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Muzammil Siddiqui

@muzammilsiddiqui

Android Developer at Dolphin Advanced Technology Services who integrated payment terminals and printers into a live POS app.

Pakistan

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At Dolphin Advanced Technology Services, I worked on a live POS tablet application, integrating PAX A35 payment terminals, Star receipt printers, and Brother SDK label printers. I also implemented Room-based transaction caching so checkout could continue through network outages.

At Nanosoft Technologies, I developed Android features from requirements through Google Play Store deployment and built an offline-first Break Management feature with Room and WorkManager. I also contributed to Flutter development and mentored junior developers.

Experience

Work history, roles, and key accomplishments

Android Developer

Dolphin Advanced Technology Services

May 2026 - Sep 2026 (4 months)

Owned reliability and performance for a live POS tablet application, integrating payment terminals and printers. Implemented offline-first data handling and resolved crashes to improve transaction success rate.

Kotlin Jetpack Compose MVVM MVI Clean Architecture ROOM PAX A35 TCP IP Star Printer Brother SDK Offline First Transactional Caching Crash Resolution

Software Engineer (Android & Flutter)

Nanosoft Technologies

Feb 2022 - May 2026 (4 years 3 months)

Led end-to-end feature development for client Android apps, including an offline-first Break Management feature. Reduced crash rates and mentored junior developers.

Kotlin Jetpack Compose MVVM MVI Coroutines ROOM WorkManager StateFlow SharedFlow Firebase Crashlytics REST APIs Hilt Koin Flutter Dart BLoC Cubit

Associate Software Engineer

EvolutionWing

Jul 2021 - Feb 2022 (7 months)

Built UI components and features for Android applications under mentorship, applying Kotlin, Room, and Retrofit. Partnered with QA to resolve release-blocking issues.

Kotlin ROOM Retrofit Agile Git