Graduated from EELU university , Information technology branch ANDROID TECH STACK : Android Kotlin : Retrofit, Rest APIs, MVVM, HILT, Material UI, TensorFlow lite Integration, Firebase, AdMob , Google In App Purchases , Google In App Subscription, Google Maps, MapBox, GeoFence, Augmented Reality, Bluetooth, Ai integrations and More Worked at Luxolis , JetKite , Jksol Ai Apps, Alarm Apps, Music Apps, Augmented Reality Apps, Bluetooth Find Apps, Social media Apps

Software engineer specialized in the development of native client applications for REST web services with most of the experience in Android technology stack. Developing all layers of client applications, including JSON API integration, authentication mechanisms, and user interface elements. Extensive experience in using RxJava and EventBus library.

I'm the Android developer who built in-vehicle navigation for Harley-Davidson and a 100,000+ download app with on-device AI. Need the hard parts done, Bluetooth/BLE, on-device AI, or native speed that can't lag? That's my lane. 8+ years, Kotlin-first. See exactly how I work in my Portfolio below: iThing, a live open-source IoT dashboard (99.6% Kotlin, Clean Architecture, Jetpack Compose), and Ambicam, my 100,000+ download surveillance app on Google Play. I also ship cross-platform with Kotlin Multiplatform (KMP), so you get iOS and Android from one codebase. Most clients come to me with one of these: • A Bluetooth/BLE device that pairs but won't stay connected or sync reliably • An app that needs AI running on the device, not a slow round-trip to the cloud • A native Android app that lags, drains battery, or crashes under load • Two separate budgets for iOS and Android when one shared codebase would do SERVICES I PROVIDE BLE & IoT-Connected Apps • BLE / Bluetooth device pairing, reconnection and background sync • Zigbee, TCP/IP and WiFi smart-device integration • Smart-home, wearable, healthcare and industrial IoT apps • Device data synced to your backend over REST API and Firebase • Native hardware integration that no-code tools and AI cannot fake On-Device AI & Computer Vision • On-device ML with TensorFlow Lite (data never leaves the phone) • Face recognition, number-plate / object detection, OCR (OpenCV) • Camera pipelines and real-time inference • Gemini and Claude API integration for cloud LLM features Native Android App Development • Kotlin, Jetpack Compose, Clean Architecture, MVVM, Coroutines, Flow • REST API integration, Firebase, Room, offline-first apps • Performance tuning, JNI/NDK and C/C++ for the critical paths • Automotive-grade, latency-sensitive, real-time systems • Full lifecycle: architecture to Play Store launch Kotlin Multiplatform (KMP) Cross-Platform • One shared Kotlin codebase for iOS and Android (60-95% shared) • Compose Multiplatform for shared UI • Roughly 35-50% cheaper than two native teams • Migrating an existing Android app to KMP PROVEN RESULTS (see for yourself) • iThing, a live open-source IoT dashboard (in my Portfolio): 99.6% Kotlin, Clean Architecture + MVI, Jetpack Compose, Hilt • Ambicam, a 100,000+ download Android surveillance app I built and maintain solo, on Google Play (iOS in Swift too) • In-vehicle navigation for Harley-Davidson (TomTom Navkit): led 5 engineers, 25% latency reduction • On-device face + number-plate recognition (TensorFlow Lite + OpenCV) and native C/C++ live streaming via JNI/NDK • BLE, Zigbee, TCP/IP and WiFi integrations for government-scale tracking and attendance hardware • First Upwork contract closed at 5.0 with all five client-insight endorsements HOW I WORK Communication: I reply within a few hours, give you honest timelines, and tell you the moment something changes. No silent weeks. Quality: Clean architecture, code that respects the Android lifecycle and device memory, tested on real hardware (not just an emulator). Where I fit: A senior Android app developer based in Munich, fluent in English and Hindi, conversational German, comfortable in EU time zones and GDPR-aware by default. TECHNOLOGY Native: Kotlin, Java, Jetpack Compose, Clean Architecture, MVVM/MVI, Coroutines, Flow, Hilt Cross-platform: Kotlin Multiplatform (KMP), Compose Multiplatform AI/ML: TensorFlow Lite, OpenCV, on-device ML, Gemini API, Claude API Native/Perf: JNI/NDK, C/C++, real-time streaming, performance profiling IoT/Hardware: BLE, Bluetooth, Zigbee, TCP/IP, WiFi, smart-device integration LET'S BUILD IT If your project involves a Bluetooth or IoT device, on-device AI, a performance-critical Android app, or a Kotlin Multiplatform build, send me the details. I will reply within a few hours with an honest read on feasibility, the approach I would take, and a realistic timeline. What is the hardest technical part of your app, the piece you are least sure can be done? Tell me that first. - Khyati Keywords: Android App Developer, Kotlin Developer, Mobile App Developer, Jetpack Compose, Kotlin Multiplatform (KMP), BLE Developer, IoT App Developer, On-Device AI, TensorFlow Lite, OpenCV, Native Android, Android NDK, Clean Architecture, Firebase, REST API, Cross-Platform App Developer, iOS Developer.

I’m a dedicated Android and Flutter developer with 13+ years of professional experience building reliable, scalable, and user-friendly mobile and web applications. What I Can Help You With: ✅ Android app development (Java, Kotlin, MVVM) ✅ Flutter mobile & web app development (BLoC state management) ✅ Firebase (Firestore, FCM, Storage, Analytics, Hosting) ✅ REST API integration & real-time socket communication ✅ Google Maps, GPS & location-based apps ✅ BLE & IoT device integration ✅ Hardware communication (MODBUS, BACnet, USB Serial OTG) ✅ In-App Purchases & AdMob integration Project Experience: - Built 2 Flutter mobile apps and 5 Firebase-based web apps - Developed Android apps for IoT, industrial hardware, and RealWear wearable devices - Implemented real-time data, analytics, and secure backend communication I focus on writing clean code, optimizing performance, and ensuring long-term maintainability. Whether you need a full app from scratch or enhancements to an existing project, I’m ready to help. 📌 Available for long-term contracts and challenging projects 📌 Comfortable working independently or with teams Thank You Durgesh

🚀 Looking for a Native Android Developer who can build, improve, or scale your Android app? I'm Inam Ullah Khan, a Native Android Developer with 3+ years of experience building production-ready Android applications. With a 100% Job Success Score and 5-star client feedback, I help startups and businesses transform ideas into fast, scalable, and user-friendly mobile apps. I specialize in AI-powered apps, E-commerce, Healthcare & Fitness, SaaS, and custom business applications using modern Android technologies. Whether you're launching a new product, upgrading an existing app, integrating Firebase, or preparing for Google Play Store release, I focus on delivering clean architecture, excellent performance, and long-term maintainability. 🚀 Core Android Development Services 📱 Native Android App Development 🔹 Native Android Development with Kotlin & Java 🔹 Android SDK, Jetpack Compose & XML UI 🔹 Responsive interfaces for phones and tablets 🔹 MVVM & Clean Architecture 🔹 Material Design 3 🔹 Coroutines, Flow & LiveData 🔹 Custom UI, animations, and smooth user experiences 🔹 Android Studio & Git-based development 🔥 Backend & API Integration 🔹 REST API & GraphQL Integration 🔹 Firebase Authentication 🔹 Firebase Firestore & Realtime Database 🔹 Push Notifications (Firebase Cloud Messaging) 🔹 Google Sign-In & Social Authentication 🔹 Payment Gateway Integration 🔹 Offline data synchronization & caching 🤖 AI Mobile App Development 🔹 OpenAI API Integration 🔹 AI Chatbots & Virtual Assistants 🔹 Prompt Engineering 🔹 AI-powered recommendations and smart features 📍 Maps & Real-Time Features 🔹 Google Maps SDK 🔹 GPS Tracking 🔹 Live Location 🔹 Route Navigation 🔹 Geofencing 💾 Database & Networking 🔹 Room Database 🔹 SQLite 🔹 Firebase Database 🔹 Retrofit & OkHttp 🔹 JSON Parsing 🔹 Secure API Communication ⚡ Performance & Security 🔹 Performance Optimization 🔹 Memory Optimization 🔹 Crash Fixing & Debugging 🔹 Secure Authentication 🔹 Data Encryption 🔹 ProGuard / R8 Code Obfuscation 🔹 Google Play Store Release Optimization 🛠 Tech Stack Languages Kotlin Java Frameworks & Libraries Android SDK Jetpack Compose Android Jetpack Coroutines Flow Hilt Backend & Database Firebase Retrofit OkHttp Room Database SQLite GraphQL Tools Android Studio Git GitHub Postman ⭐ Why Clients Choose Me ✔ 100% Job Success Score ✔ Production-ready Android applications ✔ Clean, scalable, and maintainable code ✔ Fast & transparent communication ✔ Daily progress updates ✔ On-time delivery ✔ Long-term support after launch ✔ Focus on performance, reliability, and user experience 📩 Let's Build Your Android App Whether you need a brand-new Android application, AI integration, Firebase backend, API integration, bug fixing, performance optimization, or Google Play Store deployment, I'm ready to help. Send me a message with your project idea, and I'll provide a clear technical plan to turn it into a high-quality Android application.

ON TIME, ON BUDGET, HIGH QUALITY APPS Almost any app you need I can create it, fix it, improve it for you. Good Communication, easy to work with, enthusiastic, perfectionist. 5+ years of experience Prototyping & Concept Development Worked in complex apps fixing bugs, cleaning the code, etc. SDK NDK JAVA C Image Processing Photo Editor Games Camera AdMob Algorithms Optimization for speed and small apk size ETC. Attention to detail Perfectionist

$𝟑𝟎𝐊+ 𝐢𝐧 𝐂𝐥𝐢𝐞𝐧𝐭 𝐑𝐞𝐯𝐞𝐧𝐮𝐞 | 𝟑𝟎+ 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 | 𝟏𝟎𝟎% 𝐂𝐥𝐢𝐞𝐧𝐭 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐢𝐨𝐧 My goal is simple - your mobile app should be stable, scalable, and valuable for your business. I’m Olha, a Mobile App Developer specializing in native iOS and Android development with Swift, SwiftUI, Kotlin, and Java. I help startups, SaaS companies, healthcare products, fintech platforms, logistics businesses, streaming services, and enterprise teams build mobile applications that are ready for real users. Whether you need an MVP, a new mobile app from scratch, improvements to an existing iOS or Android app, or long-term mobile development support I can help you move from idea to launch with clean native development. ✔️ Mobile App Developer — full-cycle mobile app development from idea, architecture, and development to App Store and Google Play release. ✔️ iOS Developer — native iOS apps built with Swift, SwiftUI, Objective-C, Apple frameworks, and scalable architecture. ✔️ Android Developer — native Android apps built with Kotlin, Java, Android Studio, Google SDKs, and clean maintainable code. ✔️ Native iOS & Android Development — stable, fast, and user-friendly mobile apps without unnecessary cross-platform complexity. ✔️ Long-Term Mobile Development Partner — support, maintenance, new features, performance optimization, and product scaling after launch. 🔥 ACHIEVEMENTS ✔️ 8+ years of experience as a Mobile App Developer building native iOS and Android applications across multiple industries. ✔️ 30+ mobile app development projects delivered for startups, SaaS, healthcare, fintech, logistics, streaming, wellness, and enterprise products. ✔️ $30K+ in client revenue supported through mobile app development, product improvements, and long-term development cooperation. ✔️ Native mobile apps built for products with 2M+ downloads, 500K+ users, and high daily engagement. ✔️ iOS and Android applications delivered for logistics platforms operating across 60+ cities. ✔️ Mobile app development for AI-powered platforms, fintech products, wearable apps, booking systems, delivery apps, and streaming solutions. ✔️ Strong experience improving existing iOS and Android apps through performance optimization, UI/UX improvements, bug fixing, and feature development. 🚚 WHERE I DELIVER ✔️ As a Mobile App Developer — I build mobile applications from MVP to production-ready product, including architecture, development, integrations, testing, deployment, and maintenance. ✔️ As an iOS Developer — I deliver native iOS apps for iPhone, iPad, Apple Watch, and Apple ecosystem products using Swift, SwiftUI, and Objective-C. ✔️ As an Android Developer — I deliver native Android apps for smartphones, tablets, WearOS devices, and Android-based ecosystems using Kotlin and Java. ✔️ As a Native Mobile App Developer — I work with Firebase, AWS, REST APIs, GraphQL, push notifications, subscriptions, analytics, payments, and real-time features. ✔️ As a long-term development partner — I help improve existing mobile apps, reduce technical debt, optimize performance, and add new features without breaking the product. 🏆 INDUSTRY IMPACT ✔️ Healthcare & Wellness Apps — native iOS and Android development for wellness platforms, healthcare tools, wearable integrations, biometric data, and user activity tracking. ✔️ Fintech Mobile Apps — secure payment flows, Stripe and PayPal integrations, Apple Wallet features, subscription systems, and financial dashboards. ✔️ Logistics & GPS Apps — GPS tracking, geofencing, delivery tracking, real-time location updates, driver apps, and logistics management tools. ✔️ Streaming & IPTV Apps — IPTV applications, OTT platforms, FireTV apps, video playback optimization, and low-latency streaming features. ✔️ Wearables & IoT Apps — Apple Watch, WearOS, BLE devices, IoT sensors, smart devices, and biometric integrations. ✔️ AI-Powered Mobile Apps — AI productivity apps, AI wellness platforms, LLM integrations, real-time analytics, and AI-powered user experiences. ✔️ Booking, Delivery & Marketplace Apps — mobile products with user profiles, payments, notifications, dashboards, real-time updates, and scalable app architecture. ⚒️ HOW I BUILD ✔️ iOS Development: Swift, SwiftUI, Objective-C, Xcode, Apple frameworks, Apple Watch, Apple Wallet, App Store deployment. ✔️ Android Development: Kotlin, Java, Android Studio, Google SDKs, WearOS, Google Play deployment, Android architecture. ✔️ Mobile App Development Stack: Firebase, AWS, REST APIs, GraphQL, push notifications, subscriptions, payments, analytics, dashboards, real-time tracking. ✔️ Product Development: MVP development, startup mobile app development, enterprise mobile apps, UI/UX optimization, performance improvements, feature development. ✔️ Architecture & Workflow: clean architecture, scalable codebase, CI/CD, Agile workflow, code review, app maintenance, long-term support.

Senior android developer +7 year's experience , working on different techs latest techs like jetpack compose, ktor , koin , cmp , welcome to connect me any time

Over the span of 13 years, I've immersed myself in the realm of native Android application development, culminating in a diverse portfolio that encompasses an array of dynamic projects. This includes the creation of highly secure and encrypted communication platforms (OTTs), innovative social networks, robust cryptocurrency exchanges, efficient system utilities, intuitive online stores, intelligent smart assistants, and a wide spectrum of other application categories. At the core of my skill set is the art of crafting resilient and high-performance Android applications that seamlessly traverse the landscape of various devices – from smartphones to tablets – all while optimizing CPU and memory resources. My expertise extends beyond coding; I possess extensive experience in architecting efficient team workflows, along with a keen eye for conducting meticulous code reviews, ensuring the delivery of exceptional projects. My hands-on proficiency involves constructing formidable codebases using the MVP/MVVM architecture, employing languages such as Java and Kotlin, and harnessing the power of Gradle. This proficiency is underscored by a deep-seated understanding of essential object-oriented programming concepts, a rich repertoire of software design patterns (including Singleton, Observer, Factory, and Decorator), comprehensive testing methodologies (spanning Unit, Integration, and Automated UI tests), and a spectrum of cutting-edge technologies that have been embraced by the Android development community. As I embrace new horizons, I am actively seeking opportunities not only to engineer and deliver top-tier applications but also to offer innovative solutions that can fuel the growth of your business. I invite you to connect with me, and let's collaboratively shape the trajectory of your applications and business endeavors.

🚀 I'll launch your Android app - fast, clean, and scalable! Many of my clients are startup founders, product managers, and marketers who need high-quality Android apps - built fast, with long-term scalability and Google Play compliance. I’m a Senior Android Developer with 8+ years of experience ✅ MVPs & startup prototypes ✅ Full-featured apps from scratch ✅ Firebase-powered apps (Auth, Firestore, Push, Remote Config) ✅ API integrations (Subscriptions, Ads, Maps, Stripe, REST, BLE, NFC, GPS) ✅ White-labeled apps for performance marketing (WebView or native, Play-compliant) ✅ Refactoring legacy: Java → Kotlin ✅ SDK & dependencies updates (targetSdk upgrade, etc.) 📈 Results I Deliver - Published 20+ apps to Google Play - Built MVPs in under 2 weeks - Reduced crash rates by up to 30% during refactors - Helped apps scale to 5M+ users - 15 apps became profitable after adding subscriptions or ads 🧠 Tech Stack Kotlin, Java, Jetpack Compose, Coroutines, MVVM, MVI, Clean Architecture, Room, Retrofit, Google API (in-app-billing, maps, auth etc.), Firebase services (push, remote config, database, analytics), GraphQl, automated testing etc. What I do most often 🔹 Firebase Integration - Set up Firebase Authentication (Google, Email) - Configure Firebase Realtime Database & Firestore - Enable Remote Config for dynamic feature control - Implement Firebase Cloud Messaging (FCM) for push notifications - Track custom events in Firebase Analytics - Set up Crashlytics and in-app updates (App Distribution) 🔹 UI & Design - Build Jetpack Compose UI based on Figma or Material Design - Implement dark/light theme switch - Add custom fonts and styles 🔹 WebView & White Apps - Create WebView-based apps for Google Play - Develop white-labeled apps with backend flexibility - Integrate cloaking logic via Remote Config or WebView bridging 🔹 API & Backend Integration - Connect app to REST or GraphQL APIs - Handle file upload/download - Display server data in UI (lists, forms, detail pages) - Implement Retrofit + Room local caching 🔹 Location & Maps - Show user location on Google Map - Display places/objects on the map - Build directions between two points - Use Geocoding and Places API 🔹 Payments - Integrate Stripe for payments and subscriptions - Use Google Play Billing Library for subscriptions and purchases 🔹 Camera & Media - Take photo or video using CameraX - Add watermarks to captured images - Compress and upload media files 🔹 Hardware Features - Implement BLE and NFC interactions - Use GPS tracking and geofencing - Work with Beacons and Android TV 🔹 Data Storage - Set up Room, Realm, or StorIO for local data storage - Enable offline-first functionality with sync 🔹 Debugging & Maintenance - Fix crashes, bugs, and ANRs - Monitor logs and handle edge cases - Improve battery and memory efficiency 🤝 Let’s work together If you’re looking for a developer who delivers fast, clean, scalable Android apps - I’m ready to help. Send me a message, and let’s launch your product 🚀