Summary: The Non-Functional Test Analyst role is a mid-level contract position based in London, focusing on ensuring the performance, reliability, and scalability of trading platforms for a leading industrial commodity trading firm. The successful candidate will engage in rigorous performance testing methodologies to maintain system stability and support global operations. This hybrid role requires collaboration with various stakeholders and the execution of comprehensive testing processes. The position is classified as inside IR35.

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

Key Skills:

• 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 analysing 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

Salary (Rate): undetermined

City: London

Country: UK

Working Arrangements: hybrid

IR35 Status: inside IR35

Seniority Level: Mid-Level

Industry: IT