
Senior Performance Test Engineer
Scrumconnect Consulting • City of London, England, United Kingdom
Salary: £50,000 - £58,000 / year
Role & seniority
- Senior Performance Tester (permanent)
Stack / tools
Performance testing tools: JMeter, Gatling, LoadRunner, k6 (or equivalent)
Cloud: AWS (non-production environments)
Technologies: APIs, HTTP, databases, messaging, caching
Observability: logs and monitoring data; (desirable) APM tools (Dynatrace, AppDynamics, Elastic/Kibana/Grafana)
Delivery model: Agile/hybrid; regulated/high-assurance environments
Top 3 responsibilities
-
Design and execute load, stress, volume, soak, and scalability tests
-
Analyze performance results, logs, and metrics; identify bottlenecks; raise defects with evidence
-
Prepare/maintain performance test scripts and runbooks; support CI/CD integration; collaborate with developers, architects, platform, and operations; contribute to test reports and evidence
Must-have skills
-
Extensive hands-on performance testing of enterprise systems
-
Proficient with JMeter, Gatling, LoadRunner, or k6
-
Strong understanding of APIs, HTTP, databases, messaging, caching; distributed system performance
-
Ability to analyse logs/monitoring data; experience in Agile/hybrid delivery
-
Experience in regulated or high-assurance environments
Nice-to-haves
-
Experience with APM tools (Dynatrace, AppDynamics, Elastic/Kibana/Grafana)
-
Public sector or large programme delivery experience; familiarity with GDS
Location & work type
London, Greater London, United Kingdom (Postal: EC1A)
- Permanent, on-site/hybrid work arrangement not specified
No
Full Description
Job Information
Date Opened
29/01/2026
Job Type
Permanent
Work Experience
5+ years
Industry
Government & Public Sector
Salary
50k - 58k
City
London
Province
Greater London
Country
United Kingdom
Postal Code
EC1A
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.
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
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 .
As a Disability Confident Level 1 employer , we provide reasonable adjustments throughout the recruitment process and employment to ensure equal opportunity for all.
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