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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Test Engineer - **Company:** Stealth It - **Location:** Nottingham, UK (Remote available) - **Experience:** Expert - **Salary:** £119,080.0 - **Contract:** Temporary contract - **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Data Analysis, Automation of Tests, Microsoft Azure, Data Validation, Github, Interoperability, Apache JMeter, Open Source Technology, Systems Integration, Performance Testing, Postman, Sql Optimization, Cypress (Programming Language), Data Strategy, Playwright, Data Management, Selenium Webdriver, Api Management, Jenkins - **Published:** August 24, 2026 - **Apply:** https://www.totaljobs.com/job/senior-test-engineer/stealth-it-consulting-limited-job107891581 ## About the Role * Experience and skills in Semarchy XDM and SDP * Strong experience testing Master Data Management (MDM) solutions, ideally Semarchy * Advanced SQL and data analysis skills * Experience validating data migrations and data loads * Integration and API testing * Functional and non-functional testing * Ability to develop and maintain automated test suites ## Description A major government delivery programme is transforming services across a public sector body, requiring skilled engineers to master data across current and new systems using Semarchy, the organisation's chosen MDM tool. The Senior Test Engineer will lead quality assurance activities for the Semarchy MDM platform, validating data models, migrations, governance controls, APIs and integrations, and ensuring mastered property, customer and trade datasets meet requirements before deployment to user testing environments. The successful candidate will work alongside architecture colleagues and service teams to help inform and set data strategy as well as delivering hands-on testing work., * Define, own, and communicate test strategies aligned to delivery, business risk, and government service standards * Select and tailor test approaches (manual, automated, exploratory, risk-based) appropriate to complex systems and integrations * Provide authoritative advice on test scope, entry/exit criteria, and quality risks to delivery and product leadership * Balance pragmatism with assurance, ensuring proportionate testing within Agile delivery constraints * Lead the design and evolution of automated test frameworks (UI, API, or service-level) * Define what should and should not be automated, considering value, maintainability, and risk * Integrate automated tests into CI/CD pipelines and advise teams on improving feedback cycles * Evaluate and recommend testing tools, frameworks, and practices to improve effectiveness and efficiency * Plan, build and execute non-functional testing activities, including performance, accessibility, security, resilience, and interoperability * Work collaboratively with specialists and suppliers to ensure appropriate coverage where tooling or expertise is shared * Interpret test results and articulate business and user impact, not just technical outcomes * Ensure NFT evidence is sufficient to support confident release decisions Tech Stack: * Test automation using JavaScript-based frameworks such as WebdriverIO, Playwright or Cypress * Open-source JS-based libraries/frameworks for API testing, or Postman * JMeter or K6 for load and performance testing * CI/CD pipelines using Jenkins and AWS, or ADO in Azure * GitHub * Exploratory test techniques to focus testing on areas of greatest risk ## Related Videos - [Are Your APIs Ready for AI Agents](https://www.wearedevelopers.com/videos/2004-are-your-apis-ready-for-ai-agents) - [The Road to MLOps: How Verivox Transitioned to AWS](https://www.wearedevelopers.com/videos/1050-the-road-to-mlops-how-verivox-transitioned-to-aws) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [SMART Test Automation - the experience of legacy transformation](https://www.wearedevelopers.com/videos/100215-smart-test-automation-the-experience-of-legacy-transformation) - [Our GitOps approach for deploying an Identity Provider and an API Gateway in a SaaS company](https://www.wearedevelopers.com/videos/776-our-gitops-approach-for-deploying-an-identity-provider-and-an-api-gateway-in-a-saas-company) - [Testing .NET applications a Tool box for every developer](https://www.wearedevelopers.com/videos/704-testing-net-applications-a-tool-box-for-every-developer) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 119 - ❤️ === ❤️](https://www.wearedevelopers.com/magazine/454-dev-digest-119) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 139 - Soft and hard queries](https://www.wearedevelopers.com/magazine/487-dev-digest-139-soft-and-hard-queries)