Full Stack Engineer Hybrid - 3 days in Central London | Initial 6 month contract | Inside IR35 A leading global tech company is looking for a Full Stack Engineer with a strong background in test automation, iOS testing and full-stack development. This role blends hands-on development across frontend and backend systems with test strategy, automation and QA best practices - within a fast-paced and highly collaborative environment. Key Responsibilities: Lead UAT and QA efforts across mobile platforms, with a focus on on-device iOS testing Build and maintain automated test frameworks using Python Design and develop scalable frontend interfaces with React/JavaScript Implement robust backend services and APIs in Python, managing data with Postgres Drive CI/CD pipelines, support DevOps tasks, ensuring app performance and security Collaborate across Engineering and Product teams to resolve issues and deliver with confidence Your Profile: Experience in QA/UAT, with expertise in automation for end-to-end systems Strong Python development skills for both automation and backend logic Experience in frontend development with React/JS essential Proficient in iOS test automation - Selenium and Appium desirable Strong communicator and team collaborator Beneficial: Experience with data automation/reporting across complex systems