Senior Performance Tester: Drive Cloud System Performance

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

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