Test Engineer

Our Capability Development team delivers bespoke, high-assurance software for clients in the Cyber Security domain. We engineer resilient systems ranging from rigorously assured products to rapid cyber solutions and blended operational platforms. Common to all is our commitment to technically led decisions, architectural clarity, and delivering software that operates reliably in high-stakes environments.

To support this mission, we are seeking a Test Engineer to help ensure the quality and reliability of our software through thorough, hands‑on testing. Working closely with Engineers and Technical Leads, you will execute structured test plans, perform exploratory testing, identify defects, and verify that new features and fixes meet the required standards before release. You'll play a key role in ensuring our software behaves as expected in real‑world scenarios while helping us continually improve our testing practices.

We are ideally looking for a candidate who holds an active Security Clearance to join our team; however, we will consider sponsoring new clearances for candidates that meet our technical requirements.

• Execute manual and automated test plans across new and existing software products.
• Perform functional, integration, regression and exploratory testing to validate new features and identify defects.
• Record, reproduce and clearly document software issues, working closely with developers to investigate and verify fixes.
• Help develop and maintain automated test suites using tools such as Cypress or Playwright where appropriate.
• Validate software builds prior to release, ensuring acceptance criteria and quality standards have been met.
• Create and maintain clear, repeatable test cases and test documentation.
• Assist with setting up and maintaining test environments and representative test data.
• Work closely with Software Engineers throughout development, providing timely feedback on software quality.
• Participate in sprint planning, backlog refinement and feature reviews to understand requirements and identify potential test scenarios.
• Contribute ideas to improve our testing processes, tooling and automation over time.

• Experience in software testing, QA or a similar engineering role.
• Good understanding of software testing techniques, including functional, regression, integration and exploratory testing.
• Experience writing clear and repeatable test cases from user stories or requirements.
• Familiarity with defect tracking and test management tools such as Jira, Xray, Test Rail or Zephyr.
• Experience using automated testing frameworks such as Cypress or Playwright, or a willingness to develop these skills.
• Basic scripting or programming knowledge (JavaScript, Type Script, Python or similar) to support test automation.
• Familiarity with Git and modern software development workflows.
• Strong analytical and troubleshooting skills with excellent attention to detail.
• Good communication skills and the ability to work collaboratively within an agile engineering team.

• We're looking for someone who enjoys understanding how software works by putting it through its paces. You'll be naturally curious, methodical and persistent, taking satisfaction in finding issues before our customers do. While experience with automated testing is beneficial, this is primarily a hands‑on testing role where executing test plans, investigating unexpected behaviour and working closely with developers are the core responsibilities.
• This vacancy is ideal for Test Engineers with commercial experience who want to develop their technical skills in a unique delivery area while remaining closely involved in the day‑to‑day validation of software. You'll have the opportunity to contribute to automation and continuous improvement, but your primary focus will be ensuring every feature we deliver meets the high standards expected of software operating in demanding environments.

• Promotions are based on technical excellence and reviewed regularly.
• 25 days holiday per year (with bank holidays on top), option to buy up to 5 days per year.
• Level up with an extra day of holiday per year, up to an extra 5 days,…