Senior Performance Tester - Scrumconnect Consulting
Jobster • London, England, United Kingdom
Salary: 48k-55k pa
Role & seniority: Senior Performance Test Engineer (delivery-focused, hands-on)
Location & work type: UK-based, Remote or Hybrid; BPSS clearance required, SC eligible or preferred
Stack/tools: JMeter, Gatling, LoadRunner, k6 (or equivalent); APIs, HTTP, databases, messaging, caching; logs/monitoring data; cloud (AWS); CI/CD integration
Top 3 responsibilities
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Design and execute load, stress, volume, soak, and scalability tests
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Analyze performance results, logs, and metrics to identify bottlenecks; raise defects with evidence
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Prepare/maintain test scripts and runbooks; support CI/CD; collaborate with devs, architecture, platforms, and operations
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Must-have skills: Strong enterprise performance testing experience; hands-on with at least one load-testing tool (JMeter, Gatling, LoadRunner, k6); understanding of APIs, HTTP, databases, messaging, caching; knowledge of backend/distributed systems performance; experience with logs/monitoring data; familiar with Agile/hybrid delivery; experience in regulated/high-assurance environments
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Nice-to-haves: Experience with APM tools (Dynatrace, AppDynamics, Elastic/Kibana/Grafana); public-sector or large program delivery; familiarity with GDS
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Scope & accountability: Owns hands-on test design and execution; ensures quality/accuracy of artefacts; contributes analysis and recommendations but no final assurance authority; reports to Lead Performance Tester or Test Manager; accountable for timely deliv
Full Description
Senior Performance Test Engineer
Location: UK (Remote / Hybrid)
Clearance: BPSS required, SC eligible or preferred
Salary - 48k-55k pa
Role Overview
We are looking for a Senior Performance Tester to deliver hands-on load and performance testing across large-scale digital services and backend applications, with experience of working with cloud-based distributed services.
This is a technical, delivery-focused role operating in structured and governed environments where performance, resilience, and scalability are critical to service success.
Key Responsibilities
Design and execute load, stress, volume, soak, and scalability tests Analyse performance results, logs, and system metrics to identify bottlenecks Gather and Validate performance NFRs, volumetrics, and capacity assumptions Prepare and maintain performance test scripts and execution runbooks Execute tests in cloud-hosted (AWS) non-production environments Raise performance defects with clear technical evidence Support CI/CD integration for performance testing where required Contribute to test reports, defect triage, and test completion evidence Work closely with developers, architects, platform, and operations teams
Essential Skills & Experience
Strong experience in performance testing of enterprise systems Hands-on delivery using tools such as JMeter, Gatling, LoadRunner, k6 (or equivalent)
Solid understanding of
- APIs, HTTP, databases, messaging, caching
- Backend and distributed system performance characteristics
- Experience analysing logs and monitoring data
- Familiarity with Agile and hybrid delivery models
- Experience working in regulated or high-assurance environments
Desirable
Experience with APM tools (e.g. Dynatrace, AppDynamics, Elastic Search with Kibana/Grafana across digital services) Public-sector or large programme delivery experience Familiarity with GDS
Scope & Accountability
Responsible for hands-on performance test design and execution Owns quality and accuracy of assigned test artefacts and results Contributes analysis and recommendations but does not hold final assurance authority Works under the direction of a Lead Performance Tester or Test Manager Accountable for timely delivery of agreed performance testing activities
About Scrumconnect Consulting
Scrumconnect Consulting is a multi-award-winning digital consultancy, recognised for delivering impactful technology solutions across UK government departments. Our work has positively influenced the lives of over 40 million UK citizens. With a strong commitment to user-centred design and agile delivery, and more to deliver innovative digital services that matter.
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