Senior Mobile Engineer

at Rain Instant Pay

Remote, EMEA

Rain is the fastest-growing earned wage access (EWA) fintech in the U.S. We serve 2.5 million employees and are backed by top investors like QED and Prosus. We have raised nearly $400M in funding, including the largest Series A in fintech history, and recently closed our Series B to fuel our next stage of hypergrowth.

Our platform helps people avoid unnecessary financial stress while helping employers boost retention, productivity, and employee well-being. We're driving a movement toward financial freedom, and we are just getting started.

As a mobile engineer, you will develop, test, and deploy Rain and our white label apps to thousands of users across the United States. You will communicate efficiently with Product and Design to implement features at Rain's quality bar. If JavaScript/TypeScript is your passion — we want you. As an evolving AI-first company, we also expect candidates to be passionate about AI-assisted coding and prompt engineering.

• 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

• You have 5+ years of professional mobile development experience under your belt
• You thrive with minimal supervision and can take ownership of complex features from ideation to deployment
• You are committed to code health, leveraging unit and integration testing to ensure a stable user experience
• You are forward-thinking and incorporate AI agents (like Cursor or Claude Code) into your workflow to increase velocity and code quality
• A natural problem-solver who can navigate complex debugging sessions using React Native Debugger or Chrome DevTools

• Expert-level knowledge of React Native (fundamentals and lifecycle) and TypeScript/ES6+
• Significant experience with React (familiarity with v19+ is a major plus)
• Proficiency with Reanimated; experience with Shopify Restyle is highly desirable
• 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

As part of our dedication to the diversity of our workforce, Rain is committed to Equal Employment Opportunity and does not discriminate based on race, religion, color, national origin, ethnicity, gender, sex (including pregnancy), protected veteran status, age, disability, sexual orientation, gender identity, gender expression, or any unlawful criterion existing under applicable federal, state, or local laws. If you need assistance or accommodation due to a disability, you may contact us at [email protected].