Senior Performance Tester: Cloud Load & Resilience

scrumconnect ltd; Greater London; On-site; GBP 60,000 - 80,000; Full time

Job summary

Scrumconnect Consulting seeks a Senior Performance Tester to deliver hands-on load and performance testing across large-scale digital services and back-end applications, with experience of working with cloud-based distributed services.

This delivery-focused role operates in structured environments where performance, resilience, and scalability are critical to service success, collaborating with developers, architects, and operations teams.

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.
• Experience working in regulated or high-assurance environments.
• Familiarity with Agile and hybrid delivery models.

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

Agile delivery

Hybrid delivery

Tools

JMeter

Gatling

LoadRunner

k6

Job description

Scrumconnect Consulting seeks a Senior Performance Tester to deliver hands-on load and performance testing across large-scale digital services and back-end applications, with experience of working with cloud-based distributed services.

This delivery-focused role operates in structured environments where performance, resilience, and scalability are critical to service success, collaborating with developers, architects, and operations teams.