Staff Engineer

We are building a unified ecosystem for 200,000+ Daily Active Users. Our goal is technical parity: whether a user interacts with us via a browser or a mobile app, the experience must be instantaneous and reliable. As a Staff Engineer, you will own the architectural bridge between our Next.js web platform and our Flutter mobile application, ensuring a "Write Once, Run Anywhere" philosophy that actually works at scale.

Responsibilities:

1. 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.

2. High-Scale Performance (Mobile & 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 & 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.

3. Infrastructure & Reliability

• Universal CI/CD: Architect a pipeline that handles Fastlane for mobile deployments and optimized Vercel/Docker builds for web, ensuring a unified release cadence for 200k DAU.

• Observability: Set up cross-platform monitoring using Sentry, New Relic, or Firebase Crashlytics to maintain a 99.9% crash-free session rate across all devices.

Success Metrics (Your KPIs)

• Performance: Achieve a < 2s "Time to Interactive" on Web and a < 500ms App Launch time on Mobile for the 95th percentile.

• Reliability: Maintain a combined Client-Side Error/Crash Rate < 0.03%.

• Efficiency: Increase engineering velocity by achieving >30% code/logic reuse between the Web and Flutter codebases.

• App Quality: Maintain a minimum 4.5-star rating on the App Store/Play Store through rigorous performance and UX engineering.

Technical 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.

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

The "Staff" Level Impact

• The Bridge-Builder: 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.

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

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