Salary: £40,000 - 70,000 per year Requirements: Demonstrable experience delivering cross-platform / hybrid mobile applications through the full SDLC to end-user release Strong commercial experience with React Native and Expo Experience integrating mobile applications with APIs and backend services Good understanding of iOS and Android platforms, including considerations when working with hybrid frameworks BPSS Clearance required; SC Clearance preferred Native iOS and/or Android development experience (desirable) Experience implementing offline or low-connectivity capabilities within mobile applications (desirable) Experience with Government SSO solutions e.g. Gov Gateway, Gov One (desirable) Responsibilities: Contribute to a detailed technical assessment of a mobile application utilizing a hybrid framework Evaluate the robustness, maintainability and scalability of the current React Native / Expo implementation Provide evidence-based observations to inform future technical direction Support discussions comparing different mobile delivery approaches, as required Engage with a small group of technical and non-technical stakeholders to communicate findings clearly and appropriately Technologies: Android Backend Support Mobile React React Native iOS More: We are a forward-thinking company seeking an experienced Senior Mobile Engineer with strong React Native and Expo expertise to contribute to a confidential technical assessment of a mobile application. This fully remote contract role offers competitive rates and a collaborative environment, where youll have the opportunity to make impactful decisions that shape the future of mobile delivery strategies. We encourage a diverse range of applicants and are committed to providing equal opportunities for all. last updated 6 week of 2026