Flutter Developer (RARR Job 6293)

What You'll Build

• Build the Flutter app for iOS and Android - single codebase, production-grade
• Live generation dashboard - real-time kWh output, MPPT status, inverter health score
• Push notification handling (Firebase FCM) for maintenance alerts and anomaly warnings
• Historical charts - daily/monthly yield, Performance Ratio trend, forecast vs actual
• Device onboarding flow - site setup, inverter pairing, configuration
• Offline-first architecture with local caching - app works during poor connectivity
• Settings, profile, and multi-site switching for users managing multiple installations
• Maintain consistent design language with the Next.js web portal

Required Skills

• Flutter 3.x + Dart - widgets, stateful/stateless, navigation (go_router or Navigator 2.0)
• State management - Provider, Riverpod, or Bloc. One of these in production or projects.
• REST API integration - Dio / http package, JSON parsing, error handling
• Firebase - FCM push notifications, Crashlytics, Analytics
• Local storage - shared_preferences, Hive, or SQLite (floor / sqflite)
• Git - feature branch workflow, clean PRs
• App deployment basics - understanding of Play Store / App Store release process

Bonus Skills (Good to Have)

• Flutter charting libraries - fl_chart, syncfusion_flutter_charts, charts_flutter
• WebSocket / real-time updates in Flutter - live data streams in UI
• Platform-specific code - method channels for Android/iOS native features
• BLE / Wi-Fi device pairing - useful for inverter Wi-Fi dongle onboarding flow
• Unit and widget testing in Flutter - flutter_test, integration_test
• Experience publishing apps to Play Store or App Store

You'll Thrive Here If You

• Have a Flutter app on the Play Store or App Store, or a strong GitHub project to show
• Think about the end user - solar installers and homeowners, not developers
• Are detail-oriented about animations, transitions, and loading states
• Can take a Figma mockup and build it accurately without hand-holding
• Are you comfortable asking for API spec clarity from backend engineers early

What You Get

• Ship a production app used by real solar plant operators - strong portfolio addition
• Exposure to real-time IoT data, ML outputs, and industrial dashboard patterns
• Opportunity to grow into senior mobile or Flutter lead as the user base grows