Job Description

Performance Test Engineering Consultant - Join Ten10's Expert Consultancy Team
Location: Hybrid (London office + client site travel as required)
Employment Type: Fixed Term Contract
Start Date: February 2026
The Opportunity
Are you an experienced SDET with Performance Test experience looking to take the next step in your career within a dynamic and growing consultancy? At Ten10, we are looking for talented SDETs with Performance Test Engineering experience to join our highly skilled consultancy team. This is an exciting opportunity to work on diverse and challenging client projects, ensuring the delivery of high-performing applications and systems.
About Ten10
Ten10 is the UK's leading independent Quality Engineering & Software Testing consultancy. We work with a range of clients across multiple sectors, providing innovative solutions to help them deliver better software, faster. Our consultants are at the heart of what we do, and we invest in their development to ensure they remain at the forefront of industry trends.
Role Responsibilities

• Deliver performance testing solutions to a range of clients, ensuring systems are scalable, reliable, and performant.
• Design, implement, and execute performance test strategies, including load, stress, scalability, and endurance testing.
• Work closely with technical teams and stakeholders, translating business requirements into testable solutions.
• Contribute to functional test automation (e.g., using Selenium, Cypress, Playwright) and ensure alignment between functional and non-functional testing efforts.
• Adopt a "shift-left" approach by designing and implementing performance tests at the API, component, and integration levels, not just at the UI/E2E level.
• Engage directly with clients, providing expert advice on performance test best practices.
• Collaborate with development, DevOps, and infrastructure teams to identify performance bottlenecks and optimise system performance.
• Utilise performance testing tools such as JMeter, K6, LoadRunner, NeoLoad, or Gatling.
• Provide insights and recommendations based on test results to drive continuous improvements.

What We're Looking For

• SDET with experience as a Performance Tester, ideally in a consultancy or client-facing environment.
• Proficiency in at least one object-oriented programming language (e.g., Java, Python, C#, or JavaScript/TypeScript) for writing clean, maintainable test code and frameworks.
• Strong knowledge of performance testing methodologies, tools, and scripting. But equally happy with functional test automation
• Ability to engage with customers, technical teams, and stakeholders to deliver meaningful outcomes.
• Experience in cloud-based and distributed system performance testing.
• A true "engineer in test" mindset: able to build custom tools, write high-quality test code, and participate in technical design and code reviews.
• Knowledge of monitoring and diagnostics tools such as AppDynamics, Dynatrace, Datadog or New Relic.
• Strong analytical and problem-solving skills, with a keen eye for detail.
• Demonstrable experience in building E2E functional automation frameworks in addition to a primary focus on performance testing.

Apply Now
If you're a skilled SDET with strong Performance Test experience looking to make an impact within a leading consultancy, we'd love to hear from you. Apply today to join Ten10's expert team!
For more details, please get in touch with our recruitment team.

Skills Required