Ehsanul Hoque

Ehsanul Hoque

Mobile Application Development Engineer

Dhaka, Bangladesh

About

I've spent five years shipping Android apps in Kotlin and Java — real-time chat over WebSocket, WebRTC voice calls, in-app billing on Google and Huawei, offline sync, encrypted downloaders, custom views, and the unglamorous infra that keeps the apps stable in the hands of users on a thousand different phones.

Currently shipping for Numrah (remote from Dhaka), where I've built two Android apps from scratch and helped pull a legacy Kotlin app from a 2.5-star rating up to 4.5 by chasing crashes and migrating it from RxJava to Coroutines and Flow. Before that, two product orgs in Dhaka — native Android, Flutter cross-platform, an app that crossed a million users.

I like the boring half of the work: the WebSocket reconnect that survives a dropped connection, the encrypted downloader that streams chunks without spiking RAM on a budget phone, the Gradle plugin you can delete to cut build times in half, the Python script that automates the release. I write here occasionally about what I learn — the notes are mostly for future me, but you're welcome to read them.

Off-keyboard: long walks across Dhaka, slow coffee, and the occasional half-finished side project that taught me something useful before it died.

Stuff I work with

A working list, updated when it stops being true.

Languages
  • Kotlin
  • Java
  • Python
  • TypeScript
  • Dart
Android
  • Coroutines + Flow
  • Jetpack Compose
  • Hilt / Dagger 2
  • Room
  • Jetpack Navigation
  • RxJava
Real-time & media
  • WebRTC
  • WebSocket
  • ExoPlayer
  • Background services
  • Push notifications
  • Lottie
Backend nearby
  • Firebase / Firestore
  • Cloud Functions
  • Node + Express
  • REST APIs
  • Statsig
Build & ship
  • Gradle (Kotlin DSL)
  • Fastlane
  • GitHub Actions
  • Play Console
  • Huawei AppGallery
  • Crashlytics
Comfortable with
  • Google + Huawei Billing
  • A/B testing
  • MVVM + Clean Architecture
  • JUnit + Mockito + Appium
  • Kotlin Multiplatform
  • Flutter

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