Android app development
Building responsive apps from an empty project and taking over existing codebases without breaking them. Kotlin first, Java where the codebase asks for it.
Android Developer · Islamabad, PK · Open to work
I build Android apps
people keep installed.
Four years in Kotlin and Java, shipping to the Play Store — utility, media and personalization apps that survive real users, real reviews and real crash reports.
4,710,000+
Combined installs across the apps listed below
- 34+apps shipped
- 4years in production
- 3ad networks integrated
- Kotlin
- Java
- Jetpack Compose
- MVVM
- Room
- Retrofit
- Firebase
- AdMob
01 — About
Who am I?
I'm an Android developer who ships. Not prototypes — apps that live on the Play Store, take real traffic, and get updated when users complain.
I work in Kotlin and Java, structure apps around MVVM, and use Room for local storage and Retrofit for everything over the wire. Firebase handles the rest: Remote Config for shipping changes without a release, Crashlytics for finding what broke, Cloud Messaging for bringing people back.
Monetization is part of the job, so I've integrated AdMob, AppLovin and Unity Ads — placed carefully enough to earn without driving people to uninstall. Lately I've been moving my UI work over to Jetpack Compose.
- Based in
- Islamabad, Pakistan
- Experience
- 4+ years, since May 2022
- Education
- BS Computer Science — Preston University Islamabad, 2024
- Currently
- Android Developer at 3TechSoft
- Languages
- English, Urdu
- Availability
- Full-time, contract, remote
02 — What I do
Where I'm useful
MVVM & Room
Apps structured so features can be added without rewriting screens. Room for local persistence, plus MVC and MVP on legacy projects that already use them.
Performance & stability
Faster cold starts, smoother lists, fewer ANRs. I chase crashes through Crashlytics and log analysis until the rate actually drops.
Ad network integration
AdMob, AppLovin and Unity Ads, with placement tuned for revenue that doesn't cost retention. Waterfalls, formats, frequency capping.
REST API integration
Retrofit and OkHttp, coroutines and Flow, sensible error and offline states so a dropped connection isn't a blank screen.
Firebase & push messaging
Cloud Messaging and Remote Config wired up to drive engagement without shipping a new release for every change. Firebase Functions for backend logic, Firebase Hosting for the surrounding web pieces.
Google Play Billing
Subscriptions, one-time products and consumables wired through the Play Billing Library, with purchase verification and entitlement state that survives refunds and restores.
Toolbox
- Kotlin
- Java
- Jetpack Compose
- XML layouts
- Coroutines
- Flow
- MVVM
- MVP
- MVC
- Room
- SQLite
- Retrofit
- OkHttp
- REST
- Navigation Component
- WorkManager
- Material Design 3
- Firebase Remote Config
- Crashlytics
- Cloud Messaging
- Firebase Hosting
- Firebase Functions
- Play Billing Library
- Subscriptions
- In-app purchases
- AdMob
- AppLovin
- Unity Ads
- Git
- Gradle
03 — Experience
Where I've worked
-
Android App Developer
3TechSoft
- Build and maintain Kotlin applications with performance, stability and reliability as the release bar.
- Integrate AI-based features into existing products to extend what the apps can do.
- Run monetization across AdMob, Unity Ads and AppLovin without degrading the experience.
- Write reusable adapters, base classes and utilities that cut duplication and speed up new features.
- Extend Islamic apps — Quran, Tasbeeh and prayer times — with new features and bug fixes.
- Improve multilingual voice keyboards for Urdu, Arabic and Amharic.
- Track down crashes proactively through Crashlytics and log analysis.
-
Android App Developer
Funprime Technologies
- Developed apps from scratch and modernized existing ones on MVVM with Room for local data.
- Shipped Firebase Remote Config, Crashlytics and Cloud Messaging for engagement and stability.
- Integrated Retrofit and REST APIs with reliable data handling across network conditions.
- Applied MVC, MVP and MVVM as each codebase required, keeping structure maintainable.
- Implemented AdMob monetization tuned for minimal user disruption.
- Followed Material Design guidelines for responsive, modern UI.
-
Android App Developer
Compulogic Standard Solutions
- Turned concepts and designs into working Android applications in Java and Kotlin.
- Used Firebase and SQLite for data storage and management.
- Integrated third-party libraries and SDKs across multiple products.
- Managed live Play Store apps: updates, review monitoring and acting on user feedback.
- Integrated AdMob and AppLovin for monetization.
-
BS Computer Science
Preston University Islamabad
- Bachelor's degree completed alongside full-time Android work from 2022 onward.
04 — Work
Apps I've shipped
34+ apps · 4.7M+ combined installs
VPN Browser: Private Incognito
A built-in browser with one-tap VPN and ad blocking, so private tabs stay private without a second app.
10K+ installsGoogle Play
Mahjong Boss: Match Tiles Saga
A tile-matching puzzle board game with hundreds of layouts, hints and an untimed, no-pressure mode.
50+ installsGoogle Play
English Dictionary Offline
Offline dictionary and thesaurus with voice search, translation and a built-in keyboard for word lookups.
5M+ installsGoogle Play
Urdu to English Translator
Two-way Urdu-English translation with offline dictionary lookups, voice input and phrase history.
5M+ installsGoogle Play
AL Quran Kareem – Holy Quran
Full Quran text and audio, live Qibla direction and accurate prayer times with adhan alerts, offline-capable.
1M+ installsGoogle Play
Easy Arabic Voice Keyboard
Speak and get Arabic typed for you — a voice-to-text keyboard for people who type faster than they write.
1M+ installsGoogle Play
Daily Quran Majeed Offline
Full offline Quran with word-by-word translation and MP3 recitation from multiple qaris, no connection needed.
1M+ installsGoogle Play
Holy Quran: 16 Lines Per Page
The classic 16-lines-per-page Mushaf layout with offline MP3 recitation and translation in multiple languages.
500K+ installsGoogle Play
Fast Urdu Voice Keyboard
Phonetic Urdu-English typing with voice input, built for switching between both languages without switching apps.
1M+ installsGoogle Play
Easy English Voice Keyboard
Dictate instead of type — accurate speech-to-text built into the keyboard for messages, notes and search.
1M+ installsGoogle Play
Video Downloader & Locker
Download videos in HD from multiple platforms and keep private ones behind a password-protected locker.
500K+ installsGoogle Play
Photo Editor & Quotes Maker
Filters, stickers, frames and effects, plus a quote builder with custom fonts and layouts for social posts.
500K+ installsGoogle Play
Speech to Text & Text to Speech
Turn speech into accurate text and text into natural speech — built for notes, accessibility and productivity.
500K+ installsGoogle Play
AI Photo Maker
Face swap, AI headshots and text-to-image generation, wrapped in a flow that finishes in a few taps.
100K+ installsGoogle Play
Ai Quran Pak GPT
An AI assistant built on Quranic guidance for Ramadan planning, duas and everyday questions, in plain language.
100K+ installsGoogle Play
Smart Multi Tools
One utility app holding the everyday set: flashlight tools, compass, image to PDF, PDF viewer and speech notes.
50+ installsGoogle Play
PDF Viewer & Image to PDF
Read PDFs, convert photos and screenshots into clean PDF files, and keep everything in one place.
10+ installsGoogle Play
Video to Audio Converter
Pull MP3, AAC and other audio out of any video — soundtracks, songs, dialogue — quickly and at full quality.
10+ installsGoogle Play
Mute Video
Strip background noise, music or conversation out of any clip for clean, silent footage ready to edit.
10+ installsGoogle Play
Audio Remover Pro
Strip audio out of any video in a couple of taps, keeping the original quality and export format intact.
1+ installsGoogle Play
Video to Audio Pro
A faster, ad-lighter take on video-to-audio extraction with batch conversion and more output formats.
1+ installsGoogle Play
Speech to Text Pro
Fast, accurate speech-to-text for long-form dictation — notes, transcripts and messages, no manual typing.
10+ installsGoogle Play
WiFi Password Scan & Map
Scan nearby WiFi networks, check signal strength and find hotspots on a live map, with saved passwords for known networks.
5K+ installsGoogle Play
Digital Compass & Weather
A sensor-backed compass paired with live weather, forecasts and temperature tracking for your location.
250K+ installsGoogle Play
Fingerprint Live Wallpaper
Animated lock screens with smooth unlock transitions and effects that hold up at 60fps on mid-range devices.
50K+ installsGoogle Play
Business Card Maker
Templates, fonts, colours and logo placement for professional cards you can save and share as a digital card.
100K+ installsGoogle Play
Prank Call
Schedule a convincing fake celebrity call, complete with incoming-call screen and audio, for a set-up that lands.
100K+ installsGoogle Play
Football Keyboard Themes
Club crests, national flags and pitch-green themes for the keyboard, with new packs added every season.
10K+ installsGoogle Play
Tasbeeh Counter
A digital tasbeeh with haptic taps, custom dhikr targets and counts that carry over between sessions.
50+ installsGoogle Play
Quran Majeed – Islamic App
Quran reading paired with a digital tasbeeh and dhikr counter, haptic taps and custom targets, in one app.
1K+ installsGoogle Play
Voice Reverse — Flip Singing
Record a voice or song and flip it backwards instantly — a quick way to catch hidden lyrics or just mess around.
1K+ installsGoogle Play
Funny Sounds Horn
A soundboard of realistic prank effects — air horn, siren and more — built for instant playback.
1K+ installsGoogle Play
Battery Charging Animation
Charging animations, sounds and effects, with battery status tracking that looks like part of the system.
100K+ installsGoogle Play
Flash Alerts on Call
LED flash alerts for incoming calls and notifications, so nothing gets missed even on silent.
10K+ installsGoogle Play
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05 — Writing
Tutorials I've published
Detecting incoming calls and displaying the phone number in Android Studio
Reading call state in Java, handling the permissions properly, and showing the caller's number.
ReadBuilding a QR code and barcode scanner app in Android Studio
A working scanner in Java, from camera permission through to decoding and handling the result.
ReadBottom Navigation View with Navigation Component in Kotlin
Wiring a bottom bar to a navigation graph so back-stack behaviour stays correct across tabs.
Read06 — Contact
Got an Android project?
Hiring, contracting, or need someone to take an existing app off your hands — email is the fastest way to reach me.
aahsanaahmed26@gmail.com