Hire the Best Android Developers

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

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.

Need someone who can build, stabilize and scale your Android product? You just found him 🤝 📊 12+ years in mobile delivery 📊 20+ Android-focused projects 📊 10+ years supporting regulated and business-critical products 📊 Experience with compliance-ready apps, secure payments, backend-heavy systems and Software Development I help companies create secure, maintainable, high-performance apps for Healthcare, FinTech and consumer products. Core Expertise 🔹 Native Android engineering with modern architecture and Software Design 🔹 Kotlin-first development with maintainability in mind 🔹 Legacy modernization from Java to Kotlin 🔹 Secure integrations, performance tuning, release stability 🔹 Product delivery for Healthcare, FinTech, consumer platforms and Mobile App Development I’m an android developer focused on products where reliability and clean architecture matter. As a kotlin developer, I build scalable solutions with android kotlin best practices, Jetpack tooling and AOSP awareness. Clients come to me for android developer kotlin expertise when they need stability, lower technical debt and growth. I work as an android app developer on products that need more than interface implementation. I support teams with android app development for secure solutions where every android app stays maintainable after launch. My background: improving an android application used by thousands of users, integrating backend systems, payment flows, and healthcare-grade data handling. That is why companies hire me as an android mobile developer ( android mobile app developer ) when they need delivery. What I Do Best ✅ Android development using Kotlin and Java ✅ Architecture design with MVVM, Clean Architecture, modularization ✅ Backend communication, authentication and payment integrations ✅ Performance optimization, debugging, maintenance and release support ✅ Application Improvement for live mobile products ✅ Solo delivery or collaboration inside a larger team My strongest specialization is android developer kotlin work. I often join teams that need android developer kotlin java skills to modernize legacy code, migrate modules, and improve release quality without a full rewrite. That work benefits from practical experience as a java developer and from thinking like an android kotlin developer who can handle new features and stabilization. Relevant Experience Highlights 🔸 Healthcare mobile applications with compliance-aware architecture 🔸 Performance optimization and crash-rate reduction 🔸 Secure data handling and app stability improvements 🔸 Secure apps with payment integration and transaction-safe flows 🔸 Backend integrations with PHP, Python, JavaScript, and REST APIs 🔸 Collaboration with iOS, backend, QA, and web teams 🔸 Ability to scale from one engineer to a delivery team I also have experience with android ble and android bluetooth features for pairing flows and reliable data exchange. Whether I contribute to an android mobile app or support an existing codebase as a mobile developer, I focus on release readiness. Tech Stack 🔸 Android kotlin with Jetpack, Compose, Android SDK, AOSP 🔸 Java, Firebase, secure cloud services, CI/CD 🔸 REST APIs, secure auth, payment gateways 🔸 Node.js, JavaScript, C#, SQL for backend alignment 🔸 Git, Android Studio, release workflows, crash analysis 🔸 MVVM, Clean Architecture, modular apps, scalability-first mindset My work is rooted in native Android, but I also understand broader product ecosystems. I collaborate effectively as an ios developer ( ios app developer ) when cross-platform alignment matters, including iOS Development discussions with teams using Swift. I have worked alongside teams using react native and reviewed delivery implications where flutter developer was involved, though I do not present those as my core specialization. That exposure helps me operate as an android developer and product-minded mobile app developer within cross-functional teams. Team & Product Collaboration 🔹 Coordination with a rest api developer 🔹 Alignment with web application development 🔹 Communication with a web developer or front end developer 🔹 Familiarity with database builder, django, and python automation Support I Can Provide ✔️ Build a mobile app from scratch ✔️ Join an existing product as an app developer android ✔️ Refactor legacy code and modernize architecture ✔️ fix android application bugs and improve release readiness I do not position myself as a wordpress, magento, game developer or unreal engine specialist and I do not use unrelated positioning such as android developer india. Even when someone types android develoer, they usually need a senior specialist who can take ownership. I built mobile applications for autism-related projects with intuitive user experience. 📬 If you need an android developer who can improve an existing product, build a reliable solution from scratch or support growth with kotlin developer depth, send me a message.

As an experienced native Android App Developer / Kotlin Developer with 10 years in the trenches, I help SMBs and startups fix "vibe-coded" apps, integrate on-device AI / LLMs, translate their vision into high-performance apps from 0 to launch, ship MVPs in weeks, and upgrade existing apps to comply with the latest Google Play requirements. ✅ 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 In 2026 I specialize in: - on-device AI integration using MediaPipe / LiteRT / Google ML Kit ( Object detection , Face detection , Pose detection , Text summarizing / OCR , text-to-speech , speech-to-text ); - video / media editing apps ( FFMpeg , AndroidX Media3 , MediaCodec ); - building media , social , and productivity tools (not games); - fixing app performance , memory leaks , crashes and ANRs , especially in complex or “vibe-coded” apps. 🌟🌟🌟🌟🌟 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

🌟 About Me Hi there! I’m Bilal Nasir, a dedicated Android Developer (Kotlin + Java) with 5 years of hands-on experience in crafting high-quality mobile apps that are fast, stable, and built with care. I’m passionate about turning ideas into apps that users genuinely enjoy apps that look great, run smoothly, and perform flawlessly. Whether it’s building something from scratch or enhancing an existing project, I bring a mix of creativity and strong technical expertise to the table. I focus on writing clean, modular, and scalable code following modern Android standards like MVVM, Hilt, and Jetpack Compose to ensure your app is future-proof. 💡 What I Can Deliver ✅ Full Android App Development in Kotlin & Java ✅ Modern UI using Jetpack Compose and Material Design 3 ✅ Architecture patterns – MVVM, Clean Architecture, Repository Pattern ✅ API integration using Retrofit + Coroutines ✅ Offline storage with Room Database and DataStore ✅ Firebase services – Authentication, Push Notifications, Analytics, Firestore, etc. ✅ In-app billing and AdMob monetization setup ✅ AI and server integrations (RunPod, Flask, etc.) ✅ Play Store deployment, version control (Git), and long-term maintenance I make sure every project I take on is not just functional but polished, reliable, and optimized for performance and scalability. 📱 Apps I’ve Built & Published Here are some of my published apps that have earned thousands of downloads and positive user feedback on the Play Store: 🌟 Photo Editor / Filter (1M+ Downloads) A powerful photo editing app with real-time filters, effects, and beautification tools designed for fast, offline image processing and a clean user experience. 🌟 Camera Scan - Languages Translator (1M+ Downloads) An all-in-one OCR and translation app that lets users scan text from images and instantly translate it into multiple languages with voice and speech support. 🌟 Flight Tracker - Flight Radar (500K+ Downloads) Live flight tracking app providing real-time flight status, route maps, and airport information using advance API integrations. 🌟 Maps & GPS App (1M+ Downloads) A navigation and location-tracking app that helps users find routes, track movement, and explore nearby places. 🌟 PDF Reader - All PDF Viewer (100K+ Downloads) Lightweight, fast, and elegant PDF viewer that allows users to open, browse, and manage documents with smooth performance. 🌟 AI Haircut (500+ Downloads) An AI-powered hairstyle transformation app that generates realistic haircut previews using user-uploaded photos. 🌟 Speed Cameras Detector (500K+ Downloads) A smart speed detection app that alerts drivers to nearby speed cameras and speed limits using GPS tracking and background services. 🌟 Qibla Compass - Muslim Prayers Alert (100K+ Downloads) An accurate Qibla direction and prayer time app with compass functionality, daily prayer notifications, and clean UI for Muslim users. Each app reflects my passion for delivering clean, functional, and user-centered mobile experiences. 🚀 Why Clients Choose Me ✅ 5 years of proven Android development experience ✅ Strong understanding of app performance and clean architecture ✅ Smooth and open communication throughout every project ✅ Focused on delivering on time, every time ✅ Real-world results, published, monetized, and scalable apps Whether you need a complete Android app from scratch, backend integration, or app optimization, I’m here to build something powerful together.

✅ 12+ Years in Mobile App Development ✅ 100% Job Success | Top Rated | $80K+ Earned ✅ Android, iOS, Kotlin, Java, BLE, VoIP, WebRTC, Firebase I help startups, agencies, and businesses build reliable Android and iOS mobile apps, BLE integrations, VoIP calling apps, SDK-based products, location tracking apps, and long-term production app improvements. Over the last 12+ years, I have worked on mobile apps ranging from consumer products to enterprise systems, including Android SDKs, Bluetooth Low Energy apps, Location Tracking App solutions, Android TV apps, Wear OS apps, VoIP platforms, accessibility tools, NFC/OCR features, and Mobile App Maintenance. What I can help you with: ✅ Native Android App Development using Kotlin and Java ✅ Kotlin Developer support for new and existing Android apps ✅ Java Android Developer work for legacy and production apps ✅ iOS App Development and Mobile App Maintenance ✅ Android SDK Development and Custom Frameworks ✅ BLE App Development / Bluetooth Low Energy integration ✅ VoIP App Development, SIP, Linphone SDK, and WebRTC Calling Apps ✅ Firebase, Push Notifications, Analytics, Crashlytics ✅ API Integration, Payment Integration, and Backend Connectivity ✅ Android TV, Wear OS, NFC, OCR, and Accessibility Features ✅ Location Tracking App development and background location features ✅ Target SDK / API Level Upgrades and Play Store Compliance ✅ Bug Fixing, Performance Optimization, and Legacy App Modernization ✅ AI Mobile App Development and AI Feature Integration Clients usually hire me when they need someone who can understand an existing codebase, fix complex technical issues, improve app stability, and deliver production-ready mobile app development without unnecessary complexity. My core strengths include Android App Development, Mobile App Development, Kotlin Developer services, Java Android Developer work, iOS App Development, Android SDK Development, BLE App Development, Bluetooth Low Energy integration, VoIP App Development, WebRTC integration, Firebase integration, API Integration, AI Mobile App Development, Wear OS apps, Android TV apps, Location Tracking App development, and Mobile App Maintenance. If you need a dependable Mobile App Developer for a new Android/iOS app, existing app improvement, SDK integration, BLE device work, VoIP calling, Firebase setup, AI mobile app features, location tracking, or long-term mobile maintenance, I can help.