Senior Flutter Developer

8+ years of commercial mobile application development experience, with a significant portion using Flutter/Dart

Experience working with large codebases (50k+ lines) and long-lived projects

Strong understanding of mobile application architectural patterns and ability to make architectural decisions

State Management & Architecture

Strong proficiency in Riverpod — providers, notifiers, AsyncValue, caching and invalidation

Experience with reactive programming using RxDart (Streams, BehaviorSubject, stream combination)

Navigation with GoRouter — deep linking, nested routes, guards, redirect logic

Local Database & Offline Mode

Practical experience with Drift (code generation, migrations, complex queries, joins, transactions)

Understanding of offline-first architecture principles: data synchronization, conflict resolution, operation queues

Experience with SQLite; familiarity with database encryption (SQLCipher) is a plus

Networking

Strong knowledge of Dio — interceptors (auth, retry, logging), error handling, cancel tokens

Understanding of REST APIs, authorization tokens, refresh token logic

Experience using flutter_secure_storage for secure credential storage

Firebase

Integration and configuration of Firebase: Analytics, Crashlytics, Cloud Messaging (push notifications), Remote Config, Performance Monitoring

Experience debugging push notifications on both platforms

Device & Native APIs

Camera, gallery, file system (image_picker, file_picker, path_provider)

Geolocation and maps (Geolocator, Google Maps Flutter, map_launcher)

QR/barcode scanning (mobile_scanner)

Permissions (permission_handler), deep links (app_links)

Background file downloads (background_downloader)

Testing

Experience writing unit tests for business logic, services, and Riverpod providers

Experience with widget testing for UI components and user scenarios

Proficiency with mockito — dependency mocking, stubs, call verification

Testing asynchronous code: fake_async, stream matchers, timers

Experience or willingness to work with integration/E2E testing (Patrol or similar)

Understanding what and when to test — balancing coverage and maintenance cost

Native Integration

Experience integrating native libraries for Android (NDK, JNI, Kotlin/Java) and iOS (Swift/Objective-C, CocoaPods, XCFramework)

Writing Platform Channels (MethodChannel, EventChannel) to connect Flutter with native code

Ability to create Flutter plugins with native wrappers for both platforms

Experience debugging platform-specific issues — build, linking, native dependency compatibility

Code Quality & Code Review

Ability to conduct meaningful code reviews focusing on reliability, performance, and readability

Ability to identify async/await issues, memory leaks, and race conditions during review

CI/CD

Experience setting up and maintaining CI/CD for mobile applications (Fastlane, Codemagic, GitHub Actions or similar)

Automation of builds, signing, and publishing to the App Store / Google Play