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Rain

Senior Mobile Engineer

Rain

Mobile Engineer developing high-performance mobile applications for Rain Instant Pay. Collaborating in cross-functional teams to implement React Native solutions in a fintech environment.

Posted 4/25/2026full-timeRemote • 🇪🇺 Anywhere in EuropeSeniorWebsite

Tech Stack

Tools & technologies
AndroidiOSJavaJestKotlinMobXObjective-CReactReact NativeReduxSwiftTypeScript

About the role

Key responsibilities & impact
  • Develop high-performance mobile applications using React Native, focusing on smooth components, lifecycle management, and performance optimization
  • Create and integrate native modules by bridging iOS (Swift/ObjC) and Android (Kotlin/Java) to extend app functionality beyond the standard framework
  • Implement pixel-perfect UIs and fluid, performant animations using Reanimated and modern theming libraries
  • Architect robust data-handling patterns using RESTful APIs, React Query, and sophisticated state management (Redux, MobX, or Context API)
  • Own the full release lifecycle, from managing App Store Connect and Google Play Store to maintaining CI/CD pipelines via Bitrise, Expo/EAS, or GitLab
  • Work closely with designers, PMs, and backend engineers in a cross-functional environment to turn product visions into reality

Requirements

What you’ll need
  • 5+ years of professional mobile development experience
  • Expert-level knowledge of React Native (fundamentals and lifecycle) and TypeScript/ES6+
  • Significant experience with React
  • Proficiency with Reanimated; experience with Shopify Restyle is a plus
  • Competency in native mobile languages (Swift, Objective-C, Kotlin, and/or Java)
  • Hands-on experience with Jest and React Native Testing Library
  • Familiarity with mobile-specific CI/CD workflows and automated build tools

Benefits

Comp & perks
  • Diversity, Equity and Inclusion Commitments

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Hard Skills & Tools
React NativeTypeScriptES6SwiftObjective-CKotlinJavaReanimatedReduxRESTful APIs