Mission freelance Performance Tester

Role Title: Performance Test Engineer
Location: Milton Keynes
Duration: 30/04/2026
Days on site: 2/week
Rate INSIDE IR35 £250 per day


Role Description:

Design and implement performance test plans and scripts for end-to-end business flows.
* Execute load tests to simulate expected user volumes and spike tests to assess system behavior under sudden traffic surges.
* Monitor system resources (CPU, memory, disk I/O) during test execution to identify bottlenecks.
* Analyse performance metrics and generate detailed reports with recommendations for optimization.
* Collaborate with development and infrastructure teams to resolve performance issues and improve system architecture.
* Establish performance benchmarks and acceptance criteria in alignment with business SLAs.
* Continuously update testing methodologies and tools to align with industry standards and project needs.
* Ability to interpret performance test results and suggest architectural improvements
* Experience with CI/CD integration and automated performance testing pipelines.
* Familiarity with cloud platforms and virtualization environments.
* Strong communication and stakeholder management skills.

* Testing Tools: Any performance tool
* Monitoring Tools: atleast exp in one
* Languages: Java, Python, SQL

Please send latest CV


LA International is a HMG approved ICT Recruitment and Project Solutions Consultancy, operating globally from the largest single site in the UK as an IT Consultancy or as an Employment Business & Agency depending upon the precise nature of the work, for security cleared jobs or non-clearance vacancies, LA International welcome applications from all sections of the community and from people with diverse experience and backgrounds.

Award Winning LA International, winner of the Recruiter Awards for Excellence, Best IT Recruitment Company, Best Public Sector Recruitment Company and overall Gold Award winner, has now secured the most prestigious business award that any business can receive, The Queens Award for Enterprise: International Trade, for the second consecutive period.