We are looking for a senior SDET You'll join the Mobile Platform team and own the testing strategy across this ecosystem: setting the standards,.
patterns, and guardrails that every micro-app team follows. This is primarily a strategy and enablement role, not a ticket-writing one.
What You'll Do
1. Design and implement a mobile testing maturity framework across unit, component, integration, and E2E layers — covering both the shell app and micro-app boundaries
2. Define the testing contracts and quality standards that micro-app SDETs are expected to implement
3. Evaluate and evolve our E2E approach with Appium across a brownfield codebase during the React Native transition
4. Contribute hands-on to test tooling, infrastructure, and CI/CD integration
5. Mentor SDETs embedded in micro-app teams and champion a quality-first engineering culture
6. Define and track quality metrics that give leadership meaningful visibility into coverage, stability, and risk
What We're Looking For
7. senior SDET with strong React Native experience
8. Proven ability to define a mobile testing strategy from a low baseline — you've built this, not just inherited it
9. Deep understanding of the full mobile test pyramid: unit, component (RNTL), integration, and E2E (Appium or equivalent)
10. React Native and TypeScript proficiency — you can read and write production-quality mobile code
11. experience with CI/CD pipelines (we use GitLab CI, transitioning to Harness and GitHub Actions)
12. Ability to set technical direction and influence across teams without direct authority
13. experience with brownfield codebases and/or native-to-cross-platform transitions
Nice to Have
14. Familiarity with module federation,, or federated app architectures
15. Exposure to iOS and Android development toolchains
16. Knowledge of visual regression or snapshot testing tooling
The Stack
React Native · TypeScript · Jest
· React Native Testing Library · Appium · GitLab CI · Harness · GitHub Actions
· Monorepo
Job Title: Senior SDET
Location: London, UK
Job Type: Permanent
Trading as TEKsystems. Allegis Group Limited, Maxis 2, Western Road, Bracknell, RG12 1RT, United Kingdom. No. 2876353. Allegis Group Limited operates as an Employment Business and Employment Agency as set out in the Conduct of Employment Agencies and Employment Businesses Regulations 2003. TEKsystems is a company within the Allegis Group network of companies (collectively referred to as "Allegis Group"). Aerotek, Aston Carter, EASi, Talentis Solutions, TEKsystems, Stamford Consultants and The Stamford Group are Allegis Group brands.