Lead QA Engineer (Contract) UK Remote | Outside IR35 | £375/day |

Lead QA Engineer (Contract) UK Remote | Outside IR35 | £375/day |

Posted 1 day ago by 9NEXUS

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£375 Per day
Outside
Remote
United Kingdom
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Amazon Web Services (AWS) API Gateway Application Programming Interface (API) Artificial Intelligence Automation Performance Testing Test Strategy Test Suite

Summary: The Lead QA Engineer will be responsible for overseeing the quality assurance process for an AI-enabled clinical platform, focusing on test strategy, automation, and assurance across various components. This hands-on role requires expertise in validating data, APIs, and AI outputs while leading accessibility and performance testing. The position is contract-based and offers a remote working arrangement. The role is classified as outside IR35.

Key Responsibilities:

  • Own and deliver the end-to-end test strategy for the MVP (functional, integration, regression, non-functional)
  • Validate semantic data, graph queries, and APIs (Neptune, SPARQL/Gremlin)
  • Test AI/RAG outputs and human-in-the-loop feedback workflows
  • Build and maintain automated test suites (Playwright, Cypress, or similar) within CI/CD
  • Lead accessibility (WCAG 2.2 AA) and performance testing for serverless AWS systems

Key Skills:

  • 5+ years’ experience in Lead QA / Test Lead roles
  • Strong automation experience using JavaScript/TypeScript or Python
  • Experience testing AWS-based systems (Lambda, API Gateway, APIs)
  • Comfortable being the sole QA on complex, fast-moving projects

Salary (Rate): £375/day

City: undetermined

Country: United Kingdom

Working Arrangements: remote

IR35 Status: outside IR35

Seniority Level: undetermined

Industry: IT

Detailed Description From Employer:

We’re looking for an experienced Lead QA Engineer to own end-to-end quality for an AI-enabled clinical platform. This is a hands-on role responsible for test strategy, automation, and assurance across APIs, data, AI outputs, and accessibility.

Key Responsibilities

  • Own and deliver the end-to-end test strategy for the MVP (functional, integration, regression, non-functional)
  • Validate semantic data, graph queries, and APIs (Neptune, SPARQL/Gremlin)
  • Test AI/RAG outputs and human-in-the-loop feedback workflows
  • Build and maintain automated test suites (Playwright, Cypress, or similar) within CI/CD
  • Lead accessibility (WCAG 2.2 AA) and performance testing for serverless AWS systems

Required Skills

  • 5+ years’ experience in Lead QA / Test Lead roles
  • Strong automation experience using JavaScript/TypeScript or Python
  • Experience testing AWS-based systems (Lambda, API Gateway, APIs)
  • Comfortable being the sole QA on complex, fast-moving projects
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