Senior Performance Tester

Job 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.

Extra information

Status

Open

Education Level

Secondary School

Location

London Area

Type of Contract

Full-time jobs

Published at

01-02-2026

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English