Non-Functional Test Analyst

NON-FUNCTIONAL TEST ANALYST (Mid-level)

• Hybrid: 3-day onsite
• Location: London
• Job Type: Contract inside IR 35

About the client: World-leading industrial commodity trading over 100 years, with modern technology infrastructure supporting billions in daily trading volume, and requires exceptional performance and reliability to maintain their position as a global market leader

About you: An experienced Non-Functional Test Engineer to join the pre-trade technology team. This critical role will ensure our trading platforms and systems maintain the highest standards of performance, reliability, and scalability needed to support global metal trading operations. The successful candidate will help safeguard the stability of our systems through rigorous performance testing methodologies.

Key Responsibilities

• Drive end-to-end non-functional testing processes, including requirements analysis and load modelling
• Collaborate with business stakeholders to establish performance benchmarks and success criteria
• Report progress and results to the Non-Functional Test Lead
• Create comprehensive performance evaluation reports with actionable insights
• Design and develop automated and manual performance test scripts aligned with documented approaches
• Execute performance tests according to established test plans and document any deviations
• Generate appropriate test data for load testing scenarios
• Document and report defects discovered during testing cycles
• Conduct retesting of resolved issues to verify fixes
• Collect and analyze test results, providing interpretation of how applications may perform in production
• Work cross-functionally with technical leads, infrastructure teams, and developers to resolve performance bottlenecks
• Assist in application tuning and optimization based on test findings

Qualifications & Experience

• Strong experience with JMeter (Java plugin development knowledge a plus) and HP LoadRunner
• Ability to build test harnesses for various protocols including FIX, TCP-based binary messages, HTTP, and WebSockets
• Proficiency in analyzing system metrics including CPU utilization, memory consumption, and Java heap analysis
• Expertise in performance, capacity, and stress testing methodologies
• Working knowledge of both Windows and Linux operating systems, with Linux performance tuning experience
• Understanding of relational databases (MS-SQL Server, MySQL) and web servers (IIS)
• Experience monitoring performance across operating systems, databases, and web servers

To be considered, please ensure you complete your application on the Computappoint website. Services offered by Computappoint Limited are those of an Employment Business and/or Employment Agency in relation to this vacancy