Mobile App Tech Lead (React Native) – iOS & Android

ARC IT Recruitment; Greater London; On-site; GBP 129,000 - 138,000; Full time

Job summary

ARC IT Recruitment is seeking a Mobile App Tech Lead to own the React Native architecture for iOS and Android, with responsibility across the mobile product portfolio. This is a remote contract with a day rate of £700-£750, outside IR35, initial 12 months with extensions.

The role requires hands-on background to review code and guide performance, security and scalability, while leading a high-visibility release with vendor partners and internal teams.

Qualifications

• Proven experience leading the architecture and delivery of React Native apps for iOS and Android.
• Strong architectural leadership and governance across mobile platforms.
• Excellent communication with cross-functional teams and stakeholders.

Responsibilities

• Owning mobile architecture, integration and engineering governance end to end.
• Reviewing external vendor delivery: solution quality, technical risk, and code review where needed.
• Acting as the link between the delivery partner and internal backend teams, agreeing API contracts.
• Leading technical discovery with Product, BAs and designers.
• Defining the mobile testing strategy and overseeing quality controls.

Skills

React Native

Mobile architecture

Leadership

API contracts

Code review

Job description

Mobile App Tech Lead (React Native) - iOS & Android

Contract | Remote | £650 - £700 | Outside IR35, initial 12 months with extensions!

ASAP start

A well-established, globally recognised organisation is looking for a Mobile App Tech Lead to own the technical direction of its React Native application across iOS and Android, with scope to support related mobile products in the wider portfolio.

This is a high-visibility role on a major upcoming release, working alongside a strong existing team and two vendor partners going through final selection. You'll set the architecture, hold the line on engineering standards, and act as the technical bridge between the delivery partner and internal backend teams. Coding isn't the day job here (the vendor builds), but you'll need enough hands-on background to review code, challenge architecture decisions, and speak with real authority on performance, scalability and security.

What matters most for this one: you're someone who builds relationships easily, works well across a large project team, and can push backend partners for what you need without creating friction. Strong technical judgement is essential, but how you communicate and collaborate is what will set you apart.

What you'll be doing:

• Owning mobile architecture, integration and engineering governance end to end
• Reviewing external vendor delivery: solution quality, technical risk, and code review where needed
• Acting as the key link between the delivery partner and internal backend/platform teams, agreeing API contracts and resolving blockers
• Leading technical discovery and feasibility work alongside Product, BAs and designers
• Defining the mobile testing strategy and overseeing quality controls
• Representing the mobile product in technical governance and planning forums
• Mentoring engineers and supporting a faster-paced, ship-often delivery culture

What we're looking for:

• Proven experience leading the architecture and delivery of React Native apps across iOS and Android, including integration with enterprise platforms and APIs
• Strong technical leadership: setting architecture, defining engineering standards, overseeing code quality and governance
• A confident, collaborative communicator who works well with internal teams, external partners and non-technical stakeholders alike
• Comfortable operating at pace on a fast-moving, high-visibility project rather than a slow, highly process-driven one
• Vendor oversight experience is a plus but not essential, since there's dedicated delivery management support in place

Remote working, day rate £700-750, and a start date as soon as possible for the right candidate. Strong potential to extend well beyond the initial term.