> Markdown version of [/jobs/ext/3765093-senior-software-test-engineer-sdet-london-contract](https://www.wearedevelopers.com/jobs/ext/3765093-senior-software-test-engineer-sdet-london-contract). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Test Engineer (SDET) - London - Contract - **Company:** Bond Williams Professional Recruitment - **Location:** London, UK - **Experience:** Expert - **Salary:** £130,000.0 - £156,000.0 - **Contract:** Temporary to permanent - **Skills:** Testing (Software), Java (Programming Language), Agile Methodology, Automation of Tests, Microsoft Azure, C Sharp (Programming Language), Continuous Integration, Python (Programming Language), Regression Testing, Software Engineering, Git, Meditech, SDET, Jenkins - **Published:** October 16, 2026 - **Apply:** https://www.reed.co.uk/jobs/senior-software-test-engineer-sdet-london-contract/57466787 ## About the Role Join a growing software team developing technology that supports cutting-edge scientific innovation. We're looking for a Senior Software Test Engineer (not a QA Tester) 6 month contract (outside IR35) with strong experience in test automation, software engineering and CI/CD environments. As Senior Software Test Engineer Experience Reuired: * Experience as a Software Test Engineer, SDET or Automation Test Engineer * Strong Python, C# or Java skills * Experience building and maintaining automated test frameworks * Integration, system and regression testing experience * Experience working closely with software developers in Agile teams * CI/CD, Git, Azure DevOps, Jenkins or similar tools Ideal backgrounds: Scientific instrumentation, biotech, medtech, robotics, aerospace, defence, telecoms or software product companies. This is a hands-on engineering role focused on automating quality, not a traditional manual QA position.