Native Android Developer

Muhammad Usman

Kotlin & Compose Specialist

100% Job Success on Upwork

Building scalable Android apps that millions of users love. Specializing in Kotlin, Jetpack Compose, and Clean Architecture. From startups to global enterprises, I turn ideas into high-performance mobile experiences. πŸš€

3+ Years Experience
10M+ Total Downloads
50+ Projects Completed
Hire Me on Upwork View My Apps
Muhammad Usman - Android Developer

Skills & Technologies

The Android tech stack I use to build exceptional apps

Mobile Development

Kotlin Java Android SDK Jetpack Compose Material Design 3 XML Layouts Custom Views RxJava

Architectures & Patterns

MVVM Clean Architecture Modular Design Repository Pattern Dependency Injection Hilt Dagger

Backend & APIs

Firebase Auth Firestore FCM REST APIs Retrofit Room Database SQLite

Tools & Performance

Android Studio Git & GitHub Gradle WorkManager Memory Optimization ProGuard Performance Profiling CI/CD

Why Hire Me?

What makes me different from other Android developers

Proven Track Record

With 50+ completed projects and apps reaching 10M+ downloads, I don't just build appsβ€”I build apps that scale and succeed in the market.

  • 10M+ combined app downloads
  • 100% Job Success on Upwork
  • 4.5+ average app ratings

Modern Tech Stack

I specialize in cutting-edge Android development using the latest technologies that ensure your app is future-proof and maintainable.

  • Kotlin & Jetpack Compose expert
  • Clean Architecture & MVVM
  • Firebase, REST APIs & modern tools

Results-Driven Approach

I focus on metrics that matter: engagement, stability, and downloads. My apps consistently achieve 150%+ engagement improvements.

  • 150%+ engagement rate increases
  • Doubled user bases in months
  • Crash-free rate improvements

International Experience

I've worked with global clients from Vietnam, Denmark, USA, and more. I understand diverse markets and user expectations.

  • Worked with Ikame Global (Vietnam)
  • Collaborated with AppVestor (Denmark)
  • Delivered for various US startups

Clear Communication

Transparent updates, regular check-ins, and clear documentation. You'll always know exactly where your project stands.

  • Daily/weekly progress updates
  • Responsive to messages & calls
  • Clear technical documentation

Quality & Reliability

Clean code, comprehensive testing, and maintainable architecture. Your app won't need a rewrite in 6 months.

  • Comprehensive unit & UI testing
  • Code reviews & best practices
  • Long-term maintainability focus

50+

Projects Successfully Delivered

100%

Upwork Job Success Score

10M+

Combined App Downloads

Featured Enterprise Projects

Large-scale applications built for businesses and markets

Enterprise Project

Tudo - C2C Marketplace

Pakistan & Qatar Launch

Comprehensive customer-to-customer platform integrating services marketplace, cab booking, e-commerce shopping, and food delivery. A complete ecosystem for local economies.

4 Services In One Platform
2 Countries Target Markets
E-commerce Multi-vendor Payment Gateway Maps Integration Real-time Tracking
Enterprise Project

Attendance Management System

Corporate Solution

Advanced BSSID-verified and geo-fenced attendance system with web admin panel. Manages Admin, HR, and Employee roles with automated attendance calculation, late arrival tracking, and Excel report generation.

3 Roles User Types
100% Accuracy
Geo-fencing BSSID Verification Admin Panel Excel Export Analytics
Enterprise Project

ProScan - Document Management

Professional Tool

All-in-one file conversion and PDF scanning solution using iText PDF library. Features OCR, ID card scanning, PDF editing with signatures and watermarks, document merging, and comprehensive file management.

10+ File Formats
OCR Powered
OCR iText PDF File Conversion Scanner Document Editor

My Portfolio

Showcasing live apps & freelance projects from 50+ completed works

4K Live Wallpaper

Ikame Global (Vietnam)

Premium wallpaper app with dynamic content delivery, FCM notifications, and remote configuration for seamless updates.

10M+ Downloads
150% Engagement ↑
Kotlin FCM Analytics

OMW - Live Wallpaper 4K HD

AppVestor (Denmark)

Modern wallpaper app built with Jetpack Compose, featuring smooth animations and intuitive UX.

50K+ Downloads
170% Engagement ↑
Compose Firebase MVVM

Mindmate - AI Chatbot

AppVestor (Denmark)

AI-powered mental health companion with natural conversation flow and smart responses.

5Γ— Growth
4.5β˜… Rating
AI/ML Kotlin Compose

Calculator Lock

Freelance Project

Privacy-focused vault app disguised as calculator with advanced security features.

Security Encryption Privacy

Mobile Number Tracker

Freelance Project

Track mobile numbers with live location features and caller ID functionality.

1M+ Downloads
4.2β˜… Rating
Location Maps API Kotlin

My Wallet・Expense Tracker

Freelance Project

Comprehensive expense tracking and budget management app with insights and reports.

Fintech Room DB Charts

CV Maker: Resume Builder – AI

Freelance Project

AI-powered resume builder with professional templates and export options.

AI PDF Gen Templates

Cover Letter Maker for CV

Freelance Project

Professional cover letter generator with customizable templates and AI suggestions.

AI Writing Templates Export

English to Urdu Translation

Freelance Project

Comprehensive translation app with dictionary, voice input, and offline support.

Translation Voice Offline

Edge Lighting: RGB Borderlight

Freelance Project

Customizable edge lighting effects with RGB colors and animation patterns.

UI Effects Animations Custom Views

Number Location Tracker Live

Freelance Project

Advanced number tracking with live location updates and caller information.

Real-time Location Maps

Analog Clock Live Wallpaper

Freelance Project

Elegant analog clock wallpaper with customizable faces and smooth animations.

Live Wallpaper Custom Views Animations

Background Remover

Freelance Project

AI-powered background removal tool with precision edge detection and export options.

697 Installs
AI/ML Image Processing Kotlin

Daily Quotes & Motivational

Freelance Project

Inspirational quotes app with daily notifications and beautiful typography.

Firebase Notifications UI/UX

Eye Protection App

Freelance Project

Blue light filter and screen dimmer with customizable color shades for eye comfort.

Accessibility Overlay Service Health

Doctor Appointment System

Freelance Project

Healthcare booking system with doctor profiles, appointment scheduling, and reminders.

Healthcare Booking System Firebase

Collage Maker

Freelance Project

Photo collage creator with multiple layouts, filters, and export options.

Image Processing Custom Views Editor

Ovulation / Period Tracker

Freelance Project

Women's health tracker with cycle predictions, symptom logging, and insights.

Health & Fitness ML Predictions Calendar

Photo Editor

Freelance Project

Comprehensive photo editing app with filters, adjustments, and creative tools.

Image Processing Filters OpenGL

Auto Reply App

Freelance Project

Automated messaging app with customizable templates and smart scheduling.

Accessibility Service Automation Messaging

Always on Display App

Freelance Project

AOD app with customizable clock styles, notifications, and battery optimization.

Lock Screen Custom Views Power Management

Professional Journey

My path to becoming an Android expert

Freelance Android Developer

Upwork - Remote

Dec 2025 – Present

Achieved 100% Job Success Score by delivering exceptional work and maintaining transparent communication
Working with global clients on diverse Android projects ranging from e-commerce to fintech
Specializing in Kotlin, Jetpack Compose, and Clean Architecture for scalable app development
Built apps with 10M+ combined downloads and 4.5+ average ratings

Android Developer (Contract)

Freelance Client

Oct 2025 – Jan 2026

Developed multiple production apps including expense trackers, CV builders, and utility apps
Implemented AI-powered features in mental health and productivity applications
Successfully delivered 7 apps to Google Play Store within tight deadlines
Maintained high code quality with comprehensive testing and documentation

Android Developer

Islo AI (Gamicans), Islamabad

Sep 2024 – Sep 2025

Worked with international clients: Ikame Global (Vietnam), Apero, and AppVestor (Denmark)

Ikame Global - 4K Live Wallpaper App
Boosted engagement time by 150% (from 2m β†’ 5m) by integrating FCM notifications
Doubled downloads (5M β†’ 10M in 3 months) by fixing recurring crashes and stability issues
Implemented event tracking & analytics to identify high-traffic screens
Enabled remote configurations, giving the client full control over app behavior without code changes
AppVestor - Ohmywall 4K Wallpaper, Chatbot AI
Migrated UI from XML β†’ Jetpack Compose, improving performance and responsiveness
Increased engagement time by 170% (50s β†’ 2m 15s) through bug fixes, FCM, and remote config
Scaled downloads 5Γ— (10K β†’ 50K) in record time

Android Developer

Uprock Tech, Islamabad

Jan 2023 – Sep 2024

Built and maintained multiple Android applications focusing on high performance and clean architecture
Optimized app performance, reducing load times and memory usage while improving UI responsiveness
Developed Geo-Location Country Code Picker integrated with device services & APIs
Collaborated in Agile/Scrum environment with code reviews, sprint planning, and client demos
Mastered Room, Retrofit, Firebase, and MVVM architecture patterns

Android Developer

Technocation Pvt Ltd, Rawalpindi

Jul 2019 – Sep 2019

Started as an intern and quickly promoted to Android Developer role
Assisted in development and debugging of Android applications
Supported senior developers in implementing features and resolving bugs
Learned Android development best practices and professional workflow

Client Testimonials

Real reviews from my Upwork projects

100% Job Success on Upwork
β˜…β˜…β˜…β˜…β˜… 5.0
Android Web Attendance Management System

Oct 4, 2025 - Oct 17, 2025

"Usman did an incredible job building our Attendance Management System from scratch. He implemented Clean Architecture, Jetpack Compose, and integrated everything with our admin dashboard. The app works perfectly for Admin, HR, and Employee roles. He's proactive, communicates clearly, and delivers exactly what's promised. A true professional and a pleasure to work with."

Committed to Quality Solution Oriented Clear Communicator Reliable Accountable Professional
UC
Upwork Client

Geo-Fencing, BSSID, Fingerprint, Reporting

β˜…β˜…β˜…β˜…β˜… 4.7
Kotlin App Development Needed

Aug 31, 2025 - Sep 1, 2025

"Working with Usman was a great experience. He understood my needs perfectly and delivered exactly what I was looking for. Very professional and reliableβ€”I'll be hiring him again for my future projects."

Clear Communicator Committed to Quality Professional Reliable
4k Wallpapers project
UC
Upwork Client

4K Wallpapers Project

View All Reviews on Upwork

Achievements & Education

Milestones in my Android development journey

BCSE in Software Engineering

Foundation University (2018-2022)

Specialized in Software Project Management, AI, OOP, and Software Design Architecture

10M+ Downloads Achievement

Google Play Store

Successfully scaled apps to reach over 10 million downloads with high user ratings

100% Job Success on Upwork

Upwork Platform

Maintained perfect success rate through exceptional work quality and client satisfaction

Android Development Certified

Professional Certification

Certified in modern Android development with Kotlin and Jetpack Compose

Performance Optimization Expert

Multiple Projects

Consistently improved app engagement by 150%+ across different projects

International Client Experience

Global Collaboration

Worked with clients from Vietnam, Denmark, USA, and other countries

Let's Build Something Amazing

Ready to bring your Android app idea to life?

Email usmanrana19720@gmail.com
Phone +92 300 0461379
Location Rawalpindi, Pakistan