Lead Performance Test Engineer

Scrumconnect Limited; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Scrumconnect Consulting in London is seeking a Lead Performance Tester / Performance Engineering Lead to provide end-to-end ownership of performance testing and performance assurance across complex digital services. This role acts as the performance authority, accountable for defining strategy, leading delivery, and providing formal recommendations on production readiness.

You will own the performance testing strategy, lead volumetric analysis and load testing, define entry/exit criteria,

Qualifications

• Extensive experience leading performance testing for large-scale systems.

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.
• Analyse 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 and best practices in performance.
• 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, scalability, resilience, and capacity planning.
• Confident stakeholder engagement at technical and leadership levels.
• Experience operating in governed or regulated environments.
• Public-sector or government programme experience.
• Experience with APM, monitoring, observability, or AI-assisted analysis.
• Familiarity with GDS or enterprise assurance frameworks

Skills

Leadership

Performance testing

Performance engineering

CI/CD

AWS

Stakeholder engagement

Governance

Tools

APM tools

Monitoring/observability

Job description

London, United Kingdom | Posted on 29/01/2026

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.

Role Overview

We are seeking a Lead Performance Tester / Performance Engineering Lead to provide end-to-end ownership of performance testing and performance assurance across complex digital services.

This role acts as the performance authority , accountable for defining strategy, leading delivery, and providing formal recommendations on production readiness.

Key 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

Analyse 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

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

Scalability, resilience, and capacity planning

Confident stakeholder engagement at technical and leadership levels

Experience operating in governed or regulated environments

Public-sector or government programme experience

Experience with APM, monitoring, observability, or AI-assisted analysis

Familiarity with GDS or enterprise assurance frameworks

Scope & Accountability

Accountable for end-to-end performance testing outcomes

Owns performance risk, strategy, and assurance for assigned services

Provides formal recommendations on test exit and production readiness

Leads and mentors performance testers across engagements

Acts as the senior escalation point for performance-related issues

Represents performance capability in governance and assurance forums

Our Commitment to Diversity & Inclusion

At Scrumconnect Consulting, we believe thatdiversity drives innovation. We are committed to creating an inclusive environment where everyone is respected, valued, and supported. We actively encourage applications fromwomen, people with disabilities, individuals from underrepresented communities, and those seekingflexible working arrangements.

As aDisability Confident Level 1 employer, we provide reasonable adjustments throughout the recruitment process and employment to ensure equal opportunity for all.