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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer in Test (SDET) - **Company:** Hazelcast - **Location:** UK (Remote available) - **Experience:** Expert - **Salary:** £91,315.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Artificial Intelligence, Amazon Web Services, Computing Platforms, Automation of Tests, Unit Testing, Bash Shell, Big Data, Cloud Computing, Software Quality, Code Review, Continuous Integration, Software Debugging, Linux, Github, Spring Framework, Junit, Apache Maven, Open Source Technology, Open Web Application Security, Regression Testing, Ansible, Distributed Caching, SonarQube, Data Streaming, Systems Architecture, Test Data, Strategies of Testing, Tripwire, Java Application Server, Performance Testing, Large Language Models, Spring-boot, Test Scripts, Vert.x, Scalability Testing, Integration Tests, Kubernetes, Information Technology, Low Latency, Synopsys Black Duck, Terraform, Docker, SDET, Jenkins - **Published:** July 22, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5809167942 ## About the Role * Min. 5 years experience in a Quality Engineering role * Min. 5 years experience with Java (building test frameworks and testing Java applications) * Experience in Distributed Caching, Compute and Streaming * Experience with automation frameworks and tools (JUnit) * Experience in non-functional / quality attribute verification. * Performance benchmarking (latency and throughput) * Resilience testing (chaos and fuzzing) * Scalability testing Knowledge of following are desirable: * Demonstrated experience using AI/LLM tools, developing prompts, code, tools and automation that enhance product quality with less friction * Experience with CI/CD (Jenkins, Github Actions) * Experience with Linux and Bash * Experience with Docker, Maven, JFrog * Experience with Cloud Platforms such as AWS * Experience with Infrastructure Deployment (Docker, Kubernetes, Terraform, Ansible) * Experience with Vulnerability & Compliance Tools (SonarQube, OWASP, Trivy, Blackduck) * Experience of Big Data Storage Testing including designing and manipulating test data * Experience with development frameworks (Spring, Springboot, VertX, Quartkus) * Experience across Enterprise and Opensource solutions * Bachelor's degree in a relevant field of study (Computer Science, or related discipline) or equivalent experience. * Understanding of the QA process (Test Plans, Test Scripts & Test Completion Reports) PERSONAL QUALITIES * A passion for quality as well as for both detecting and preventing defects. * Excellent analytical and troubleshooting skills with attention to detail. * Efficient at debugging code and resolving issues quickly. * Ability to work effectively in a remote team environment, a team player who fosters collaboration. * Able to make critical decisions, able to balance quality and time ensuring products and features are released in a timely manner without compromising on critical testing. * Inquisitive, using critical thinking to ask lots of questions, overcome biases, break assumptions and consider different perspectives. * Able to plan and organise your own work. * Deep understanding of testing methodologies such as unit testing, integration testing, regression testing, and non-functional testing (Performance, load, stress, soak). * Excellent written and verbal communication skills to clearly convey complex information and collaborate with cross-functional teams ## Description We are looking for Software Engineers in Test with strong experience testing Java software platforms to work side by side with our expert Java developers. In this role, you'll tackle complex challenges, contribute to our product quality vision and play a key part in delivering reliable, high-performance software that delights our customers. * Work closely with software developers to understand the system architecture, design, and implementation to create effective test strategies. * Pay attention to code quality and software craftsmanship * Participate in code reviews, ensuring that code is designed with test automation in mind. * Participating proactively in daily standup meetings, story grooming sessions, team retrospectives, regularly reporting progress as well as suggesting and implementing improvements. * Develop detailed test plans, test scripts and test completion reports based on functional and technical specifications. * Develop, maintain, and enhance automated testing frameworks for functional and non-functional testing. * Design and execute performance, load, and stress tests to ensure the application can scale and perform under heavy traffic or resource constraints. * Integrate automated tests into the CI/CD pipeline to ensure frequent, automated validation of code changes. * Monitor the health of test suites and ensure that automated tests run successfully whilst ensuring test environment and test cases are optimized to improve system performance. * Investigate test failures and work closely with developers to diagnose and resolve defects and issues. ## Related Videos - [Excellent Software Testing](https://www.wearedevelopers.com/videos/87-excellent-software-testing) - [How Unit Testing Saved My Career](https://www.wearedevelopers.com/videos/1642-how-unit-testing-saved-my-career) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [Testing .NET applications a Tool box for every developer](https://www.wearedevelopers.com/videos/704-testing-net-applications-a-tool-box-for-every-developer) - [From boy scouting to redrawing the landscape](https://www.wearedevelopers.com/videos/1140-from-boy-scouting-to-redrawing-the-landscape) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Should senior developers refuse interview coding challenges?](https://www.wearedevelopers.com/magazine/29-should-senior-developers-refuse-interview-coding-challenges)