Job Description

Posted 4 weeks ago

Performance Tester

+6 months +
+Hybrid – London 2 days a week

+Inside IR35

+£420 – £435 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 (url removed) and I will get in touch