Overview

Join Ten10 as a Lead Software Developer in Test (Lead SDET). This permanent role is based in London with hybrid working and occasional client travel. Applicants must be eligible for SC clearance.

At Ten10, we’re transforming how businesses deliver high-quality software, and we’re looking for a Lead SDET to lead from the front—mentoring teams, guiding clients through complex challenges, and shaping testing strategies and automation.

Responsibilities

• Lead the design and implementation of robust, scalable automation solutions across multiple projects and clients.
• Mentor and coach a team of SDETs, fostering growth, upskilling, and driving best practices in testing and automation.
• Own the QA strategy on projects—setting the vision for test architecture, tooling, quality metrics, and delivery excellence.
• Engage directly with clients as a trusted advisor—understanding business needs and aligning testing approaches accordingly.
• Contribute to pre-sales and project scoping, helping shape engagements from inception through delivery.

What We’re Looking For

• Eligibility for SC clearance.
• Proven leadership in QA/testing roles, with experience guiding teams and delivering in Agile environments (SCRUM, Kanban).
• Deep expertise in test automation frameworks such as Selenium, Playwright, Cypress, or RestAssured.
• Experience with integration testing, test strategy, and test architecture at the project or program level.
• Familiarity with performance testing tools such as JMeter, Gatling, K6, or Neoload.
• Skilled in CI/CD pipeline integration (e.g., Jenkins, GitLab CI, Azure DevOps).
• Excellent stakeholder communication and ability to navigate complex client landscapes.
• Experience mentoring testers and fostering a culture of continuous learning and delivery excellence.

Bonus Points

• Previous consultancy or professional services experience.
• Hands-on experience with additional programming languages like Python, Ruby, Scala, or PHP.
• Exposure to cloud platforms and infrastructure-as-code within test environments.

What’s in It for You?

• 25 Days Annual Leave, increasing with tenure (plus buy/sell scheme).
• Matched Pension Contributions up to 5%.
• Subsidized Gym Memberships and Bike-to-Work Scheme.
• Season Ticket Loans for easier commuting.
• Flexible Hybrid Working arrangements.
• Regular Social Events—from team socials to company-wide celebrations.
• Continuous Learning—including tailored training programs and full support for certifications.

Role Details

• Seniority level: Mid-Senior level
• Employment type: Full-time
• Job function: Information Technology