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Senior Performance Test Engineer

Scrumconnect Consulting City of London, England, United Kingdom

hybridfull-time

Salary: £50,000 - £58,000 / year

Posted Jan 30, 2026Apply by Mar 2, 2026

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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Performance TestingLoad TestingStress TestingVolume TestingSoak TestingScalability TestingJMeterGatlingLoadRunnerK6APIsHTTPDatabasesMessagingCachingCI/CD Integrationmulti-location

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