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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Developer in Test - UK Security Clearance eligibility required - **Company:** Appvia - **Location:** London, UK - **Experience:** Expert - **Salary:** £70,000.0 - £80,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), Artificial Intelligence, Automation of Tests, Junit, Systems Development Life Cycle, Mockito, Selenium, User Interface Testing, Web Application Frameworks, ReactJS, ReadyAPI, Reliability of Systems, SC Clearance, Kubernetes, Playwright, Cucumber (Software), Docker - **Published:** September 17, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5886278994 ## About the Role You must be eligible for UK Government Security Clearance (SC): + British Passport or ILR + Resided in the UK for the last 5 years + No criminal record or financial irregularities Requirements About You You are a senior test engineer who thinks like a developer and understands how quality should be engineered into modern systems, not tested at the end. You will bring: + Strong experience testing Java and React applications + Deep knowledge of automated UI testing and modern frameworks + Experience designing test architecture and strategy, not just writing tests + Strong understanding of BDD and collaboration with development teams + Hands-on experience with contract testing (e.g. Pact) + Experience modernising legacy testing approaches and tooling + Interest or experience in AI-assisted testing to improve coverage and efficiency + Confidence working in client-facing, consultative environments ## Description We are hiring for Senior Software Developers in Test (React/Java) to join a growing Solutions Engineering team, supporting a large-scale modernisation and AI-enabled transformation programme. This is a hands-on, client-facing role focused on transforming how testing and quality engineering is approached within complex systems. You will help move teams away from slow, brittle end-to-end testing towards modern, scalable approaches across integration, functional, and contract testing. Working within a greenfield approach inside a brownfield environment, you will introduce modern tooling, improve developer feedback loops, and embed quality earlier in the software delivery lifecycle. You will report into a Principal Software Engineer and act as a senior quality engineering voice within delivery teams. Interview Process - 3 Stage + Discovery conversation with Talent Acquisition + Technical Interview with Engineering Team + Final Interview with Leadership, + Design and implement modern automated testing strategies for Java and React applications. + Migrate legacy test suites to modern frameworks such as Playwright + Reduce reliance on slow end-to-end tests by introducing integration, functional, and contract testing + Implement and promote contract testing practices to improve system reliability + Embed quality earlier in the delivery lifecycle by working closely with developers + Introduce AI-assisted testing techniques to improve speed, coverage, and quality + Act as a quality advocate and testing authority within delivery teams + Drive improvements in developer feedback loops and testing standards Technical Skills Core technologies: + Java + React + Playwright + Cucumber + Selenium + JUnit / Mockito + REST-assured + Jest + Pact Nice to have: + Experience with modern CI/CD pipelines + Exposure to containerised environments (Docker / Kubernetes) + Experience working in regulated or large-scale environments Benefits Why join Appvia? We are a self-funded, London-based consultancy, growing rapidly while staying true to what got us here: a human, engineering-led culture built on trust, ownership, and getting things done. As we scale, we're maturing as a business and expanding into new areas across platform engineering, software, data, and AI. We're intentional about keeping our culture at the heart of it. We operate with a flat structure, agile ways of working, and a strong focus on collaboration, where good ideas come from anywhere and people are trusted to make an impact. We work alongside our customers to solve complex, real-world problems: modernising systems, improving delivery, and building scalable platforms that enable long-term success. If you want to be part of a team that values people as much as technology and gives you the space to grow while working on meaningful challenges, Appvia is the place to do it. ## Related Videos - [Test-Driven Development: It's easier than you think!](https://www.wearedevelopers.com/videos/1598-test-driven-development-it-s-easier-than-you-think) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [ChatGPT and Java: A Match Made in Heaven or Hell?](https://www.wearedevelopers.com/videos/536-chatgpt-and-java-a-match-made-in-heaven-or-hell) - [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) - [From boy scouting to redrawing the landscape](https://www.wearedevelopers.com/videos/1140-from-boy-scouting-to-redrawing-the-landscape) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)