AllCares
Middle React Native Engineer
AllCaresUkraine1 day ago
Full-timeEngineering, Information Technology
About The Role

Scrambly is looking for a skilled React Native Engineer to help build and scale the Scrambly mobile app for iOS and Android. In this role, you will own the end-to-end implementation of key features for a platform serving millions of users globally.

You will be writing robust, performant TypeScript code and collaborating with product teams to solve complex challenges. This is a high-impact role where you will work with a modern React Native stack, aiming to keep our app fast, reliable, and easy to maintain.

You Will Focus On

  • Feature Delivery: Building high-performance, user-centric mobile features for iOS and Android.
  • Code Quality: Writing clean, testable TypeScript code and actively participating in code reviews.
  • Performance: Identifying bottlenecks (app size, re-renders, startup time) and implementing fixes.
  • Collaboration: Working directly with Backend, QA, and Product teams to clarify requirements and deliver seamless UX.
  • Growth: Contributing to architectural discussions and learning best practices from senior engineers.

Key Responsibilities

  • Design & Implementation
    • Develop and maintain cross-platform applications using React Native and TypeScript.
    • Build reusable UI components and performant lists (FlashList/FlatList) that adhere to design specs.
    • Integrate mobile apps with backend services via RESTful APIs and WebSockets.
    • Debug platform-specific issues using Xcode and Android Studio, writing native modules (Swift/Kotlin) when necessary.
  • Engineering Standards
    • Contribute to the codebase's health by fixing technical debt and improving test coverage.
    • Participate in architectural discussions, offering input on state management and navigation patterns.
    • Review peer code to ensure it meets our standards for readability and maintainability.
  • Performance & Reliability
    • Monitor production crashes (using tools like Sentry/Crashlytics) and proactively fix stability issues.
    • Optimize app performance, focusing on frame rates, memory usage, and battery consumption.
    • Assist in maintaining CI/CD pipelines to ensure smooth releases to the App Store and Google Play.
Requirements

  • 3+ years of professional software engineering experience, with at least 2 years focused on React Native.
  • Strong proficiency in TypeScript and the React Native ecosystem (CLI, Hermes, debugging tools).
  • Good understanding of the iOS and Android build systems (Gradle, Pods, signing/provisioning).
  • Ability to read native code (Swift/Kotlin) to debug issues.
  • Familiarity with modern patterns (Functional Components, Hooks) and state management (Redux Toolkit, Zustand, or TanStack Query).
  • Experience writing unit tests (Jest) and familiarity with E2E testing concepts.
  • Ability to explain technical constraints to non-technical stakeholders clearly.
  • English: B2, written and spoken; ability to work in a team and communicate clearly in English.

Nice To Have

  • Experience launching and maintaining a B2C app with 100k+ MAU.
  • Hands-on experience writing Native Modules or JSI/TurboModules from scratch.
  • Familiarity with mobile analytics (Segment, Amplitude) and A/B testing implementation.
  • Experience with Maestro/Appium for automation.
  • Knowledge of backend fundamentals (Node.js) to debug API integrations effectively.
  • Experience with Web development (ReactJS, NextJS)

We Offer

  • Scale: Your code will impact millions of users globally, where performance optimizations translate to immediate value.
  • Modern Stack: Work with the latest React Native tools without being bogged down by legacy spaghetti code.
  • Growth Culture: A collaborative environment with code reviews and knowledge sharing - we value the best idea, regardless of title.
  • Impact: A fast-paced environment where you can see your features go live quickly.

Key Skills

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