The core responsibilities for the job include the following :

Multi-Platform Architecture :

- Unified Design System: Architect a design system (using Tools like Flutter-Web or Figma-to-Code pipelines) that ensures visual and functional consistency across Web, iOS, and Android.

- Shared Logic Strategy: Lead the strategy for sharing business logic (Auth, State Management, API layers) across platforms, leveraging TypeScript for web and Dart for Flutter, or exploring Kotlin Multiplatform (KMP) for core logic.

- Hybrid Interop: Manage the complexities of WebViews and JS Bridges within hybrid environments, ensuring seamless data passing and authentication persistence between native and web layers.

High-Scale Performance (Mobile and Web) :

- Flutter Optimization: Optimize Flutter rendering for 60 FPS performance. You'll be responsible for identifying and fixing "jank" using DevTools, optimizing heavy list views, and managing complex widget trees.

- Binary Size and Bundle Management: Maintain strict budgets for App Store/Play Store binary sizes and Web JS bundles to ensure high conversion in regions with varied network conditions.

- Over-the-Air (OTA) Strategy: Implement and manage OTA update systems (like Shorebird for Flutter or custom CodePush-style solutions) to bypass store delays for critical hotfixes.

Requirements :

- Deep Flutter Expertise : 4+ years of Flutter experience with a deep understanding of Provider, Riverpod, or BLoC patterns and the Dart FFI.

- Modern Web Mastery: Expert-level React 19+, Next.js, and TypeScript.

- The "Hybrid" Bridge: Proven experience shipping high-traffic apps that utilize Native Channels or specialized Platform-specific implementations.

- Scale Experience: You have previously managed a frontend ecosystem for a product with at least 1 Lakh+ DAU.

- Knowledge of how to optimize for low-end Android devices and older browser versions without compromising the experience for high-end users.

- You don't just write Flutter or React; you define how they talk to each other. You are the final word on cross-platform technical debt.

- You will upskill Web engineers in Dart/Flutter and vice versa, creating a truly "T-shaped" engineering culture.

- You stay ahead of the curve, evaluating the impact of Wasm, Server-Driven UI, and AI-generated layouts on our specific scale.