Senior Mobile Engineer (React Native) jobs in United States
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Fanfix · 1 month ago

Senior Mobile Engineer (React Native)

Fanfix is a premier content platform dedicated to empowering creators and fostering meaningful connections with their fans. As a Senior Mobile Engineer, you will design and develop scalable mobile applications using React Native, collaborating with various teams to enhance user experience and app performance.

Content CreatorsDigital EntertainmentMobile AppsSubscription Service
Hiring Manager
Alex DuRee-Ferriss
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Responsibilities

Application Development: Design, build, and maintain native app features that deliver exceptional performance, scalability, and user experience
Collaboration: Partner with product managers, designers, and backend engineers to create intuitive, pixel-perfect mobile experiences
Testing & Quality: Write and maintain robust unit and integration tests to ensure code quality and stability
Performance Optimization: Continuously improve app performance, startup time, and responsiveness
Feature Ownership: Take ownership of key mobile features or modules from ideation to release
Architecture Contribution: Participate in technical planning and help shape the future of Fanfix’s mobile architecture and tooling
Mentorship: Guide and support junior and mid-level engineers to strengthen the team’s native expertise

Qualification

React NativeExpo & EASTypeScriptMobile PerformanceAPI IntegrationCross-Platform DevelopmentTestingHybrid CollaborationProactive Problem SolverAttention to DetailInitiativeAdaptability

Required

Extensive experience building cross-platform apps with React Native, including navigation, animations, and performance optimization
Proven experience with Expo SDK, EAS Build/Submit/Update, and OTA delivery workflows
Strong command of TypeScript for clean, type-safe, and maintainable codebases
Familiarity with modern React Native UI frameworks such as NativeWind and shadcn/ui
Deep understanding of app startup time, bundle optimization, memory management, and frame-rate stability
Proven experience integrating GraphQL or REST APIs using tools such as React Query or Apollo Client
Knowledge of bridging native modules, managing platform-specific configurations, and integrating third-party SDKs
Proficient with Jest and React Native Testing Library, plus experience with end-to-end frameworks such as Detox or Maestro
Demonstrates precision in UI execution, state management, and platform-specific behavior
Self-driven, with the ability to take ownership of projects and deliver features from conception to completion
Thrives in a hybrid work environment, collaborating effectively both remotely and in person

Preferred

Experience contributing to or maintaining a shared cross-platform design system (e.g., shadcn/ui + NativeWind + Radix primitives)
Familiarity with TestFlight, Google Play Console, and automated release pipelines
Understanding of GitHub Actions, EAS Build pipelines, and remote caching in monorepo environments
Experience integrating PostHog, LaunchDarkly, or similar tools for analytics and feature rollout
Familiarity with Sentry, Expo Application Services, or equivalent tools for monitoring app health and stability
Comfortable working in Turborepo with shared packages, utilities, and backend adapters
Anticipates and resolves performance and UX challenges early
Passionate about adopting new mobile technologies and improving development velocity
Thrives in a fast-moving startup environment with evolving priorities and product goals

Benefits

100% Employer sponsored medical, dental and vision insurance, including all dependents!
401k
Generous PTO / paid holidays
Parental leave
Fun working environment at a high growth tech startup!

Company

Fanfix

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Fanfix allows creators to monetize platforms and give access to exclusive content via subscription.