence aligns with regulatory and compliance requirements.
• Support audit readiness and traceability.
• Mentor teammates and share QA knowledge.

Skills

API testing

Postman

JavaScript tests

REST API

CI/CD pipelines

Agile teamwork

Attention to detail

QA mentoring

Tools

Postman

Newman

Job description

tombola is seeking a Senior Test Engineer to champion quality across API and backend testing. The role combines hands-on delivery with shaping testing approaches, collaborating with developers, product, and compliance teams to ensure reliable releases. Time onsite in Sunderland with remote days supports collaboration and focus.

You will design test plans, implement manual and automated API tests, and drive CI/CD integration while mentoring peers and improving QA practices across the team.