Flutter Product Engineer — Web & Mobile

About us

House of Biryan (Prosperous Brands Pvt Ltd) is a fast-growing, delivery-first biryani brand around 30 cloud kitchens across India and 6 in Dubai, selling through Zomato, Swiggy and the Gulf aggregators. The business runs on OPX, our in-house operations platform: attendance, rosters, inventory and stock, store maintenance, complaints, assets, HRM and a live command centre integrated with Rista POS, delivery-platform data and in-store IoT telemetry.

OPX is entering a major modernize-and-scale phase as the brand expands across geographies. We are hiring its founding full-time engineering team a small crew of 2–3 engineers who will run, build and scale the platform end-to-end. You will ramp up through a structured hand-over with real tasks alongside the current engineering transition team, and then own the platform outright.

The role

You own the faces of OPX: a production Flutter Web application the daily tool for stores, area managers and HQ across two countries and its companion Android app. This is product engineering on a live system: extending, improving and modernizing real screens people use every day, and shipping the new modules the expansion roadmap needs.

You will

•    Own the Flutter Web app end-to-end: new modules (dashboards, inventory and stock flows, complaint workflows, command-center views), UX quality, and performance initial load, lazy loading, caching, large-table rendering.

•    Maintain and evolve the companion Android app (attendance and GPS use-cases).

•    Work brownfield-first: read existing code, extend it safely, and refactor screens toward a clean state-management architecture as you touch them no big-bang rewrites of a live tool.

•    Integrate against the OPX REST API; co-design contracts with the platform lead; handle nested payloads, serialization, and empty/error/loading states properly.

•    Build data-dense UI well: role-scoped dashboards, charts, filterable tables, exports.

•    Add tests where they pay (widget and unit tests around business-critical flows) and keep releases small.

Must have

•    2+ years shipping production Flutter/Dart applications, including at least one you supported after launch.

•    Flutter Web experience strongly preferred (renderers, responsive desktop layouts, browser quirks) or deep mobile Flutter plus clear evidence you can cross over fast.

•    Solid state management (Provider, Bloc or Riverpod) and async, REST and JSON fundamentals.

•    Comfort joining an existing codebase: you can navigate, diagnose and improve code you did not write.

•    Design-to-widget fidelity (Figma or similar) and an eye for responsive, data-dense layouts.

Nice to have

•    Charting and data-visualization libraries; Android release/Play Store experience; localization.

•    Basic PHP/SQL literacy enough to read the API you consume.

•    QSR or retail-operations domain exposure.