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Zazz

Senior React Native Developer

Posted 2 Days Ago
In-Office or Remote
Hiring Remotely in Seattle, WA
Senior level
In-Office or Remote
Hiring Remotely in Seattle, WA
Senior level
Lead development of performant cross-platform mobile applications using React Native. Own architecture, integrate APIs and native modules, optimize performance, manage App Store and Google Play releases, review code, mentor developers, and collaborate with clients and product teams. The role requires strong JavaScript and TypeScript expertise, AI/LLM API integration, mobile architecture knowledge, testing, and native iOS and Android development experience.
The summary above was generated by AI

This is a remote position.

About Us: We're a custom mobile software development company building tailored, high-quality mobile applications for clients across industries. We take products from concept to store, and we care deeply about clean architecture, performance, and long-term maintainability. We're looking for a senior engineer to take ownership of our React Native work as a key member of our mobile team.

 

About the Role: We're seeking a Senior React Native Developer with deep, hands-on expertise to lead the development of cross-platform mobile applications. This is a senior position — you'll own features end to end, make architectural decisions and act as a technical point of reference across projects. You should be comfortable working directly with clients and translating requirements into robust, production-ready apps.

What You'll Do

  • Design, build, and maintain performant cross-platform mobile apps using React Native
  • Own architecture decisions and set best practices for the mobile codebase
  • Integrate with REST/GraphQL APIs, third-party SDKs, and native modules
  • Write and bridge native code (Swift/Objective-C, Kotlin/Java) when required
  • Optimize app performance, memory usage, and startup time
  • Manage the full release cycle — build, test, and deploy to the App Store and Google Play
  • Review code, mentor mid- and junior-level developers, and uphold engineering standards
  • Collaborate with designers, product managers, and clients to deliver on requirements

Required Skills & Experience

  • 7+ years of professional mobile development experience, with substantial React Native experience
  • Expert knowledge of JavaScript (ES6+) and TypeScript
  • Hands-on experience integrating AI/LLM APIs (OpenAI, Anthropic, Google Gemini, or similar) into applications
  • Strong understanding of React fundamentals — hooks, context, component lifecycle, and performance optimization
  • Experience with state management (Redux / Redux Toolkit, Zustand, or Context API)
  • Solid experience with React Navigation
  • Proficiency integrating RESTful and/or GraphQL APIs
  • Experience writing native modules and bridging native code (iOS: Swift/Objective-C; Android: Kotlin/Java)
  • Familiarity with native build tooling (Xcode, Android Studio, Gradle, CocoaPods)
  • Experience publishing and maintaining apps on the App Store and Google Play
  • Strong understanding of mobile app architecture, offline handling, and security best practices
  • Experience with Git and collaborative version control workflows

Nice to Have

  • Experience with Expo and the Expo ecosystem
  • Familiarity with the New Architecture (Fabric, TurboModules) and Hermes
  • Testing experience (Jest, React Native Testing Library, Detox)
  • CI/CD for mobile (Fastlane, EAS, Bitrise, GitHub Actions)
  • Push notifications, deep linking, and analytics integration (Firebase, etc.)
  • Experience in a client-facing or agency/consulting environment
  • Native mobile development background (fully native iOS or Android)

What We're Looking For in a Person

  • A senior engineer who takes ownership and can work independently
  • Genuine enthusiasm for AI and a habit of using it to build better products
  • Strong communication skills and comfort working directly with clients
  • Someone who values code quality, testing, and maintainable solutions

Tech Stack: React Native, JavaScript (ES6+), TypeScript, React, Redux Toolkit / Zustand, React Navigation, REST / GraphQL, Swift / Objective-C, Kotlin / Java, Xcode, Android Studio, Gradle, CocoaPods, Git, Firebase, Jest / Detox, Fastlane / EAS



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