Hire Me
Full-Stack Mobile Developer · Android · Flutter · iOS · KMP

Hi, I'm Hussain

6+ years building high-performance apps across Android, Flutter, iOS, and KMP. Clean Architecture, monetization strategy, and 50M+ downloads.

hussain@android ~
 
Measurable Impact

Key Achievements

50M+

Total Downloads

99.9%

Crash-Free Rate

+30%

Revenue Growth

50+

Apps Built

 
Skills

Technologies & Core Capabilities

Languages

Kotlin as primary language, Java for legacy systems, Swift for iOS, Dart for Flutter, and C++ for low-level optimization.

Kotlin (expert)JavaSwiftDartC++

Android

Building reactive, scalable UIs with Jetpack Compose and handling complex background operations with Coroutines and WorkManager.

Jetpack ComposeRoomWorkManagerViewModelCoroutines

Cross-Platform

Delivering cross-platform experiences from a single codebase via Flutter and shared business logic via Kotlin Multiplatform.

FlutterKMPReact Native

iOS

Native iOS development with Swift and UIKit, App Store publishing, and compliance with Apple platform guidelines.

SwiftUIKitSwiftUIApp Store

Architecture & DI

Designing testable, maintainable codebases using Clean Architecture, MVVM, MVI, and SOLID patterns with Hilt, Dagger 2, and Koin.

Clean ArchitectureMVVMMVISOLIDHiltKoin

Data Layer

Architecting offline-first solutions with Room and DataStore, synchronizing with Firebase RTDB and Firestore.

RoomSQLiteDataStoreFirebase RTDBFirestore

Networking

Robust networking layers for RESTful APIs and real-time sockets with secure, efficient data transmission.

Retrofit2OkHttpWebSocketsREST APIs

Monetization

Deep hands-on experience with AdMob, Facebook Audience Network, A/B testing, and eCPM optimization for sustainable revenue without hurting retention.

AdMobFacebook Audience NetworkA/B TestingeCPM OptimizationIAP

Cloud & Analytics

Leveraging Firebase and GCP for backend services, with deep knowledge of Play Console and App Store Connect.

FirebaseGCPGoogle Play ConsoleApp Store Connect

Testing

Ensuring application stability through comprehensive unit, integration, and UI testing suites.

JUnitEspressoUI AutomatorLeakCanary

Deployment & Quality

Managing the full lifecycle from CI/CD pipelines to Play Store and App Store compliance, automated code quality checks.

Play StoreApp StoreGitHub/GitLabGradleProGuard/R8Lint/Detekt

System Design & Leadership

Leading engineering teams, defining technical roadmaps, and designing scalable system architectures for complex mobile applications.

System DesignTech LeadershipAgile/ScrumMentoringCode Review
 
Visit my portfolio and keep your feedback

Featured Projects

Custom Ads SDK
SDK +30% Rev

Custom Ads SDK

Reusable ad-mediation SDK (AdMob, AppLovin, IronSource) with GDPR/CCPA consent. Standardized monetization across portfolio. Drove +25–30% revenue uplift.

Universal TV Remote
Android App Popular

Universal TV Remote

Mobile-keyboard-to-TV input & Google Voice transcription. Protobuf-based command schema for reliable message delivery and seamless remote control.

Nature Photo Editor
Android App 10M+

Nature Photo Editor

GPU-accelerated AI background removal. Eliminated ANR clusters & improved frame-rendering. Scaled to 10M+ installs through performance-led UX.

Screen Mirroring
Android App 500K+

Screen Mirroring TV

Java→Kotlin streaming migration. Reduced user drop rate 27%→6% with reconnection improvements. Latency-aware buffering for 500K+ users.

Fast Share Transfer
Android App 5M+

Fast Share Transfer

WhatsApp-style media & chat-backup workflows. Secure peer-to-peer transfer with optimized compression. High-speed sharing with minimal data loss.

AI Language Translator
Android App ML Kit

AI Language Translator

ML Kit + GPT translation with on-device OCR for low latency. Increased retention +18–22% through adaptive ML-driven UX.

BP Monitor
HealthTech 500K+

BP Monitor

Health monitoring with MPAndroidChart visualization for trends. Clean MVVM architecture with reliable local data persistence via Room.

Bright Flashlight
Android App 500K+

Bright Flashlight

Feature-rich flashlight with call/SMS alerts, LED name display & custom patterns. Optimized for low battery consumption and quick startup.

Cross Wind
HealthTech Emergency

Cross Wind: 911

Online booking flows for rapid doctor availability & scheduling. Optimized messaging architecture for reliable, low-latency medical interactions.

The Majestic Quran
iOS App 4.7 · Education

The Majestic Quran

Complete Quran with refined Arabic typeface, English translation, and multiple audio recitations. Built with Swift/UIKit, offline-first architecture, and optimized text rendering.

Calm Planner
iOS App Productivity

Calm Planner

Minimal to-do app with Now / Next / Later focus zones. One task at a time philosophy to reduce cognitive load. SwiftUI with smooth state transitions and widget support.

WaterDone
iOS App Health & Fitness

WaterDone

1-tap hydration tracker with Lock Screen & Home Screen widgets. Visual daily progress, minimal 1.4 MB footprint. Built with SwiftUI + WidgetKit, iOS 17.5+.

Flutter   Cross-Platform

ShopMate — E-Commerce App

Cross-platform e-commerce app built with Flutter & Dart. Clean Architecture with BLoC state management, Firebase backend, Stripe payments, and animated product carousels.

Flutter   Cross-Platform

FitTrack — Fitness Tracker

Flutter fitness tracker with step counting, workout logging, and progress charts. Riverpod state management, local SQLite via Drift, custom animated progress rings.

Flutter   Cross-Platform

NewsWave — News Reader

Flutter news aggregator with category filtering, offline reading via Hive, and adaptive dark/light themes. REST API integration with paginated infinite scroll and share intent.

KMP SDK Shared Logic

CoreSDK — KMP Shared Module

Kotlin Multiplatform shared business-logic layer targeting Android & iOS. Covers networking (Ktor), data persistence (SQLDelight), domain models, and use cases — zero platform duplication.

KMP   Multiplatform

SpendSmart — Budget Tracker

KMP budget tracker with shared domain and data layers. Android UI in Jetpack Compose, iOS UI in SwiftUI. SQLDelight for cross-platform persistence, Ktor for REST sync.

KMP   Multiplatform

NoteSync — Cross-Platform Notes

KMP notes app with real-time Firebase sync. Shared ViewModels via Kotlin Flow, rich-text editing, tag-based search. Compose Multiplatform UI experiment with 90%+ shared code.

RecipesApp
Open Source 7 Stars · Java

RecipesApp

Android recipe discovery app using Firebase, Room Database, and Retrofit. Search, save, and browse recipes with offline-first architecture and clean MVVM structure.

PixelPerfect
Open Source 7 Stars · Java

PixelPerfect

Final Year Project — mobile app for high-quality image capture and editing. Camera2 API, custom filters, image cropping and export pipeline built in Java.

DaggerHilt Posts App
Open Source Kotlin · DI

DaggerHilt Posts App

Android MVVM reference app with Dagger Hilt, Kotlin Flow, and Coroutines. Demonstrates clean DI wiring, ViewModel scoping, and Repository pattern with a REST API.

Gallery App
Open Source Kotlin · Compose

Gallery App

Clean Architecture gallery app with Jetpack Pagination 3 and Jetpack Compose UI. Efficient image loading with Coil, infinite scroll, and smooth grid transitions.

SnapshotScramble
Open Source 2 Stars · C++

SnapshotScramble

Unique puzzle game where players unscramble a picture by sliding and swapping pieces. Built with C++ using efficient grid algorithms for piece state management and win detection.

 
Experience

Professional Experience

Senior Android Developer

Beyond Apps Group
CURRENT Jan 2026 – Present · Lahore
  • Leading multi-module Android video editor (MyZesty) using MVVM/MVI, Kotlin & Java
  • End-to-end development of Genie, an AI-powered video maker and editor
  • Integrating ML features, collaborating with ML and backend teams
  • Conducting code reviews and upholding engineering best practices

Principal Software Engineer → Senior Android Developer

OZI Publishing
Jun 2024 – Jan 2026 · 1 yr 8 mo · Lahore
Principal Software Engineer · Jun 2025 – Jan 2026 Senior Android Developer · Jun 2024 – May 2025
  • 50M+ downloads portfolio; ads SDK with SOLID architecture boosting match/show rates
  • Monetization strategy via AdMob & Facebook Audience Network; 99%+ crash-free rate
  • Mentored Android engineers; maintained app stability and ANR rates

Senior Android Developer

Jeux Developers
Jun 2022 – May 2024 · 2 years · Sahiwal
  • Led Android development lifecycle with Kotlin & Java; performance optimization
  • Delivered service-oriented apps with booking & payment flows; integrated AdMob & IAP
  • Mentored junior developers; conducted code reviews and architecture design

Android Developer → Junior Android Developer

Facile Solutions
Jul 2020 – Jun 2022 · 2 years · Sahiwal
Android Developer · Jul 2021 – Jun 2022 Junior Android Developer · Jul 2020 – Jun 2021
  • End-to-end app development with Java & Kotlin; collaborated with UI/UX designers
  • Migrated app (1M+ users) from Java to Kotlin; built real-time Firebase features
 
Education & Courses

My Educational Background

BS Information Technology

Bahauddin Zakariya University (2018 – 2022)

Achieved 3.77/4.0 CGPA. Developed major Android projects, including an Islam360 replica and a puzzle game using OpenCV.

Google Associate Android Developer Certification

LinkedIn Learning

Mastered advanced UI, MVVM, live data, and coroutines. Developed complex apps and improved performance.

The Complete Android Oreo Developer Course

Udemy

Built 23 apps using Java, SQLite, Firebase, and REST APIs, covering both minor and major projects in Android development.

 
Features

What I Do

Mobile App Development

Build high-performance Android apps using modern frameworks and best practices.

App Optimization & Maintenance

Enhance app stability and performance, ensuring a smooth user experience.

UI/UX Design

Create engaging and intuitive interfaces based on modern design principles.

API & Backend Development

Integrate robust APIs and backend services for seamless app functionality.

In-App Monetization

Implement effective monetization strategies to maximize app revenue.

Project Management

Lead teams in an Agile environment for efficient and timely project delivery.

 
Knowledge Sharing

Blog & Articles

Medium Articles

Technical articles about Android development, Kotlin best practices, and modern app architecture patterns.

Technical Writing
Read Articles

StackOverflow Contributions

Helping developers solve Android challenges. Answers on Kotlin, Jetpack Compose, AdMob, and Play Store issues.

Community Help
View Profile

Open Source Projects

Code samples, Android libraries, and open-source contributions. Explore my repositories and project showcases.

Code Samples
View GitHub