I build apps that ship, not just prototypes.
Mobile-first, backend-capable. I spend most of my time in Flutter and Riverpod, but I'm just as comfortable writing the ASP.NET Core API underneath.
Also searched as Mostafizur Rahman or Mustafizur Rahman — same person, one spelling.
Six apps, one habit of finishing them.
A mix of client contracts and products I built end to end — from UI down to the database schema.
Hishabee
Offline-first business ledger for shop owners — invoices, inventory, expenses, Excel import/export, localized into four languages.
KitchenNmbrs
A food-cost and HACCP compliance tool built for working kitchens — margins and safety checks in one place.
Ride Together
A real-time group bike ride tracker — live rider locations with last-known-position fallback when someone drops off the mesh, distance-from-group and stopped alerts, route planning with elevation, and Bluetooth/WiFi Direct mesh fallback for areas with no signal.
NexTalk
Real-time chat app with a SignalR backend and a Flutter client — previously deployed on Railway, including chasing down a monorepo build config that Railway wouldn't detect. No longer live.
Treesoft Office Mobile
An office companion app I built during my time at Liasoft, live on the App Store.
BSFM Cleaning Service
A cleaning-service app built for a client during my time at Liasoft, live on both the App Store and Google Play.
Four lanes, running at the same time.
Not a career history — this is what's active right now.
RentYard Inc.
Flutter developer as part of the core team at RentYard, a product-based company.
Liasoft
Flutter development on the treesoft-app codebase and client apps — shipped Treesoft Office Mobile for the company's client base.
Upwork & Fiverr
Rising Talent on Upwork, taking on Flutter UI and ASP.NET Core backend contracts through Project Catalog listings and direct bids.
Personal products
Hishabee — built, shipped, and maintained on my own time.
What's in daily rotation.
Honest gauge readings — not everything's at full tank, and that's fine.