Performance Tester
Posted Today by 1770368566
£430 Per day
Inside
Remote
London
Summary: The Performance Tester role involves ensuring that systems are scalable, reliable, and meet performance targets for critical digital services. The position requires validating system behavior under load and providing actionable insights to improve performance. The role is remote and classified as inside IR35, with a daily rate of £420 - £430.
Key Responsibilities:
- Design, build, and execute performance, load, and stress tests across complex systems
- Analyse test results and produce clear reports highlighting risks, constraints, and improvement actions
- Work closely with developers, architects, and delivery teams to validate fixes and optimise performance
- Contribute to performance test strategies and best practices
- Support continuous improvement of tooling, approaches, and reporting
Key Skills:
- Proven experience in performance testing within modern digital environments
- Strong hands-on experience with tools such as JMeter, Gatling, Azure Load Testing or similar cloud-based load testing platforms
- Solid understanding of performance metrics (throughput, latency, response times, error rates, etc.)
- Experience analysing results and communicating findings clearly to both technical and non-technical stakeholders
- Comfortable working in agile delivery teams
Salary (Rate): £430 daily
City: London
Country: United Kingdom
Working Arrangements: remote
IR35 Status: inside IR35
Seniority Level: undetermined
Industry: IT
Performance Tester
+6 months +
+Remote working
+Inside IR35
+£420 - £430 a day
We are seeking an experienced Performance Tester to help ensure our systems are scalable, reliable, and meet agreed performance targets across business-critical digital services.
You will play a key role in validating system behaviour under load, identifying bottlenecks, and providing clear, actionable insight to delivery teams to drive performance improvements.
Key Responsibilities
Design, build, and execute performance, load, and stress tests across complex systems
Analyse test results and produce clear reports highlighting risks, constraints, and improvement actions
Work closely with developers, architects, and delivery teams to validate fixes and optimise performance
Contribute to performance test strategies and best practices
Support continuous improvement of tooling, approaches, and reporting
Essential Skills & Experience
Proven experience in performance testing within modern digital environments
Strong hands-on experience with tools such as:
JMeter
Gatling
Azure Load Testing or similar cloud-based load testing platforms
Solid understanding of performance metrics (throughput, latency, response times, error rates, etc.)
Experience analysing results and communicating findings clearly to both technical and non-technical stakeholders
Comfortable working in agile delivery teams
Desirable
Experience integrating performance testing into CI/CD pipelines
Cloud platform experience (Azure preferred)
Background in performance engineering or non-functional testing strategies
If you'd like to discuss this Performance Tester in more detail, please send your updated CV to chloe.manerowski@cbsbutler.com and I will get in touch.
