Hire the Best Android Developers

Need an Android app that is fast, scalable, and production-ready? You're in the right place. I'm Inam Ullah Khan, a Native Android Developer with 3+ years of experience building modern Android applications using Kotlin, Jetpack Compose, MVVM, Firebase, and REST APIs. I help startups, SaaS companies, and growing businesses build Android apps that are reliable, maintainable, and ready for real users. What I can help you with: • Build Android apps from scratch • Jetpack Compose UI Development • Kotlin & Java Development • Firebase Authentication, Firestore & FCM • REST API Integration • Room Database & Offline Support • Google Maps & Location Features • Payment Gateway Integration • AI Features using OpenAI APIs • Bug Fixing & Performance Optimization • Google Play Store Publishing Why clients hire me: ✓ Clean, maintainable architecture (MVVM + SOLID) ✓ Fast communication ✓ Daily progress updates ✓ Production-quality code ✓ Long-term support I focus on building Android applications that are easy to scale, easy to maintain, and enjoyable for users. If you're looking for a reliable Android developer who can turn your idea into a polished product, I'd be happy to discuss your project.

As an experienced Android Developer & Mobile Developer with 10 years in the trenches, I help startups, SMBs, and founders fix "vibe-coded" apps performance, ship MVPs in weeks, integrate on-device AI / LLMs to save cloud costs, and build scalable apps from 0 to launch. ✅ 10 years of native Android & Kotlin experience (4y Java + 6y Kotlin) ✅️ 30+ projects successfully delivered ✅️ 100k+ MAU app development experience ✅️ 4.5+ average rating across launched Google Play apps ✅ Under 0.1% crash & ANR rate across all launched apps ✅️ 5-star feedback from past clients ✅️ $100k+ earned on Upwork with Top-Rated status ✅️ 100% JSS ✅️ Hands-on experience with Kotlin Multiplatform ( KMP , CMP ) In 2026 I specialize in: - on-device AI integration using MediaPipe / LiteRT / Google ML Kit / TensorFlow ( Object detection , Face detection , Pose detection , Text summarizing, OCR , TTS, STT ); - video / media editing apps ( FFMpeg , AndroidX Media3 , MediaCodec ); - build, improve and maintain media , social , edtech, utility, productivity tools); - performance optimization , bug fixing , firebase crash resolution and ANRs 🌟🌟🌟🌟🌟 Recent feedback : "I was particularly impressed by his strong attention to detail - nothing was overlooked, and the quality of the work consistently met high standards. He showed real commitment to the project, staying engaged and proactive throughout the development process. His regularity and consistency in delivering work made collaboration smooth and reliable." - Neil 🚀 Also I've been building my own Android apps so that gives me a deep understanding of not only a technical part but also ASO and monetization strategy. ✅️ Recent large-scale projects: --- PDF Maker & Reader (130k+ installs , 🌟4.6 on Google Play) Role: Android Developer / Android App Developer / Kotlin Developer I recently built this high-performance Android app from scratch based on Figma mockup using Kotlin. It allows users to quickly convert images to PDF and edit existing PDFs using a fast, local-first architecture. The app has achieved 130k+ downloads and 8k monthly active users on Google Play, with the crash rate lower than 0.1%. --- --- US Medical Education App (COMQUEST for COMLEX & COMAT Prep) Role: Android Developer / Android App Developer / Mobile Developer As part of an international team alongside iOS Developer and Web Developer, I built this Android app from scratch based on Figma designs for US medical students. Continue providing ongoing support for this project, ensuring the mobile app remains a stable and reliable tool for users. --- --- US Automotive Video Suite app Role: Android Developer / Android App Developer / Mobile Developer In collaborating with an iOS Developer and a Full Stack Developer, I built two native Android apps from scratch as a clone of iOS apps (Dealer Video Inventory and Dealer Video Suite) that allows dealers to capture high-quality vehicle inventory videos and photos. These projects helps dealers increase sales through personalized video. --- 🌟 🌟🌟🌟🌟 "Dmitri is a pleasure to work with. He's Android programming skills are exceptional. He's always professional and easy to work with. He is very methodical in his approach. Which at times has resulted in delivery scheduling slipping a little but I rather have a good product than a hastily put together product. We're continuing to work with Dima for other projects." - Philip Whether you are looking for a Mobile Developer to lead a new project or an Android Developer to optimize an existing Java / Kotlin codebase or optimize performance, my goal is to provide technical clarity and long-term stability. As a team player for cross-platform projects I have a proven track record of working alongside iOS developers to ensure smooth releases. I also have specific experience collaborating with Flutter Developers and Full Stack Developers to bridge the gap between cross-platform Flutter / React Native code and the system features specifically by developing custom Java / Kotlin modules to handle native Android OS functionality that standard Flutter plugins can't reach. --- 🚀 My core stack: 🔸️Languages: Java , Kotlin 🔸️UI: XML , Jetpack Compose 🔸️Architecture: MVVM , MVI , Clean Architecture 🔸️Native: Android SDK , Android Studio 🔸️Multiplatform: Kotlin Multiplatform ( KMM / KMP ) / Compose Multiplatform ( CMP ) 🔸️Key features: Camera , Photo & Video capture and edit using FFMpeg , OpenGL , OpenCV ; GPS , Location , Chat , Background syncronization , WorkManager and foreground services, ofline-first approach, on-device AI / LLM , VPN / WireGuard , ExoPlayer / Media3 🔸️On-device AI integration : Video analysis , Image recognition , Object detection , Face detection , Pose Detection , Camera stream analysis , Text-to-Speech , Speech-to-Text ( MediaPipe / Google AI Edge , TensorFlow / TFLite , Google ML kit ). 🔸️Cloud AI integration : OpenAI , Gemini API

10+ years in mobile development. Flutter, Swift, Objective-C, Kotlin, Java. ✅ OOP, FRP, Protocol Oriented Programming, Reactive Programming ✅ Architecture Patterns: MVC, MVP, MVVM, Viper, Clean Swift, RxSwift, RxJava, GAA ✅ Understanding & ability to leverage iOS and Android features ✅ JSON, REST API ✅ Custom transition and animation ✅ Build chat applications ✅ Git; ✅ Agile Methodology ✅ Friendly, Flexible, Punctual, and Professional ✅ Working on iOS and Android apps since 2011 ✅ Fluent English ✅ 9000+ hours billed on Upwork ✅ Worked with successful startup companies ✅ 100% Job Success ✅ Agile Methodology ✅ $300,000+ billed

Trusted App Testing Partner | 12 Testers for 14 Days | 4,000+ Apps Successfully Published Hi, I am Karthik. I run Testers Community, a dedicated service focused on helping Android developers complete the 12 testers for 14 days requirement needed for Google Play production access. Over the 2 years, I have supported more than 4,000+ apps in completing their testing period successfully. My team provides real users who test your app every day and follow the exact Play Store guidelines, ensuring your app becomes eligible for production access without any issues. I help developers in completing the 12 testers for 14 days requirement on Google Play Store. What I Offer: 1) 25 testers who will test your app for the next 16 days. 2) 100% Production access guarantee else we will cancel the order, so you'll be getting a full refund. 3) Detailed Feedback Reports and also Production Access Form answers that you can use while filling the form after 14 days. 4) testers will be assigned within just 6 hours. 5) 24/7 support Why Clients Work With Me: I have long experience working with apps across all categories and a deep understanding of Play Store policies. My process is simple, transparent and focused entirely on helping your app reach production access smoothly. If You Have Any Doubts: If you are unsure about the process or have specific questions about your app, feel free to contact me. I will help you understand everything clearly and make sure every issue gets resolved before we begin. Below is the exact requirement that we help developers in overcoming: - Have at least 12 testers opted-in to your closed test - Run your closed test with at least 12 testers, for at least 14 days

𝗪𝗵𝗼 𝗜 𝗮𝗺 I'm Muhammad Ahsan, a Top Rated Senior Android Developer with 8+ years of experience building mobile applications for startups and businesses worldwide. I specialize in Native Android development with Kotlin and Jetpack Compose, Cross Platform development with React Native, and AI powered mobile applications. ✅ Build production ready Native Android apps using Kotlin and Jetpack Compose ✅ Develop cross platform iOS and Android apps using React Native with a shared codebase ✅ Modernize legacy Android applications from Java and XML to Kotlin and Jetpack Compose ✅ Integrate AI features including chatbots, LLM assistants, image generation, text processing, voice features, and intelligent automation ✅ Improve existing Android and React Native apps with clean, maintainable, and scalable code 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 • 𝟱.𝟬★ (𝟰𝟲 𝗿𝗲𝘃𝗶𝗲𝘄𝘀) • 𝟵𝟬+ 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 • 𝟭,𝟭𝟱𝟬+ 𝗵𝗼𝘂𝗿𝘀 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 Over the years, I've developed a wide range of applications including AI powered chat apps, education platforms, fintech products, sports apps, productivity tools, utilities, and e-commerce applications. Every project is built with clean architecture, maintainable code, and a strong focus on user experience. 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝘄𝗶𝘁𝗵 ✅ Mobile App Development - Native Android using Kotlin, Java, and Jetpack Compose - Cross Platform development using React Native and Expo - Pixel-perfect UI implementation with smooth performance - Custom animations, transitions, and polished user experience - Code refactoring and architecture improvements ✅ Backend & Infrastructure - Firebase, Supabase, PostgreSQL, MySQL - AWS & Google Cloud (GCP) - Scalable backend architecture and API design ✅ Monetization & Payments - Monetization with ad networks like AdMob, Unity, FAN, AppLovin - In-App Purchases & Subscription Systems - Integration with RevenueCat, Superwall, Adapty - Stripe payment integrations (one-time & recurring) - Paywall optimization, pricing strategy & lifecycle handling ✅ Analytics & Growth - Mixpanel, Firebase Analytics, AppsFlyer, Branch - Funnel tracking, conversion optimization & retention strategy - A/B testing and data-driven product decisions ✅ AI & Advanced Features - AI integrations, chatbots & LLM-powered experiences - Voice-based features & real-time interactions - Integration with Gemini APIs & OpenAI APIs - ML-based personalization & automation ✅ Deployment & Scaling - App Store & Play Store publishing (compliance-ready) - CI/CD pipelines and automated deployments - Performance optimization & scalability planning - Long-term maintenance, updates & feature scaling 𝗧𝘆𝗽𝗲𝘀 𝗼𝗳 𝗮𝗽𝗽𝘀 𝗜 𝗯𝘂𝗶𝗹𝗱 • AI Applications • Fintech • E-Commerce • Education • Healthcare • Sports • Chat and Messaging • Productivity • Business Applications • Utility Apps 𝗪𝗵𝗮𝘁 𝘆𝗼𝘂 𝗴𝗲𝘁 𝘄𝗼𝗿𝗸𝗶𝗻𝗴 𝘄𝗶𝘁𝗵 𝗺𝗲 ✔ Clean, modular, testable code that stays easy to expand ✔ Clear communication with regular progress updates ✔ Reliable delivery with realistic timelines ✔ A focus on quality, performance, and user experience My expertise includes Kotlin, Java, React Native, Swift, SwiftUI, and MVP Development, building secure, scalable, and high-performance mobile applications with clean UI/UX and robust architecture. I provide end-to-end Mobile App Development services, including Firebase Integration, REST API Integration, User Authentication, Push Notifications, In-App Purchases, Payment Gateway Integration, Stripe Integration, Google Maps API Integration, Real-Time Chat, App Deployment, Mobile App Performance Optimization, and long-term maintenance to deliver production-ready Android, iPhone, and iPad applications. If you're looking for a reliable Mobile App Developer who can take your idea from concept to a polished product, I'd be happy to discuss your project. I look forward to working with you. Warm regards, Muhammad Ahsan

Building an Android، iOS app, or stuck with one that's broken? Before I give you a number, I want to look at what you already have. The code, the designs, the crash reports, a screen recording of the bug, whatever exists. Half the time the problem isn't what someone was told it was. I'd rather find that out in the first two days than in week three. So send me the app, the Figma file, or just a description of what's going wrong. You'll get an answer within a day: what I think is actually happening, roughly how long it takes, and whether it's worth doing at all. If it's not something I should be the one building, I'll tell you that. I'm a senior Android developer. Four years of it, across telecom, fintech, e-commerce, streaming and TV. Most recently at Vodafone Egypt, before that e-finance and Mtor. Some of what that looked like: A payment module at Vodafone that was quietly failing about a fifth of its transactions. Found it, fixed it, transaction success went up 20% on an app serving 50M+ users. Crash rate came down 15% and load time 10% over the same period. An app at e-finance that was 80MB. Got it to 38MB. Downloads went up 25%, mostly from people on slower connections who'd been giving up on the install. Two e-commerce apps built from scratch at Mtor with Jetpack Compose, plus courier and supplier apps on a reactive MVVM architecture, with Firebase and Bitrise CI/CD behind them. A live streaming app I built on my own, with real-time video, in-app games, digital gifts and in-app purchases. A Flappy Bird-style game running on Android, iOS, desktop and web from a single Kotlin codebase using Compose Multiplatform. On Upwork specifically: an Android TV app in Kotlin, a Jetpack Compose performance bug nobody had been able to pin down, a web scraping Android app, and an Android payment terminal build. I work in Kotlin and Java, Jetpack Compose, Android SDK and Android Studio, Flutter for hybrid and cross-platform builds, and Kotlin Multiplatform when a project needs Android and iOS from one shared codebase. Clean Architecture, MVVM, Coroutines and Flow, Retrofit and Ktor, Firebase, Room, Hilt, REST APIs, unit testing with MockK. I've mentored seven Android interns; two of them got hired full-time. The thing most clients are actually worried about isn't whether the developer can code. It's whether he'll go quiet, or hand back something the next person can't maintain. I write code the next person can read, and I tell you early when something's going to take longer than I said. Top Rated on Upwork with 100% Job Success. Tell me what you're building, or what's broken.