Software Development Engineer in Test (SDET) We''re looking for an experienced SDET to join a high-performing engineering team working on a high traffic, large-scale E-commerce platform. You''ll play a key role in building and evolving a scalable, fully automated testing framework, helping ensure fast, safe and high-quality software delivery. Working closely with engineers, product and stakeholders, you''ll drive quality across web applications and APIs while tackling interesting technical challenges. Key responsibilities include: Designing and maintaining test automation frameworks (JavaScript/TypeScript) Automated and manual testing of web applications and APIs Test planning, estimation, execution and defect management Integrating automated tests into CI/CD pipelines Collaborating across teams to improve quality and close requirement gaps About you: Proven experience in SDET or test automation roles Strong understanding of testing techniques and the SDLC Experience testing web-based systems and APIs Excellent communication skills and a continuous improvement mindset Nice to have: ISTQB certification, device testing platforms (BrowserStack/LambdaTest), performance testing tools, cloud experience (AWS/Azure/GCP), and exposure to non-functional testing (performance, security, accessibility). This is a hybrid position - Central London (2 to 3 days a week in office) £55k DOE plus 10% bonus