Senior Test Analyst; API & Integration Testing

Senior Test Analyst (API & Integration Testing) - Contract

Location: Milton Keynes x2-3 days per week onsite
Rate: £390-£400 per day
Contract: Outside IR35

Our customer, a leading automotive organisation, is seeking an experienced Senior Test Analyst to support a major transformation programme involving complex system integrations, data migration activities and API-driven applications.

Working within a fast-paced delivery environment, you will play a key role in ensuring the quality, reliability and performance of business-critical systems. You will be responsible for designing and executing comprehensive test strategies, validating data migration activities and ensuring seamless integration across multiple internal and third-party platforms.

This is a hands‑on role requiring strong experience across API testing, manual testing and integration testing. You will work closely with business stakeholders, developers, architects and project teams to ensure solutions are delivered to the highest quality standards and support successful programme delivery.

This is an excellent opportunity to join a market‑leading automotive business and contribute to a high‑profile transformation initiative.

• Strong commercial experience in API Testing
• Hands‑on experience using Postman for API validation and testing
• Extensive Manual Testing experience across web, backend and enterprise applications
• Proven Integration Testing experience across complex system landscapes
• Experience working on Data Migration projects, including data validation, reconciliation and testing
• Strong understanding of the software testing lifecycle, defect management and quality assurance processes
• Experience creating and executing test plans, test cases and test scripts
• Ability to analyse requirements and translate them into effective test scenarios
• Excellent stakeholder management and communication skills
• Experience working within Agile delivery environments
• Exposure to end‑to‑end UAT support and coordination
• Automotive sector experience