React Native Developer

2 weeks ago

Delhi NCR New Delhi, India Botlab Dynamics Full time ₹ 5,00,000 - ₹ 12,00,000 per year

Role Overview:

As a React & React Native Developer (3-4 years experience), you will collaborate with UI/UX designers, backend engineers, and product owners to architect, develop, and maintain both web and mobile codebases. You'll be instrumental in translating designs into pixel-perfect interfaces, optimizing performance, and ensuring robust offline and real-time data handling

Key Responsibilities:

  • Component Development

Create modular, reusable UI components in React and React Native.

Translate Figma/Sketch designs into pixel-perfect layouts.

  • API Integration

Consume RESTful and GraphQL services with error handling, caching, and retry logic for offline support.

Implement JWT token management and robust data synchronization.

  • Performance & Optimization

Profile and optimize rendering (e.g., FlatList/SectionList), bundle size, and network calls.

Apply code-splitting, lazy loading, and Redux performance tuning.

  • Testing & QA

Author unit and integration tests with Jest and React Testing Library.

Build end-to-end suites using Cypress/Playwright for web and Detox/Appium for mobile.

  • CI/CD & Releases

Configure pipelines (GitHub Actions, CircleCI, Jenkins) and mobile delivery (Fastlane for TestFlight/App Store & Play Store).

Manage versioning, branching strategies, and release notes.

  • Collaboration & Support

Participate in Agile ceremonies, sprint planning, and peer code reviews.

Monitor production issues via Sentry/Bugsnag, analyze logs, and deploy hotfixes.

Required Qualifications:

  • React & React Native Expertise

Deep understanding of component lifecycle, reconciliation, Hooks (useReducer, useMemo, useCallback), and Context API.

  • State Management

Proficient with Redux Toolkit (slices, middleware), MobX, or Recoil.

  • Styling

Experience with CSS-in-JS (styled-components, Emotion), Tailwind CSS, or BEM.

  • Mobile App Delivery

iOS and Android build processes, provisioning profiles, and App Store/TestFlight/Google Play deployments.

  • Native Module Integration

Bridging in Objective-C/Swift and Java/Kotlin for custom functionality.

  • Performance Tuning

JS thread profiling, memory leak detection, and efficient list rendering strategies.

  • Modern JavaScript & TypeScript

ESNext features (async/await, dynamic imports, proxies) and strong TS skills (generics, discriminated unions, mapped types).

  • Tooling & Linting

Custom ESLint rules, Prettier, Husky, and lint-staged for code quality enforcement.

  • Testing Frameworks

Jest with coverage thresholds, React Testing Library best practices, and E2E tools (Cypress/Playwright, Detox/Appium).

  • Monitoring & Analysis

Lighthouse audits, bundle-analyzer, and error tracking with Sentry or Bugsnag.

  • Data Storage & Offline

AsyncStorage, MMKV, SQLite/Realm, and conflict resolution sync patterns.

  • Build & Bundler

Webpack and Metro customizations, tree-shaking, and code splitting.

  • CI/CD & DevOps Basics

Familiarity with GitHub Actions, CircleCI/Jenkins, Fastlane, and Docker. Kubernetes knowledge is a plus.

  • Version Control & Monorepo

Advanced Git (merge/rebase), Lerna or Yarn Workspaces.

  • Agile Practices

Backlog grooming, estimation (Planning Poker), and JIRA/Azure DevOps.

Preferred Experience:

  • Google Maps APIs, KML exports, and geospatial visualizations.
  • Flask or backend collaboration.
  • Docker and Kubernetes orchestration.

Soft Skills:

  • Strong analytical and problem-solving mindset.
  • Excellent written and verbal communication.
  • Detail-oriented with a passion for polished UX and thorough documentation.

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