Frontend Engineer (React Native / Expo)

careerbox.42webvia Careerbox.42web

RemotoGbPlenoCLT22 dias atrás

Salário Estimado

R$ 7.128,00 - R$ 10.692,00

Tecnologias

TypeScript React Go API GraphQL React Native Android iOS Mobile IA

0de 100

Excelente

Score da Vaga

Descrição da Vaga

We are looking for a Frontend Developer to support the development and refinement of our mobile application on a paid, remote, independent contractor (1099) basis.

This is a part-time, flexible, project-based role, working closely with the founder and product team to build, maintain, and improve a production-level React Native application across iOS and Android.

This role is initially offered on a contract basis, with the potential for longer-term collaboration or conversion to a full-time role depending on performance, mutual fit, and business needs.

What You’ll Be Working On / Responsibilities • Building and maintaining a cross-platform mobile application using React Native and Expo

•Implementing frontend features based on existing designs and product requirements • Debugging and testing on real iOS and Android devices

•Improving performance, reliability, and UI consistency across platforms • Collaborating with backend systems via GraphQL APIs

•Refactoring and improving existing code while preserving functionality • Supporting ongoing product iterations toward MVP and post-MVP improvements Must-have Requirements React Native

•Strong experience with React Native • Building and maintaining cross-platform iOS and Android applications

•Hands-on experience testing and debugging on real devices (not emulator-only) Expo • Experience with Expo

•Familiarity with Expo Router for file-based routing • Experience with Expo EAS Build and OTA updates

•Understanding of Expo limitations and native module constraints GraphQL • Experience with GraphQL APIs and codegen

•Understanding of queries, mutations, and subscriptions • Caching, pagination, and refetch strategies React Query (TanStack Query)

•Server state management, caching, and synchronization • Query invalidation, optimistic updates, pagination, infinite scroll

•Understanding when to use server state vs client state TypeScript • Strict mode, no any, no casting to bypass type errors

•Proper typing for props, state, and API responses • Generic types, discriminated unions, and utility types React Patterns

•Component composition over prop drilling • Custom hooks for logic extraction

•Performance optimization (memo, useMemo, useCallback, and when NOT to use them) • Understanding React’s rendering behavior State Management

•Local state with React Context or Zustand • Form state with React Hook Form

•MMKV for fast local storage UI Implementation • Ability to implement pixel-accurate UIs from Figma

•Experience with Reanimated for animations • FlashList for performant lists

•Understanding of iOS vs Android platform differences Async & Error Handling • Handling loading, error, and empty states

•Network edge cases and offline behavior • Retry strategies and error boundaries Code Quality

•Clear code structure (avoiding prop drilling, proper separation of concerns) • Consistent naming conventions and file organization

•Refactoring existing codebases without breaking functionality Firebase • Firebase Cloud Messaging / push notifications

•App versioning and distribution (App Distribution, Crashlytics) Nice-to-have (Plus) • Sendbird or similar chat SDK integration

•Experience with payment SDKs like Stripe • Comfortable navigating third-party SDKs and documentation Working Style & Compensation

•Fully remote • Flexible, part-time schedule

•Deliverable and milestone-driven work • Paid role (hourly or project-based)

•Independent contractor (1099) Pay: Up to $2,000.00 per month Work Location: Remote Apply tot his job Apply tot his job

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Informações

NívelPleno

ContratoCLT

LocalGb

RemotoSim

MoedaBRL

Publicada22 dias atrás

FonteCareerbox.42web

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