React Native Engineer

Android application (Clean Architecture, MVVM). Ensure stability for both staff-facing and passenger-facing applications operating in live rail environments. Strategise Migration - Formulate and execute a safe, phased plan to deconstruct the existing monolithic Android app and rebuild functionality in React Native without disrupting current operations. Bridge Native & Cross-Platform - Write native modules where necessary and ensure high-performance interop between Kotlin and JavaScript/TypeScript using the React Native Bridge and JSI. Cross-Team Alignment - Work closely with the Swift/iOS engineer to ensure migration plans align with iOS architecture and roadmap priorities. Collaborate with Data and Product teams to balance commercial speed with platform stability. This is a high-context-switching role requiring strong autonomy and decision-making capability. The Tech Environment: Target Stack React Native (TypeScript) React Navigation Reanimated Legacy / Native Stack 100% Kotlin, A leading mobile gaming company in Edinburgh is seeking a Senior Software Engineer (Android / React Native) to improve foundational engineering processes. You'll work collaboratively to enhance the mobile platform, focusing on performance and scalability. The ideal..., Job Description Engineering Manager (Consumer Mobile) £120k-£140k | London (Hybrid) I'm working with a high-growth consumer technology company hiring an Engineering Manager to lead the team responsible for its core mobile product. The business operates in the...

Android SDK 24-34 Jetpack Coroutines (Flows/Channels) Koin (Dependency Injection) MockK Gradle Kotlin DSL You are not expected to know every tool immediately, but you must be comfortable operating deeply in both native Android and cross-platform React Native ecosystems. Requirements Must Haves 6+ years of mobile engineering experience. Senior-level Kotlin expertise, including Clean Architecture, MVVM, DI (Koin/Dagger), and Coroutines/Flow. Strong React Native experience beyond UI - including native modules, Bridge/JSI, and performance optimisation. Experience integrating React Native into an existing native Android codebase (brownfield experience). Proven experience architecting or significantly contributing to mobile platform migrations. Comfortable making architectural trade-offs in high-risk, live environments. Ability to manage ambiguity and switch context between greenfield and legacy projects. Strong communication skills and experience working in remote, cross-functional teams. Nice to Haves: Experience migrating from fully native apps to cross-platform solutions. Experience in transport, logistics, or regulated industries. Familiarity with performance profiling tools on Android. Experience working in B2B SaaS environments. Exposure to Swift/iOS architecture (even if not hands-on). Benefits Private healthcare after your probation (including children) Hybrid working model 25 days holiday Volunteering Leave Free flu jab for you and your family Culture & Operating Principles We value: Ownership over hierarchy Clarity over bureaucracy Impact over job titles We operate with high autonomy and high accountability. People are expected to raise risks early, communicate clearly, and take responsibility for outcomes. Interview Roadmap 1. Screening Call (30 mins) - Recruiter alignment2. Technical Architecture Discussion - Migration & RN integration deep dive 3. Deep Dive Interview - Engineering & Product 4. Final Culture Conversation - Leadership alignment Guaranteed Interview Scheme We're a Disability Confident employer and we welcome applications from disabled candidates. If you need any adjustments at any stage of the recruitment process, please tell us what would help - we'll work with you to make the process as accessible as possible. We also offer a Guaranteed Interview Scheme (GIS) for candidates who consider themselves to have a disability as defined under the Equality Act 2010. If you indicate this option in your application and your application demonstrates that you meet the essential criteria for the role, you'll be invited to interview or assessment. Choosing GIS doesn't guarantee a job offer. If you have any questions, please get in touch. Similar jobs, Job Description We are looking for an exceptional Frontend Engineer with raw, hands-on React Native expertise to join one of the fastest growing crypto exchanges world-wide. If you love solving complex mobile challenges, building smooth high-performance apps, and working..., Reward Gateway, is seeking a Lead Engineer to advance its mobile development team. The ideal candidate will possess extensive experience in React Native and a passion for creating high-quality mobile applications. You'll be crucial in guiding a team to deliver exceptional...

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