Lead Performance Engineer - Large-Scale Systems - Flexible

scrumconnect ltd; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Scrumconnect Consulting is seeking a Lead Performance Tester/Performance Engineering Lead to own performance testing strategy across complex digital services. You will act as the performance authority, defining strategy, leading delivery, and advising on production readiness.

We expect extensive experience in performance testing for large-scale systems, a strong engineering background, and the ability to make architectural recommendations. AWS experience and stakeholder engagement are essential.

Qualifications

• Extensive experience leading performance testing for large-scale systems.
• Strong background in performance engineering, not just tool execution.
• Proven ability to make design and architectural recommendations.
• Experience with cloud platforms (especially AWS).
• Deep understanding of distributed systems, microservice architecture, scalability, resilience and capacity planning.
• Confident stakeholder engagement at technical and leadership levels.
• Experience operating in governed or regulated environments.

Responsibilities

• Own the performance testing strategy for assigned services or programmes.
• Lead volumetric analysis, performance risk assessment and test scoping.
• Define entry/exit criteria, success measures and acceptance recommendations.
• Provide performance engineering expertise, including architectural input.
• Lead and coordinate load, stress, soak and scalability testing activities.
• Oversee integration of performance testing into CI/CD pipelines.
• Analyze results and lead root-cause analysis of systemic performance issues.
• Produce and sign off Test Completion Reports and readiness assessments.
• Engage with senior stakeholders, architects and governance forums.
• Support Operational Acceptance Testing (OAT) and live readiness.
• Drive continuous improvement, innovation and best practices in performance.

Skills

Performance testing leadership

Performance engineering

Design/architectural recommendations

AWS

Distributed systems

Microservice architecture

Scalability & capacity planning

Stakeholder engagement

Governed environments

Job description

Scrumconnect Consulting is seeking a Lead Performance Tester/Performance Engineering Lead to own performance testing strategy across complex digital services. You will act as the performance authority, defining strategy, leading delivery, and advising on production readiness.

We expect extensive experience in performance testing for large-scale systems, a strong engineering background, and the ability to make architectural recommendations. AWS experience and stakeholder engagement are essential.