React Native/Expo Engineer (Senior/Lead)

Rate: Up to £530 per day (PAYE via Umbrella only)
Location: Fully Remote UK Based
Clearance Required: BPSS (SC preferred/advantageous)
Sector: Public Sector
IR35 Status: Inside IR35
Interview Process: Technical Interview
Contract Type: Contract

Role Overview

We are seeking a Senior/Lead Mobile Engineer with strong React Native and Expo experience to support the review of an existing hybrid mobile application.

The role will focus on delivering a detailed tactical assessment of the current solution and providing strategic input into future mobile architecture decisions, including evaluating whether a hybrid approach remains suitable for long-term use.

Key Responsibilities

• Conduct a comprehensive technical review of an existing hybrid mobile application
• Assess strengths, limitations, and risks of the current React Native/Expo approach
• Provide strategic recommendations for future mobile solutions
• Support options analysis for hybrid vs native approaches
• Collaborate with technical and delivery stakeholders

Essential Skills & Experience

• Proven delivery of cross-platform/hybrid mobile applications through full SDLC to app store release
• Strong experience with React Native and Expo
• Experience integrating with APIs
• Solid understanding of iOS and Android platforms, including limitations of hybrid frameworks
• Ability to operate at senior/lead level, providing architectural and strategic guidance

Desirable Experience

• Native iOS and/or Android development experience
• Offline synchronisation within mobile applications
• Experience with Government SSO solutions (eg GOV.UK One Login, Government Gateway)
• Prior experience within public sector environments