Senior React Native Engineer - Remote

Overview

Washmen’s customer app handles thousands of daily orders across a complex multi-service platform. We need a Senior React Native Engineer who thrives on platform-level challenges: building custom native modules when JavaScript hits its limits, debugging memory leaks with Xcode Instruments, and architecting for performance under mobile constraints. You’ll own the technical decisions that directly impact our customer experience—from pixel-perfect UI implementation to real-time state management across unreliable networks. This isn’t just another CRUD app wrapped in React Native. If deep native iOS/Android expertise + modern React Native architecture is your thing, let’s talk.

In Short

• Design and build high-performance mobile applications using React Native for iOS and Android.
• Build and maintain custom native modules in Swift/Objective-C (iOS) and Kotlin/Java (Android) when JavaScript isn’t enough.
• Debug and optimize native-level performance issues using Xcode Instruments and Android Studio Profiler.
• Integrate third-party native SDKs and handle OS updates across both platforms.
• Manage API integration (REST/GraphQL) and state management using React Query.
• Translate designs into pixel-perfect UIs that work seamlessly on both platforms.
• Write testable code with unit, integration, and E2E tests (Jest, Appium).
• Mentor teammates through code reviews and pair programming.

Requirements

• Solid iOS (Swift/Objective-C) and Android (Kotlin/Java) fundamentals.
• Experience building custom native modules and React Native bridges.
• Deep understanding of React Native architecture (New Architecture, JSI, Turbo Modules).
• Strong debugging skills with native profilers and crash analysis tools.
• Expert-level React Native development.
• TypeScript, React Query, and modern state management.
• Performance optimization and memory management.
• API integration (REST/GraphQL).
• Testing frameworks (Jest, React Testing Library, Detox).
• App Store/Play Store release process.

Benefits

• Opportunity to work on a complex multi-service platform.
• Impact on customer experience through technical decisions.
• Mentorship opportunities.