Hello,
Umar Habib Rana
Senior Mobile Application Developer building high-performance mobile applications in Android/Kotlin, Jetpack Compose, and CMP/KMP.
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Happy Clients
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Years of Experience
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Completed Projects
My experience
Navigating diverse environments with adaptability and expertise for holistic solutions.
Appworks Ltd
Jan 2025 - Present
Islamabad, PK
Mobile Applications Developer
Developing and maintaining Android and cross-platform applications using Kotlin, Jetpack Compose, KMP, and CMP. Building shared business logic and UI targeting Android and iOS. Integrating Maps SDKs, VPN SDKs, REST APIs, and Firebase. Developed and published proprietary Maps and VPN SDKs to Maven Central.
Smile Mobile Games (PVT) Ltd
Feb 2024 - Dec 2024
Islamabad, PK
Senior Android Developer – Team Lead
Led design and implementation of multiple Android applications across the full development lifecycle. Managed and mentored a team of developers, conducting code reviews and enforcing coding best practices. Delivered apps including Holy Quran MP3, GPS Navigation, and CallerID.
FHA Technology
Jan 2022 - Jan 2024
Lahore, PK
Senior Android Developer
Led end-to-end development of multiple Android apps including Smart Mobile Data Transfer, GPS Navigation, CallerID, and Mobile Data Transfer. Integrated RESTful APIs, Firebase, and AWS services. Mentored junior developers and improved app stability to 99%+ crash-free sessions.
The EyeCare Company (TECC)
Jul 2019 - Nov 2020
Islamabad, PK
Android Developer
Developed and maintained the company's Android application, owning features from requirements through deployment. Integrated RESTful APIs, managed data with Room and SQLite, carried out unit tests, and provided technical support during app update rollouts.
Rawal Industrial Equipment (PVT) Ltd
Feb 2017 - Apr 2019
Rawalpindi, PK
Software Developer (Android & Web)
Developed the Toyota Rawal Motors Android application covering appointment booking and car care management. Designed, implemented, and maintained the company website and sister company websites. Collaborated with senior managers for requirement gathering.
Markhor Technologies
Oct 2016 - Feb 2017
Islamabad, PK
Junior Android Developer
Learned and applied native Android development practices while working closely with the development and testing team. Assisted in building and maintaining custom mobile applications. Supported senior developers in debugging sessions and quality assurance activities.
My Stacks
Commitment to staying updated with the latest design trends and techniques.
Kotlin
Primary Android Language
Java
Android Development
Android SDK
Core Android Framework
Jetpack Compose
Declarative UI Toolkit
Kotlin Multiplatform
Cross-Platform Shared Logic
Firebase
Analytics, Auth & Crashlytics
Room Database
Local Persistence Layer
Google Maps SDK
Maps & Location
Git
Version Control
Android Studio
Primary IDE
GitHub
Code Collaboration
Gradle
Build Automation
My Services
Formulating comprehensive strategies to meet your design goals and exceed expectations.
Android App Development
Building high-performance native Android applications using Kotlin, Jetpack Compose, and modern architecture standards with 8+ years of experience.
Multiplatform Mobile Development
Developing cross-platform mobile apps with shared business logic and Compose Multiplatform UI targeting both Android and iOS from a single codebase.
App Performance Optimization
Deep analysis and refactoring of Android apps to improve crash rate, reduce ANRs, optimize startup time, and achieve 99%+ crash-free sessions.
SDKs Development & Integration
Developing and integrating third-party SDKs to enhance app functionality and user experience, including Maps SDKs, VPN SDKs, and REST API integrations.
Mobile Applications Portfolio
A selection of production Android and cross-platform apps I've built and shipped.
eEagle VPN
High-scale VPN Android application with 1.4M+ downloads. Implemented VPN SDK integration, subscription flows, crash optimization, and Jetpack Compose UI improvements.
Family Tracker & OrbitLink
Family location-sharing app and companion app OrbitLink, both built with Compose Multiplatform. Shared business logic and UI across Android and iOS targets via KMP/CMP.
Words From Happy Clients
Discover what satisfied clients have to say about their experiences working with me.
Michael Carter
New York, USA.
The Android app delivered exceeded our expectations. Performance is smooth, crash-free stability improved significantly, and the monetization flow was implemented perfectly.
Daniel Roberts
London, UK.
Exceptional Android development skills. The app was refactored into Clean Architecture with Jetpack Compose, and the overall performance optimization made a noticeable difference.
Emma Williams
Sydney, Australia.
Our VPN application stability improved to over 99% crash-free sessions after the optimization work. Subscription handling and Play Store compliance were handled professionally.
Carlos Martinez
Madrid, Spain.
From Google Play Billing integration to UI redesign with Compose, the mobile application development was handled with precision and strong technical expertise.
Sophie Müller
Berlin, Germany.
The performance tuning and ANR reduction work transformed our Android app. Startup time improved, crashes decreased, and user retention increased significantly.