I am a Senior Android Developer and Android Platform Engineer with deep expertise in AOSP development, firmware customization, and embedded Android systems—ranging from development boards to commercial smartphones, tablets, kiosks, wearables, Android TV devices, and IoT controllers.
My professional journey includes building and maintaining production-grade Android platforms for global products and startups. I have delivered system-level Android solutions at EvolaLabs, where I worked on firmware customization, platform optimization, OTA infrastructure, and remote device management systems deployed on real-world commercial devices.
With a strong command of the Android source tree, Linux-based systems, and embedded hardware integration, I specialize in building reliable, production-ready Android platforms tailored to specific business requirements. I help OEMs, startups, and product teams transform standard Android into customized solutions—whether it’s a locked-down kiosk device, a white-labeled firmware product, or a custom Android-based IoT system.
Key Competencies:
* Full-Stack AOSP Customisation – Frameworks, HAL layers, SystemUI, native daemons, init configurations, and system properties
* Firmware & System Customisation – Boot animation, shutdown UI, system branding, performance optimization, bloatware removal, and kiosk enforcement
* Android Wearables & TV – Experience in developing Android TV applications and adapting AOSP for wearable and embedded Android devices
* SDK / NDK & JNI Expertise – Bridging native performance with system-level Android APIs and optimizing low-level functionality
* OTA System Implementation – Server and client development for A/B and non-A/B updates, successfully deployed on production devices
* Remote Access Tools – ADB over network, web-based screen viewing, remote debugging, and full device control solutions
* IoT Integration – Deep experience building Android-based controllers using Zigbee, Z-Wave, MQTT, and hardware communication protocols
* Enterprise Android Platform Experience – Delivered system-level Android customization, firmware optimization, and device management solutions at EvolaLabs for commercial deployments
Proven & Ready-to-Deploy Solutions:
* Android Kiosk Systems – Securely lock down Android devices with system-level restrictions, dedicated device modes, and enterprise-grade control without relying on user-granted permissions
* Remote Device Management Stack – Secure monitoring, debugging, and management of Android devices via network-based tools, remote shell access, and centralized control dashboards
* Screen Casting to Browser – Real-time device screen streaming and remote viewing through web browsers, ideal for remote support, diagnostics, and device monitoring
* Automated Device Scheduling – Auto-boot, auto-shutdown, sleep, and reboot scheduling for Android devices used in enterprise, retail, and industrial environments
* Boot Animation & Branding Customisation – System-level branding solutions including boot logos, animations, startup/shutdown screens, and firmware personalization
* OTA Update Server & Client – Complete over-the-air firmware update system with secure rollout, version management, and rollback support for production devices
* Device Provisioning & Enrollment System – Automated device setup, configuration, and policy enforcement during first boot or mass device deployment
* System Performance Optimisation Toolkit – Tools and scripts for memory tuning, startup optimization, battery efficiency, and long-term system stability
Why Clients Hire Me:
* Source-Level Android Expertise – I work directly inside the Android source tree, from frameworks and SystemUI to HAL layers, init scripts, and system services
* Production-Ready Engineering – I design and deliver stable, scalable Android systems built for real-world deployment across commercial and enterprise devices
* End-to-End Platform Delivery – From hardware bring-up and firmware development to OTA rollout and long-term maintenance, I manage the complete Android system lifecycle
* Strong AOSP & Embedded Systems Knowledge – Deep understanding of Android internals, Linux-based systems, and hardware integration for embedded and custom Android devices
* Reliable Communication & Fast Execution – Clear technical communication, structured delivery, and consistent progress updates throughout the project lifecycle
* Scalable Device Solutions – Experience building Android platforms capable of running reliably on large fleets of devices in production environments
* Problem-Solving at System Level – Skilled in diagnosing complex platform issues, optimizing performance, and implementing robust system-level solutions
Looking to build a next-gen Android device or customize AOSP for a vertical solution?
Let’s build something powerful. I'm here to take your embedded Android project to the next level.
Android NDK
Android
AOSP
Java
Kotlin
Android App Development
Android SDK
Android Tablet
Native App Development
Test Automation Framework
Mobile Device Management
Embedded System
Firmware Programming
Driver Development
Raspberry Pi
OS Security
Software Debugging
Performance Optimization
Raspberry Pi Firmware
iPhone UI Design
Cryptography
Blockchain
Mobile App
Adobe Illustrator
UI/UX Prototyping
Web Design
Mobile UI Design
Huzaifa I.
Faisalabad, Pakistan
$15/hr
5.0
2 jobs
Android developer specializing in app development, monetization, and Google Play publishing, with 20+ production apps live on the Google Play Store.
I work across the full app lifecycle, from development and testing to monetization, Google Play Console management, production releases, submissions, and ongoing updates.
I have hands-on experience managing Google Play Console workflows, including app submissions, production releases, store listings, updates, testing tracks, and troubleshooting publishing-related issues.
Ad Monetization & In-App Purchases
Ad monetization is one of my strongest areas, with hands-on experience in:
* Google AdMob banner, interstitial, rewarded, app-open, and native ads
* AppLovin MAX mediation
* Meta Audience Network, Unity Ads, and other mediation networks
* eCPM and ad revenue optimization
* Ad placement and ad flow optimization
* Google Play Billing and in-app purchases
* Policy-conscious monetization implementations aligned with Google Play requirements
AI-Powered Android Apps
* OpenAI API integration
* Google Gemini API integration
* REST APIs and third-party service integration
Android Tech Stack
* Kotlin and Java
* Android SDK
* Jetpack Compose and XML
* MVVM architecture
* Firebase Authentication, Firestore, Analytics, Crashlytics, and Remote Config
* Retrofit
* Room Database
* WorkManager
* REST APIs
* Google Play Console
Why Work With Me
* 20+ production apps live on Google Play
* Real-world experience shipping and maintaining Android applications
* Experience managing Google Play Console releases, submissions, testing, and updates
* Strong expertise in AdMob and mediation
* Experience with app monetization and revenue optimization
* End-to-end experience from development to production
* Experience troubleshooting publishing and production issues
* Focus on clean, reliable, and policy-conscious implementations
Available for Android app development, feature development, AdMob and mediation integration, monetization optimization, Google Play publishing and troubleshooting, Google Play Billing, AI API integration, and bug fixing.
Send me your requirements and I’ll be happy to discuss the best approach for your project.
Android NDK
Android App Development
Kotlin
Android Studio
Mobile App Development
Firebase
XML
Git
GitHub
API
RESTful API
Retrofit
Android SDK
Mobile App
Mobile UI Design
Android Debug Bridge
Anas A.
Faisalabad, Pakistan
$35/hr
4.9
22 jobs
Building a high-performance mobile application requires more than just writing code—it requires a robust architecture that can grow with your business. Whether you are launching a greenfield project or need to refactor a legacy codebase, I specialize in delivering production-ready mobile solutions that are clean, testable, and easy to maintain.
My core expertise lies in Kotlin Multiplatform (KMP). I bridge the gap between Android and iOS, helping teams reduce development overhead and codebase maintenance by sharing logic without sacrificing native performance.
Why work with me?
Architectural Rigor: I don’t just implement features; I build systems. My work is anchored in Clean Architecture, MVI, and MVVM patterns, ensuring your app is built to scale.
Proven Delivery: I have a track record of shipping complex applications—from ride-hailing platforms like Feres to secure, high-traffic messaging apps—handling everything from UI implementation to intricate backend integration.
Modern Workflow: I leverage AI-assisted engineering to accelerate development and debugging, applying rigorous human engineering judgment to ensure your product remains rock-solid and secure.
My Technical Stack:
Frameworks: KMP, Compose Multiplatform, Jetpack Compose.
Architecture: Clean Architecture, MVI, MVVM, Multi-module Gradle.
Backend/Integration: Ktor, Retrofit, REST APIs, DTO mapping, Error Handling.
Database/Storage: Room, DataStore, Firebase, FCM/APNs.
Advanced Features: Maps, Location Tracking, Chat, Media (ExoPlayer/CameraX), QR Scanning.
Recent Success:
I recently led the KMP frontend refresh for the Feres suite (Ride-hailing, Driver, and Delivery apps). This project required complex platform-specific implementations (expect/actual), seamless push notifications, and high-performance UI implementation using Compose.
If you are looking for an engineer who communicates clearly, respects deadlines, and treats your codebase with the care it deserves, let’s discuss how I can help bring your project to the next level.
Android
Kotlin
Coroutine
Koin
Google Maps
Android Room Persistence
Push Notifications
Websockets
iOS Development
OpenAI Codex
Claude
Spring Boot
Clean Architecture
OpenAI API
Swift
Gemini
OpenAI Codex Prompt
Muhammad F.
Faisalabad, Pakistan
$15/hr
5.0
13 jobs
Hi, I’m Senior Android developer with 7 years of experience in the industry, I have a deep understanding of both Android development ecosystems, including the latest technologies and best practices.
Throughout my career, I have worked on numerous projects, ranging from small applications to large-scale enterprise solutions. My strong problem-solving skills and attention to detail have enabled me to identify and resolve complex technical issues, which has helped me to create high-quality applications that meet the needs of my clients.
I am passionate about staying up-to-date with the latest trends and technologies in mobile development. I have strong experience with MVVM, Clean Architecture, and Jetpack Compose.
Please feel free to contact me, and I'll help you at any stage, from an idea or small app to a full-scale solution. I am available for calls, meetings. Feel free to reach out! Thanks!
⦿ Expertise in Technologies:
⦾Internet of Things (IoT)
⦾Bluetooth Low Energy (BLE)
⦾Continuous Glucose Monitoring (CGM) sensors
⦾Socket.IO
⦾WebRTC
⦾VOIP Calling
⦾RTMP (Streaming)
⦾Google Maps API, Google Calendar Syncing
⦾Payment Gateways
⦾Firebase Push Notifications
⦾Mobile Device Management (MDM)
⦾Kiosk and Launcher Applications
⦾Encryption (HMAC)
⦾Dagger 2
⦾Hilt
⦾RxJava
⦿Expertise in Databases:
⦾Room Database
⦾SQLite (Encrypted)
⦾Realm
⦾Firebase
⦾Oracle/SQL Server (OJDBC)
Android NDK
Android
Android App
Firebase
Mobile Device Management
Kotlin
Java
Java GUI
Android Debug Bridge
Retrofit
Android Studio
Android SDK
Android App Development
JSON
Web Development
Muhammad I.
Faisalabad, Pakistan
$15/hr
5.0
8 jobs
🎁 𝗜 𝗿𝗲𝘃𝗶𝗲𝘄 𝘆𝗼𝘂𝗿 𝗮𝗽𝗽 𝗶𝗱𝗲𝗮 𝗼𝗿 𝗲𝘅𝗶𝘀𝘁𝗶𝗻𝗴 𝗔𝗻𝗱𝗿𝗼𝗶𝗱 𝗰𝗼𝗱𝗲 𝗮𝗻𝗱 𝘀𝘂𝗴𝗴𝗲𝘀𝘁 𝗽𝗿𝗮𝗰𝘁𝗶𝗰𝗮𝗹 𝗶𝗺𝗽𝗿𝗼𝘃𝗲𝗺𝗲𝗻𝘁𝘀 𝗯𝗲𝗳𝗼𝗿𝗲 𝘆𝗼𝘂 𝗵𝗶𝗿𝗲 𝗺𝗲.
Many clients come to me after dealing with:
→ 𝗔𝗽𝗽𝘀 𝘁𝗵𝗮𝘁 𝗰𝗿𝗮𝘀𝗵 𝗼𝗿 𝘀𝗹𝗼𝘄 𝗱𝗼𝘄𝗻 𝘂𝗻𝗱𝗲𝗿 𝗿𝗲𝗮𝗹 𝘂𝘀𝗲𝗿𝘀
→ 𝗣𝗼𝗼𝗿 𝗚𝗣𝗦 𝗮𝗰𝗰𝘂𝗿𝗮𝗰𝘆, 𝗯𝗮𝗰𝗸𝗴𝗿𝗼𝘂𝗻𝗱 𝘁𝗿𝗮𝗰𝗸𝗶𝗻𝗴 𝗶𝘀𝘀𝘂𝗲𝘀, 𝗼𝗿 𝘂𝗻𝗿𝗲𝗹𝗶𝗮𝗯𝗹𝗲 𝗻𝗮𝘃𝗶𝗴𝗮𝘁𝗶𝗼𝗻
→ 𝗠𝗲𝘀𝘀𝘆 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 𝘁𝗵𝗮𝘁’𝘀 𝗵𝗮𝗿𝗱 𝘁𝗼 𝘀𝗰𝗮𝗹𝗲
→ 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿𝘀 𝘄𝗵𝗼 𝘀𝗵𝗶𝗽 𝗳𝗲𝗮𝘁𝘂𝗿𝗲𝘀 𝗯𝘂𝘁 𝗱𝗶𝘀𝗮𝗽𝗽𝗲𝗮𝗿 𝗮𝗳𝘁𝗲𝗿 𝗹𝗮𝘂𝗻𝗰𝗵
I build stable, scalable, and real-world Android applications that perform reliably in production. With 9+ years of hands-on Android experience, I code myself, focus on clean architecture, and deliver apps businesses can confidently scale.
From MVP to Play Store — I make sure your app is fast, accurate, battery-efficient, and crash-free.
➤ 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲
→ Native Android App Development
→ Kotlin & Java
→ Jetpack Compose UI
→ Clean Architecture (MVVM, MVI)
→ Performance, stability & memory optimization
→ GPS, Maps & real-time tracking systems
➤ 𝗦𝗸𝗶𝗹𝗹𝘀
→ Android SDK
→ Kotlin, Java
→ Jetpack Compose
→ Firebase (Auth, Firestore, FCM)
→ REST API integration
→ Room & SQLite
→ Google Maps, location services & background tracking
➤ 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀
→ Android app development (MVP → Production)
→ New app builds & existing app improvements
→ App performance optimization & crash fixing
→ Firebase & real-time features
→ GPS navigation, tracking & location-based features
→ Play Store release & long-term maintenance
➤ 𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲
→ 9+ years Android development
→ 20+ commercial Android apps delivered
→ Apps with 1M+ active users
→ Startup & enterprise-level products
→ Long-term product ownership mindset
➤ 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲
→ eCommerce & grocery delivery apps
→ FinTech & payment systems
→ Delivery & on-demand platforms
→ Streaming & media apps
→ Enterprise mobile solutions
→ GPS navigation, speed alerts & road-hazard systems
→ Maps-based apps, real-time tracking & driver utilities
➤ 𝗗𝗼𝗺𝗮𝗶𝗻 𝗞𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲
→ Scalable mobile architectures
→ High-traffic handling
→ Secure transactions & payment flows
→ Offline-first mobile apps
→ Battery-optimized background services
→ Navigation accuracy, GPS performance & map reliability
➤ 𝗧𝗼𝗼𝗹𝘀
→ Android Studio
→ Git, GitHub, Bitbucket
→ Firebase Console
→ Jira, Trello
→ Jenkins, Fastlane
→ Google Maps API, Location Services
→ Figma (design implementation support)
👉 Need an Android app that works reliably in real-world conditions?
👉 Building a GPS, maps, tracking, or delivery app?
👉 Click Invite to Job and get a free app review.
𝗖𝗹𝗲𝗮𝗿 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻. 𝗖𝗹𝗲𝗮𝗻 𝗰𝗼𝗱𝗲. 𝗥𝗲𝗹𝗶𝗮𝗯𝗹𝗲 𝗱𝗲𝗹𝗶𝘃𝗲𝗿𝘆.
𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀
Android Developer, Senior Android Developer, Kotlin Developer, Jetpack Compose, Android App Development, Native Android, Clean Architecture, MVVM, Firebase Android, GPS Tracking App, Navigation App, Google Maps Android, Location Based Apps, Background Tracking, Delivery Apps, Traffic Alert App, Performance Optimization, Crash Fixing, Play Store Deployment
Kotlin
Java
Android App Development
AI Mobile App Development
Amazon S3
XML Web Services
JetPack
Firebase
Mobile App
Mobile App Development
Mobile App Design
GPS
Android SDK
Mobile App Development Consultation
AI App Development
Muhammad Safi U.
Faisalabad, Pakistan
$45/hr
5.0
3 jobs
I build Android apps that handle real money and real scale not tutorials, production.
Over the last 7+ years I've shipped native Android apps (Kotlin + Java) for
Visa, PepsiCo, Adobe, HP, Pinterest, Cloudflare, and Warner Bros, plus led
architecture on a 100+ module enterprise codebase and a UK fintech app
(HyperJar) with 100,000+ real users moving real money.
WHAT I DO BEST
→ Clean Architecture / MVVM / MVI on large, multi-module codebases
→ Jetpack Compose - both greenfield builds and XML-to-Compose migrations
→ Enterprise SSO & security: MSAL, OKTA, SAML, Intune, AWS Cognito, Play Integrity
→ Offline-first apps with Room, WebSockets for real-time features, Maps SDK
→ Kotlin Coroutines, Flows, and GraphQL in production not just on paper
RECENT WORK
→ HyperJar (Fintech, UK) - 100K+ users, payment integrations, Compose migration
→ Bodybuilder AI - built and shipped solo, 100K+ organic downloads
→ CXApp (Indoor Navigation / Workplace Management) - SSO, MDM/MAM, 100+ module architecture
→ Employee GPS Tracking App - real-time location tracking, Firebase auth (5.0★ on Upwork)
HOW I WORK
I write unit, UI, and integration tests as a default, not an afterthought. I flag
architecture risks before they become production incidents, not after. I'm
comfortable owning a feature end-to-end - from a Figma file to a Play Store
release or slotting into an existing team and codebase.
If your app touches money, sensitive data, or needs to scale past a single
module, that's exactly the kind of problem I like solving.
Message me with what you're building, I usually reply within a few hours.
Cheers,
Safi
Android NDK
Android
Kotlin
Android Room Persistence
Android App Development
Android SDK
Mobile App Development
Android Studio
SQL
JetPack
SQLite
Git
Mobile App Development Consultation
SQLite Programming
Firebase
GraphQL
RESTful API
Clean Architecture
Android App
AI App Development
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