TL;DR

Senior Mobile Developer (React Native): Architecting and building production-grade React Native features for mobile apps on both App Store and Play Store with an accent on performance optimization, secure data handling, and technical leadership. Focus on integrating native modules, mentoring junior developers, and ensuring 99.9% crash-free releases.

Company

UserWise is an AI-first organization building high-impact mobile applications.

What you will do

  • Architect and build production-grade React Native features that ship seamlessly to both the App Store and Play Store.
  • Provide technical leadership by enforcing coding standards, best practices, and quality checks.
  • Optimize app performance, memory usage, and startup times using tools like Xcode Instruments and Android Studio.
  • Integrate native modules (Swift, Kotlin/Java, Objective-C) to extend React Native capabilities when necessary.
  • Mentor mid-level and junior engineers, conducting code reviews, pair programming, and technical discussions.
  • Collaborate closely with product managers and designers to translate Figma specs into pixel-perfect, accessible UIs.
  • Ensure user data security and privacy, aligning with industry best practices for mobile security.
  • Lead post-mortems and monitor app health via tools like Crashlytics, analytics, and A/B testing frameworks.

Requirements

  • 10+ years of professional software development experience, with at least 5 years dedicated to mobile (native or React Native) development.
  • Proven experience with React Native and TypeScript, having developed production apps for both iOS and Android.
  • Deep knowledge of mobile release processes and familiarity with Apple/Google guidelines for app submissions.
  • Strong understanding of JavaScript runtime and async patterns, with experience in mobile memory management and performance tuning.
  • Hands-on experience writing and debugging native modules in at least one of Swift, Kotlin, Objective-C, or Java.
  • Proficiency in working with REST APIs, local data persistence, and offline sync patterns.

Nice to have

  • Experience with React Native Re-animated v3 and gesture-handler for complex mobile interactions.
  • Familiarity with integrating mobile payments, in-app purchases, or push-notification services at scale.
  • Experience with continuous localization and internationalization for global apps.

Culture & Benefits

  • Senior-heavy engineering organization that favors pragmatic decisions over dogma.
  • Async-friendly communication with a preference for Slack and low meetings.
  • Commitment to shipping both quickly and with quality, rapidly fixing issues.
  • Empowerment for developers to take ownership of their work, from coding to releases.
  • Market competitive, tax-free USD salaries.
  • Private Health Insurance, Paid Time Off, Performance Bonus, and Annual Performance Reviews.