Performance Engineer

Salary: £36,000 - 76,000 per year

Requirements

• Strong hands-on experience in performance engineering within cloud-native environments
• Experience building and maintaining performance frameworks, not just executing tests
• Strong coding capability in C# / .NET
• Experience with performance testing tools such as Gatling, k6, JMeter, or similar
• Strong understanding of observability and telemetry
• Experience with tools such as OpenTelemetry, Splunk, Prometheus, Grafana, Kibana, or similar
• Nice to Have: Experience with AI-assisted engineering workflows
• Nice to Have: Exposure to agentic AI or automation tooling
• Nice to Have: Experience building telemetry analysis workflows
• Nice to Have: Experience improving automated reporting and anomaly detection
• Nice to Have: Experience with relational and NoSQL databases

Responsibilities

• Own and drive the end-to-end performance engineering strategy across multiple product teams
• Build, maintain, and enhance internal performance testing frameworks and tooling
• Design and implement load, stress, soak, and browser/API performance testing strategies
• Troubleshoot performance bottlenecks using logs, metrics, and distributed tracing
• Support production incident analysis and root cause investigations
• Coach and mentor engineering teams on performance engineering best practices
• Improve observability capabilities across distributed systems
• Integrate performance testing into CI/CD pipelines and shift-left engineering practices

Technologies

• AI
• API
• C#
• CI/CD
• Cloud
• Grafana
• Support
• JMeter
• Kibana
• NoSQL
• OpenTelemetry
• Prometheus
• Splunk
• ASP.NET

More

We are partnering with a leading global digital organization as it continues to evolve its digital platforms and scale its technology capabilities to support growing customer and commercial demand. This is a high-impact contract opportunity for a hands-on engineer who combines deep technical capability with the ability to enable and coach multiple engineering teams. Youll act as the central performance engineering specialist across multiple product teams, helping to embed performance best practices into the engineering lifecycle while owning and evolving an internal performance platform.

last updated 23 week of 2026