Starmark Software

Description :Job Overview :We are seeking a Senior Flutter Developer with proven hands-on experience building and deploying production-grade applications across Android, iOS, Web, and Windows using Flutter. This role demands a strong understanding of cross-platform development principles and a commitment to delivering high-quality code and exceptional user experiences.As a key member of our team, youll lead cross-platform initiatives, mentor junior developers, and collaborate with designers and backend engineers to develop scalable and performant applications.Role & Responsibilities :Flutter & Dart Expertise :- 3+ years of experience building robust Flutter applications in production.- Deep understanding of Dart language features like Futures, async/await, Streams, extension methods.- Advanced Flutter widget knowledge : Stateless, Stateful, InheritedWidget, and custom widgets.- Strong grasp of Flutter UI rendering, widget lifecycle, composition, and responsive layouts.Cross-Platform Application Development (Android, iOS, Web, Windows) :- End-to-end experience in developing and deploying cross-platform apps using Flutter- Android : Support for multiple API levels, deep linking, background services, and intent handling.- iOS : Integration with platform-specific APIs (camera, push notifications, location), App Store deployment, provisioning, and build configurations.- Web : Flutter Web optimization, responsiveness, web-specific routing, PWA support, and asset management.- Windows (Desktop) : Experience building Windows apps using Flutter, working with file system APIs, packaging using MSIX.Advanced Modularization & Play Feature Delivery :- Experience building modular Flutter applications for Android using :1. Play Feature Delivery / Play Asset Delivery (PAD).2. Dynamic delivery via Android App Bundles (Split AABs).3. Knowledge of feature modules, conditional delivery, on-demand loading.4. Setting up base modules and feature modules using Gradle and integrating Flutter modules correctly.- Understanding of Flutter module integration into existing native Android apps.- Experience managing feature flags, lazy loading of sub-features, and optimizing app size using dynamic feature delivery.- Familiarity with Windows modular packaging and Web lazy-loading strategies.Architecture & State Management :- Applied experience with scalable architecture (Clean Architecture, MVVM).- Expert in state management solutions- Provider, Riverpod, BLoC (Mandatory), GetX, or Cubit.- Dependency injection using packages like get_it and injectable.API Integration & Data Management :- Integration with REST APIs using http, dio, and code-gen tools like json_serializable.- Local storage management using Hive, Isar, sqflite.- Experience with secure storage (flutter , secure ,storage) and authentication flows (OAuth, Firebase Auth).Platform Channel & Plugin Integration :- Deep understanding of using Platform Channels to invoke native Android (Kotlin/Java) and iOS (Swift/Obj-C) code.- Building or customizing Flutter plugins for device-level features.- Working knowledge of native SDK integrations (e.g., barcode scanners, camera modules, third-party services).App Lifecycle, Navigation & UI/UX :- Lifecycle management using WidgetsBindingObserver and platform-specific event handling.- Custom navigation with Navigator 2.0, go_router, or auto_route.- Implementing adaptive and responsive and dynamic(Json driven) UI for mobile, web, and desktop.Testing & Performance Optimization :- Writing Unit, Widget, and Integration Tests using Flutter's testing framework.- App profiling and memory leak detection using DevTools.- App size optimization, lazy-loading assets/modules, and performance tuning across Devices. (ref:hirist.tech)