Three roles, one relentless focus on shipping.

Current · in parallel

1. Present Own Company

   Owner

   ArivonIT

   Bangladesh

   • Own and run ArivonIT, publishing Android apps on Google Play under the ArivonIT developer account.
   • Shipped CamAllScanner — an offline-first document scanner with on-device OCR, PDF tools, and an encrypted local vault.
   • Shipped Scientific Calculator (NovaCalc) — a full expression parser, interactive function graphing, and an offline CAS engine.
   • Own each product end to end — product direction, Flutter development, UI/UX, and Play Store releases.
2. Present Banking Apps

   Assistant Programmer

   MicroMac Techno Valley Ltd.

   Bangladesh

   • Contributing to the development of banking / financial mobile applications for clients including City Bank and BRAC Bank, as part of the core engineering team.
   • Applying Android and cross-platform development practices in a regulated, security-conscious banking environment.
   • Built the Litigation Management System for BRAC Bank's Legal Division in Flutter — case tracking, Customer 360° views, and legal team / head office workflows across Android and iOS.
   • Developed city_fast_approver for City Bank — an internal Flutter app for loan and card file approval, credit bureau checks, and technical / legal valuation review.
   • Also contributing to LOS (Loan Origination System), another City Bank mobile application.
3. Since March 2025 Cross-Border E-Commerce

   Team Lead, Mobile App Development

   Bideshibazar e.U

   Vienna, Austria · Remote

   • Developed and maintained the Bideshibazar app in Android (Java), then rebuilt it with Flutter for iOS — live on both the Google Play Store and Apple App Store.
   • Built Bideshibazar Seller entirely with Flutter for Android and iOS, currently live on the Google Play Store.
   • Designed intuitive, responsive UI/UX with XML layouts, Flutter widgets, and Material Design principles.
   • Integrated Firebase Authentication for secure login, OTP verification, and real-time database features.
   • Connected apps to backend REST APIs using Retrofit2 for dynamic product, user, and order management.
   • Implemented Room Database and SharedPreferences for local storage and offline functionality.
   • Built background services with WorkManager and BroadcastReceiver for real-time order tracking and data syncing.
   • Integrated Google Sign-In, Apple Sign-In, and Google Maps for location-based features.
   • Configured FCM push notifications for order updates, promotions, and alerts.
   • Managed app deployment, versioning, and updates on both the Google Play Store and Apple App Store.