Principal Performance Tester - Shape & Lead Performance Engineering We're recruiting for a Principal Performance Tester to help establish and grow a performance testing capability at a fast-scaling tech business in the payments space. You'll drive strategy, design environments, and ensure systems meet demanding performance and scalability needs. The role: Define and deliver performance testing strategy (load, stress, soak). Design, build, and optimise performance test environments. Lead performance testing across APIs, web apps, and databases. Provide insight on risks, bottlenecks, and tuning opportunities. Guide and mentor teams, driving best practices and a shift-left approach. What we're looking for: 8-10 years' experience in performance testing enterprise systems. Significant leadership in quality/performance engineering. Hands-on expertise with tools (JMeter, BlazeMeter, K6, Kibana, CloudFlare). Experience with modern DevOps and infrastructure-as-code tooling. Skilled in replica environment design, NFR elicitation, and performance tuning. Strong communicator and technical leader. What next? Get in touch with Jordan Burns at VANRATH to learn more or apply today with your CV. RECENT TESTIMONIAL: "I would highly recommend working with Jordan Burns. Jordan was extremely friendly, approachable, contactable, and worked very efficiently in helping to secure me a role in Software Development whilst ensuring that the role was a good match. Throughout the application process, Jordan provided excellent advice and support with regular phone calls, guidance on how best to prepare for an interview, and great feedback. Jordan provided excellent service and I would strongly recommend Jordan to anyone looking for a new role within the IT industry." Skills: JMeter BlazeMeter K6 Kibana datadog Benefits: Work From Home