> Markdown version of [/jobs/ext/2688807-performance-tester-security-cleared-or-previously-held-sc](https://www.wearedevelopers.com/jobs/ext/2688807-performance-tester-security-cleared-or-previously-held-sc). 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). --- # Performance Tester - (Security Cleared Or Previously Held SC) - **Company:** Solirius Limited - **Location:** London, UK - **Salary:** £50,150.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Microsoft Azure, Disaster Recovery, HP Loadrunner, Apache JMeter, Performance Testing, Gatling, Api Management - **Published:** September 3, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5867414474 ## About the Role You are a motivated and adaptable professional with a strong analytical mindset and a passion for using technology to solve real-world problems. You enjoy working in collaborative, agile teams and take pride in delivering high-quality solutions that make a tangible impact. With strong communication skills and a consultative approach, you're comfortable engaging with clients, understanding their needs, and translating them into effective outcomes. You understand and align with Solirius Reply Values The Role: We are looking for experienced Non Functional Test Engineers with demonstrable experience in Performance Testing and Non Functional Testing to join us on a permanent basis and assist with the running of our performance testing projects. You will be involved in overall NFT as well as API testing, Front End testing and UI based performance testing on behalf of both our public and private sector clients. Those not from a performance testing background, or without demonstrable experience in performance testing, will not be considered for this role., * Experience of working as a performance tester/engineer on previous roles * Working on multiple projects at the same time and able to manage time effectively. * Experience of developing, executing and maintaining performance test scripts, ideally using Gatling (preferred), Jmeter or LoadRunner. * Good interpersonal skills and experience of working with client teams or third parties. * Experience in others Areas of NFT such as Accessibility, Compatibility, Usability, Disaster Recovery etc would be beneficial * Excellent communication skills, both written and spoken, with an ability to successfully engage with team members and clients ## Description * Working on a variety of performance testing projects covering API, Front End, and UI based performance testing * Gathering performance test requirements through project and client engagement meetings and reviewing NFRs * Developing performance test scripts * Executing and reporting on performance tests to technical and business stakeholders * Highlighting any performance test failures against NFRs * Performance testing against Azure infrastructure * Carrying out performance test analysis * Perform analysis of NFRs to ensure they are clear and testable * Ensure any issues or risks are clearly communicated to relevant stakeholders in a timely manner ## Related Videos - [Continuous testing - run automated tests for every change!](https://www.wearedevelopers.com/videos/190-continuous-testing-run-automated-tests-for-every-change) - [Frontend Performance Testing in practice](https://www.wearedevelopers.com/videos/8-frontend-performance-testing-in-practice) - [How to Benchmark Your Apache Kafka](https://www.wearedevelopers.com/videos/76-how-to-benchmark-your-apache-kafka) - [Load Testing AI: Aiming at a Moving Target](https://www.wearedevelopers.com/videos/1914-load-testing-ai-aiming-at-a-moving-target) - [Java 21: The Revolution of Virtual Threads - A Deep Dive](https://www.wearedevelopers.com/videos/843-java-21-the-revolution-of-virtual-threads-a-deep-dive) - [Measure and improve frontend performance by using test automation](https://www.wearedevelopers.com/videos/719-measure-and-improve-frontend-performance-by-using-test-automation) ## Related Articles - [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools) - [Benefits of Using JMeter For Performance Testing](https://www.wearedevelopers.com/magazine/96-benefits-of-using-jmeter-for-performance-testing) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk)