Senior Performance Tester (SC Eligible/ Cleared)

Scrumconnect Consulting; Staines-upon-Thames; On-site; GBP 65,000 - 90,000; Full time

Job summary

Scrumconnect Consulting in the United Kingdom is seeking a Senior Performance Tester to run hands-on load and performance tests across large-scale digital services and backend apps, with cloud-based distributed services experience. This technical, delivery-focused role operates in governed environments where performance, resilience and scalability are critical to service success.

Design and execute tests in cloud-hosted (AWS) non-production environments, analyse results, raise defects with clear

Qualifications

• Experience in performance testing of enterprise systems.
• Hands-on delivery with JMeter, Gatling, LoadRunner or k6.
• Knowledge of APIs, HTTP, databases, messaging, caching.
• Experience analysing logs and monitoring data.
• Familiarity with Agile and hybrid delivery models.
• Experience in regulated or high‑assurance environments.

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

APIs & HTTP concepts

Logs & metrics analysis

Agile & hybrid delivery

Regulated environments

Cloud-based testing

Tools

JMeter

Gatling

LoadRunner

k6

Job description

Job Description

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, we aim 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.