Lead Performance Tester (SC Eligible/Cleared)

scrumconnect ltd; Staines-upon-Thames; On-site; GBP 42,000 - 65,000; Full time

Job summary

Scrumconnect Consulting in the United Kingdom is seeking a hands-on Performance Tester to design and execute performance tests for enterprise systems in cloud environments.

You will analyze results, prepare runbooks, support CI/CD, and collaborate with developers and operations to ensure scalable, reliable services.

This role focuses on hands-on test design, artefact quality, and timely delivery in a regulated or high-assurance context.

Qualifications

• 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.

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.

Skills

Performance testing

Logs & monitoring analysis

Agile/hybrid delivery

APIs/HTTP/databases

APM tools (Dynatrace/AppDynamics)

GDS familiarity

Tools

JMeter

Gatling

LoadRunner

k6

Job description

• 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

• 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 (eg 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

Our Commitment to Diversity & Inclusion At Scrumconnect Consulting, we believe that diversity drives innovation. We are committed to creating an inclusive environment where everyone is respected, valued, and supported. We actively encourage applications from women, people with disabilities, individuals from under-represented communities, and those seeking flexible working arrangements.

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.