Tanjim A.

✅ 100% Job Success • 30+ Upwork jobs completed • ⏱ 700+ hours • ⭐ 20+ client reviews I help founders and small businesses get mobile apps built, fixed and shipped: subscription apps, booking and scheduling tools, CRMs and marketplaces with real payments, maps and a backend behind them. 🛠 WHAT I CAN DO FOR YOU • Plan the app with you: user flows, screens and features, so it's simple to use and the first version stays focused • Design the architecture so the app stays fast, stable and easy to extend as it grows • Build a new iOS and Android app from one Flutter codebase • Add subscriptions and payments (RevenueCat, Stripe, Stripe Connect) • Build the backend and an admin panel so your team can manage content without a developer • Get the app through App Store and Google Play review, and keep it updated after launch • Take over an existing app and fix what's actually broken, without a needless rewrite 📱 APPS I'VE WORKED ON • Range Buddy: shooting-range app with real-time sync, multi-party payments and subscriptions • Nightingale: in-car audio app with Apple CarPlay, Android Auto and offline mode • Dent Shop Manager: CRM for auto-body shops with a .NET backend and Stripe payments • Schedule Pro (Shiftboard): native app rebuilt in Flutter, phone and tablet • SafeMom: inherited a live app, fixed stability issues, added a paywall 🏢 INDUSTRIES Sports and recreation • Automotive services • Workforce scheduling • Health • E-commerce • In-car audio 🔄 HOW I WORK Short call to understand the scope → fixed plan and milestones → test builds on your phone every week or two → store release → ongoing support 💬 WHAT CLIENTS SAY "I have hired Tanjim many times, and I would still do it again whenever any need arises. He is very professional and committed." "Completed all work above expectations and in a timely manner, with the work being completed ahead of deadlines." "Did the job well, quickly, and was great with communication. Would hire again." If you have an app idea or an app that needs rescuing, send me a message and I'll tell you honestly how I'd approach it.