Senior Mobile Engineer (React Native)

About Boldin

Boldin is a financial planning platform that helps people make smarter decisions with their money. We’ve raised over $20M and are entering a pivotal phase of growth. This is an opportunity to join a mission-driven team building something that truly matters.

The Role

We’re building our mobile app from scratch and are looking for a Senior Mobile Engineer to lead this effort. This is a greenfield opportunity where you will define the foundational architecture, navigation, state management, and release strategy for the mobile application.

You will own the full mobile lifecycle — from initial architecture to App Store and Google Play delivery. We’re looking for someone with strong React Native experience who understands mobile-specific challenges and can balance speed with long-term scalability.

What You’ll Do

• Define and implement mobile architecture from the ground up (project structure, navigation, state management, API layer, error handling)
• Build core features in React Native with clean, scalable, and performant code
• Own CI/CD for mobile (automated builds, testing, code signing, and app store submissions)
• Establish scalable engineering patterns (component architecture, design system integration, code review standards)
• Collaborate with Product, Design, and Backend teams to shape the mobile experience
• Optimize performance (startup time, frame rates, memory usage, bundle size)
• Handle mobile-specific features (push notifications, deep linking, offline mode, permissions, native modules)
• Evaluate and select third-party libraries based on scalability and maintainability

Required Qualifications

• 5+ years of software engineering experience, with 3+ years in mobile development
• Strong production experience with React Native (apps used by real users)
• Deep understanding of mobile concepts (app lifecycle, navigation, gestures, iOS vs Android differences)
• Experience building mobile apps from scratch, including CI/CD and release processes
• Strong knowledge of TypeScript, React patterns, and state management
• Experience with mobile performance optimization
• Strong communication skills and ability to collaborate cross-functionally

Nice to Have / Valuable Experience

• Experience building and launching mobile apps from greenfield to production
• Familiarity with native iOS (Swift) or Android (Kotlin)
• Experience with app store processes, release strategies (phased rollout, feature flags), and OTA updates (e.g., CodePush)
• Experience with analytics and monitoring tools (e.g., Sentry, Crashlytics)
• Knowledge of mobile accessibility standards (VoiceOver, TalkBack)
• Experience in fintech or regulated industries

Bonus Skills

• Experience with Expo or EAS Build
• Experience with mobile testing frameworks (Detox, Maestro, Appium)
• Background in design systems or mobile component libraries

Benefits:

• Collaborative and innovative work environment.
• Flex PTO for any reason, including sick days (no specified limits), flexible work schedule.
• Personal laptop.
• Health and wellness package.
• Budget for English lessons.

Equal Opportunity

Boldin is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability.