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Senior QA Engineer
Contract Type: Initial 3-month contract (extension likely)
Start Date: ASAP
Location: Remote
Security Clearance: Active SC Clearance required
Day Rate: £450 a day inside IR35
We are seeking an experienced Senior QA Engineer to support a high-impact programme involving system integrations, data migration, and performance optimisation. This role will focus heavily on performance and integration testing across legacy and modern systems, with an emphasis on automation and test strategy.
Key Responsibilities
- Design and implement comprehensive test strategies across multiple systems
- Develop and maintain automated integration tests using Kotlin
- Conduct contract testing using Pact
- Deliver UI component and end-to-end (E2E) testing using Playwright or Cypress with TypeScript
- Lead performance testing activities, covering both UI and API layers
- Validate data migration processes, ensuring accuracy and integrity (secondary priority)
- Test complex integrations and cross-system workflows, including legacy-to-modern system interactions
- Analyse and validate data flows and state changes across systems
- Collaborate with engineering teams to ensure quality throughout the delivery lifecycle
Required Skills & Experience
- Strong experience in contract testing (Pact)
- Proven expertise in integration testing with Kotlin-based automation
- Hands-on experience with Playwright or Cypress (TypeScript) for:
- UI component testing
- End-to-end testing
- Solid background in performance testing, ideally using Gatling
- Experience testing both API and UI performance
- Strong understanding of data validation and migration testing
- Experience working with complex system integrations, including legacy-modern architectures
- Demonstrated ability to define and implement test strategies
Desirable Skills
- Experience with Gatling for performance testing
- Exposure to large-scale data migration programmes
- Familiarity with distributed systems and microservices architectures
