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Software Development Engineer in Test (SDET)

Software Development Engineer in Test (SDET)

On site

London, United kingdom

Full Time

16-12-2025

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Skills

Communication JavaScript TypeScript CI/CD Test Test Automation Defect Management Performance Testing Azure AWS Software Development SDLC Manual Testing JavaScript/TypeScript GCP CI/CD Pipelines E-commerce

Job Specifications

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)
£50k to £70k DOE plus 10% bonus

About the Company

Founded in 2000 by Marcus Freeman, ARC IT provides recruitment solutions for both contract and permanent positions across a broad range of IT and business skill sets, from graduate entry level to heads of global businesses. We have enjoyed steady growth among our loyal clients and welcome new employers every month due to our exceptional reputation in the IT recruitment industry. As well as recruiting permanent IT staff across the UK and managing a high number of contractors we also have a significant presence in Europe and... Know more