I'm the mobile app developer you're looking for! Why? I build Android and cross-platform products that ship fast, scale cleanly, and create real business value. ABOUT ME • 9+ years and 40+ apps shipped as a mobile app developer across Android, iOS, and cross-platform builds • 25 Total jobs, 100% JSS, Top Rated status, 5-star feedback as a mobile app developer on Upwork • Avg. response time 0-4 hours, ready to start within 24 hours as your mobile app developer • 500K+ downloads across 15+ published apps as an Android developer and iOS developer • 99.9% crash-free sessions, 40% fewer production crashes through Firebase and Sentry monitoring as a full stack mobile app developer • 9+ yrs. Senior Android/Kotlin Engineer, 100% JSS, Top Rated mobile app developer with 5-star feedback across 25 completed jobs • EU/US time-zone overlap, replies within 0-4 hour WHERE I DELIVER • As Android developer kotlin - 20+ native builds, 30% faster release cycles through MVVM, MVI, and Clean Architecture • As iOS developer - 10+ Swift/SwiftUI apps, 25% smoother onboarding through native iOS patterns as an iOS Android developer • As iOS Android developer - 12+ dual-platform products maintained from a single codebase, cutting maintenance cost by 35% • As app developer iOS Android - 8+ cross-platform launches, 4-6 weeks faster time-to-market than building two native teams • As flutter developer and react native specialist - 6+ cross-platform apps, 20% lower dev cost vs. separate native builds • As full stack developer and web developer - 10+ backend APIs and admin dashboards powering every mobile app developer stack end-to-end • As ai mobile app developer - 5+ AI-powered features shipped (voice, vision, LLM), cutting manual workflows by 40% • As Android game developer - 3+ Unity-integrated apps with real-time rendering and physics • As mobile developer and app developer iOS - 15+ App Store and Google Play submissions handled start to finish INDUSTRY IMPACT • GPS & Navigation - 6+ live-tracking map apps, 99.5% location accuracy, powering fleet and delivery use cases as a mobile app developer • Warehouse & Inventory - 4+ barcode-scanning apps built on Zebra SDK, cutting inventory errors by 30% and pick times by 25% as an Android developer • Retail & Hospitality Kiosks - 3+ self-service kiosk apps handling 1,000+ daily transactions each as a mobile app developer • Voice & Speech - 3+ speech-recognition apps with 95%+ transcription accuracy as an ai mobile app developer • Proximity & BLE - 5+ beacon-based apps improving proximity detection accuracy by 25% as an Android developer kotlin specialist • Full Stack Delivery - 10+ end-to-end builds spanning backend, web developer dashboards, and mobile clients as a full stack mobile app developer TYPES OF APPS I'VE BUILT • 15+ GPS-enabled map apps with live location tracking and turn-by-turn navigation as a mobile app developer • 4+ warehouse management apps with barcode scanning and real-time inventory sync as an Android developer kotlin specialist • 3+ kiosk apps for retail, hospitality, and self-service terminals processing 1,000+ transactions daily • 3+ speech-recognition and voice-to-text apps with 95%+ transcription accuracy as an ai mobile app developer • 5+ BLE beacon and proximity-detection apps as an Android developer, plus 3+ Unity-integrated builds as an Android game developer • 6+ cross-platform apps as a flutter developer, and 2+ additional flutter developer rebuilds migrating legacy hybrid apps to native performance • 8+ camera-focused media capture tools and 5+ AI-powered conversational interfaces as an app developer iOS Android HOW I BUILD • 20+ CI/CD pipelines configured, 35% faster build and release cycles as a mobile app developer • Kotlin, Java, Swift, Flutter, React Native - 40+ apps delivered across Android developer, iOS developer, and app developer iOS Android engagements • Jetpack Compose, RxJava, Coroutines, Dagger, Hilt, Koin, MVVM, MVI - core toolkit for every mobile developer and full stack mobile app developer build • Firebase, Android Profiler, Sentry, custom analytics - 99.9% crash-free sessions across 15+ live apps as a mobile app developer • Git, Jenkins, Jira, automated test coverage - structured delivery as a full stack developer and app developer iOS for teams of any size • GPS/Location Services, Google Maps SDK, Speech Recognition, BLE, Unity, Zebra SDK - hardware depth that sets an iOS Android developer apart from a generic app developer Clients keep hiring me as their mobile app developer because the numbers hold up: 9+ years of experience, 25 Total jobs, 100% JSS, Top Rated status, 5-star feedback, and a 0-4 hour response time. Whether you need an Android developer for a native build, an iOS developer for App Store polish, an app developer iOS Android team for a dual-platform launch, or an ai mobile app developer to add intelligent features - I'm ready to contribute from day one. 📩 Let's build something robust, and engineered to last.

Need a Flutter app that scales to millions of users? I build cross-platform mobile products: iOS, Android, FinTech wallets, AI-powered tools that ship fast and grow revenue. FxPro: 15M+ users, multiple international awards. What sets me apart is the rare combination of Flutter depth and full-stack reach. I've architected apps from a 3-month FinTech MVP (Grineo, launched 50% faster than average) to a 15M-download trading platform (FxPro). I work across Flutter, KMP, Swift, Kotlin, React, and Python — so I can own the entire product, not just one layer. Here's what I deliver: 📱 Cross-platform mobile apps - Flutter, KMP (Kotlin Multiplatform), Swift, Kotlin 🌐 Scalable web - React, Next.js, Node.js, .NET Core 🤖 AI & Computer Vision - Python, PyTorch, YOLO, real-time video analysis ☁️ Cloud & security - AWS, Docker, PCI-DSS compliance, PassKey encryption Whether you need an MVP in 90 days or a production system built for 10M+ users, I map out the architecture first so you never rebuild from scratch. 📌 FxPro - architected native mobile apps and high-load backend for a 15M+ download trading platform. Won multiple international awards. 📌 Grineo FinTech Wallet - launched secure MVP in 3 months, 50% faster than industry average, with PassKey encryption. 📌 Volga Surf Camp KMP App - increased service usage 2-4x, reduced admin workload by 3x. 📌 PPE Detection System - real-time AI safety monitoring on construction sites using YOLO and PyTorch. ⭐ 5.0 rating | Top Rated on Upwork | Certified: Flutter Development (Udemy), Full-Stack Web & Mobile (Coursera) I take on a maximum of 3 active clients at a time to give every project focused attention. Send me a message with a brief description of your project and I'll respond within a few hours with a clear next step!

𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 & 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐅𝐥𝐮𝐭𝐭𝐞𝐫, 𝐢𝐎𝐒, 𝐀𝐧𝐝𝐫𝐨𝐢𝐝, 𝐑𝐞𝐚𝐜𝐭, 𝐍𝐨𝐝𝐞.𝐣𝐬 If you’re looking for someone to “build an app,” there are thousands of options. If you’re building a product that needs to scale, perform under pressure, and survive real users, that’s a different conversation. 𝐅𝐨𝐫 𝟗+ 𝐲𝐞𝐚𝐫𝐬, I’ve engineered mobile and web products from concept to scale. Not experiments. Not fragile MVPs. Real production systems are used by millions. 𝐈 𝐰𝐨𝐫𝐤 𝐚𝐜𝐫𝐨𝐬𝐬 𝐭𝐡𝐞 𝐞𝐧𝐭𝐢𝐫𝐞 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐥𝐢𝐟𝐞𝐜𝐲𝐜𝐥𝐞: • Product architecture • Mobile app engineering (Flutter, iOS, Android) • Full-stack web development (React, Next.js) • Backend system design (Node.js, APIs, databases) • Cloud deployment & scalable infrastructure I don’t separate “frontend,” “backend,” and “mobile.” I design ecosystems. 𝐖𝐡𝐚𝐭 𝐘𝐨𝐮 𝐆𝐞𝐭 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞 ↠ Clarity before code. ↠ Architecture before features. ↠ Performance before polish. ↠ Scalability before launch. Because rebuilding later is expensive. Doing it right the first time isn’t. 📍ℂ𝕠𝕣𝕖 𝔼𝕩𝕡𝕖𝕣𝕥𝕚𝕤𝕖 𝐌𝐨𝐛𝐢𝐥𝐞 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 • Flutter (Dart) • Native iOS (Swift, SwiftUI) • Android (Kotlin) • High-performance UI & animation systems 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 • React.js / Next.js • Node.js / Express • REST & GraphQL APIs • PostgreSQL, MongoDB, Firebase • Secure authentication systems • Cloud deployment (AWS, Firebase, DigitalOcean) • CI/CD & DevOps pipelines 📍𝕀𝕞𝕡𝕒𝕔𝕥 𝔻𝕖𝕝𝕚𝕧𝕖𝕣𝕖𝕕 • 50+ production applications • 5M+ user scale • Significant retention and conversion growth • 60%+ performance optimization on high-load systems • Production stability with near-zero crash rates 𝐊𝐞𝐲𝐰𝐨𝐫𝐝𝐬: Flutter developer Flutter app developer Android app developer iOS app developer Cross-platform mobile developer Mobile app development AI mobile app developer Artificial intelligence app development Machine learning app integration Firebase app developer API integration Flutter Hybrid app developer AI solutions for mobile apps AI app developer Mobile App Developer Senior Mobile App Developer Mobile App Development Dating App Flutter Mobile App Development Education App Developer Mobile App Developer Saloon Booking Mobile App Development Dating mobile app development Food Delivery Mobile App Development AI App Development AI Mobile App Developer Chat Mobile App Developer Chat Buddy Mobile App Development 𝐈𝐟 𝐲𝐨𝐮’𝐫𝐞 𝐬𝐞𝐫𝐢𝐨𝐮𝐬 𝐚𝐛𝐨𝐮𝐭 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐚 𝐝𝐮𝐫𝐚𝐛𝐥𝐞 𝐩𝐫𝐨𝐝𝐮𝐜𝐭, 𝐧𝐨𝐭 𝐣𝐮𝐬𝐭 𝐬𝐡𝐢𝐩𝐩𝐢𝐧𝐠 𝐜𝐨𝐝𝐞, 𝐰𝐞’𝐥𝐥 𝐰𝐨𝐫𝐤 𝐰𝐞𝐥𝐥 𝐭𝐨𝐠𝐞𝐭𝐡𝐞𝐫. Click ‘𝙄𝙣𝙫𝙞𝙩𝙚’, and let’s create something extraordinary together!

I appreciate you visiting my profile and taking the time to go through it. I am Ravinder Kumar Senior Mobile App Developer more than 15+ years of experience in Mobile development. -----------------My Technical Experience ---------------------- 𝗠𝗢𝗕𝗜𝗟𝗘 𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗜𝗘𝗦: Swift, Kotlin, Flutter. 𝗕𝗔𝗖𝗞𝗘𝗡𝗗: Node.js, Laravel, CodeIgniter, AWS, Nginx, Docker, Azure. 𝗗𝗔𝗧𝗔𝗕𝗔𝗦𝗘𝗦: MongoDB, PostgreSQL, MySQL, SQLite. 𝗙𝗥𝗢𝗡𝗧𝗘𝗡𝗗: Laravel, JavaScript, Angular, jQuery, Bootstrap, SASS, HTML5, CSS3 ➜ Native iOS Apps: Swift ➜ Native Android Apps: Kotlin, Java, Android Studio, and Android SDK ➜ Hybrid/Cross-platform Apps: Flutter and React Native ➜ Strong knowledge of iOS SDK and main frameworks, including UIKit, AVFoundation, HealthKit, SpriteKit, etc. ➜ Strong knowledge of Android Architecture Components (LiveData, ViewModel, DataBinding, etc) and Dagger framework. ➜ Experience with Google’s Firebase, including Crashlytics and FCM (Firebase Cloud Messaging), as well as push notifications ➜ Experience with integration of payment gateways such as PayPal, Stripe, Braintree, Square, Authorize.Net, Apple Pay, Google Pay, Amazon Pay, Razorpay, etc ➜ Proficient with Google’s Firebase, including Crashlytics and FCM (Firebase Cloud Messaging), as well as push notifications ➜ Proficient with online map SDKs and libraries such as Google Maps SDK, Mapbox SDK, Apple Maps SDK, MapKit, OpenStreetMap, etc ➜ Proficient with WebRTC SDKs like Google WebRTC, Twilio, Sendbird, Agora etc. --------------------Technical Skills------------------ ➜ Social Networking Apps ➜ E-commerce Apps ➜ BLE & IoT Apps ➜ Health and Fitness Apps ➜ Travel and Tourism Apps ➜ Education and E-Learning Apps ➜ Entertainment and Media Apps ➜ Financial Services Apps ➜ Food and Delivery Apps ➜ On-Demand Services Apps ➜ Utilities and Tools Apps ✅ 100% Job Success. ✅ 10000+ Hours Worked. ✅ Top Rated Badge Holder. ✅ 15+ years of Experience Mobile App Development ✅ 24/7 Availability

💼 Senior Full-Stack Developer | 10+ Years of Experience | React Native | Flutter | Swift/Kotlin | NodeJS | VueJs | NestJS | SwiftUI | JetCompose | Firebase | Supabase | Mobile Apps | BLE | GPS | Maps | Scalable Systems | Mobile App Development | AI Mobile App Development | Flutter App Development | React Native App Development | iOS & Android App Development | Full Stack Mobile App Development | Kotlin | Swift | SwitUI | JetCompose | Firebase | REST APIs I am a Senior Full-Stack Developer with 10 + years of experience building high-quality, scalable, and pixel-perfect applications using React Native, Flutter, Swift, Kotlin, NodeJS, Express, NestJS, React, and Vue.js. -- specialize in cross-platform mobile apps, native iOS/Android apps, backend APIs, BLE integrations, real-time systems, mapping, GPS, IoT, and end-to-end product development. If you need a fast, reliable, and experienced developer who can take your idea to production-level quality, I can help. Let’s bring your app idea to life with AI-driven innovation, seamless UX/UI design, and robust scalable architecture. Senior Mobile App Development | Web Development | iOS Android | Flutter RN | React Native | SDK Web dev | Kotlin | Swift | SwiftUI | JetCompose ⭐ Why Clients Hire Me⭐ ✔ 10+ years of experience ✔ End-to-end process: Idea → MVP → Launch → Scaling ✔ Clean, maintainable code (SOLID, MVVM, best practices) ✔ Expertise in AI integrations for smarter user experiences ✔ Full transparency, agile workflow, and long-term partnership ✔ Flexible engagement: fixed-price or hourly ✔️ Fast and scalable delivery ✔️ Clear communication & fluent English ✔️ Clean, well-documented code ✔️ Budget-friendly without sacrificing quality ✔️ Self-managed and deadline-driven ✔ Pixel-perfect UI from Figma ✔ Bug-free, scalable, clean code architecture ✔ Expertise in native (Swift/Kotlin) + cross-platform (React Native/Flutter) ✔ Strong backend experience with Node.js & NestJS ✔ API design, integrations & automation ✔ Performance optimization & code refactoring ✔ OTA updates, CI/CD, deployment (App Store & Play Store) 🛠️ 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 I Work With 🚀 Mobile App Development - React Native, Expo, React Navigation - Flutter, Dart - Swift, SwiftUI, UIKit - Kotlin, Jetpack Compose 🚀 Backend & Full-Stack - Node.js, Express.js, NestJS - MongoDB, Firestore - Firebase Authentication / Firestore / FCM - REST APIs, Realtime DB, Cloud Functions - CI/CD pipelines (Fastlane, GitHub Actions) 🚀 Advanced Integrations - Google Maps, GPS tracking, Geofencing - Bluetooth & BLE (IoT apps) - Payment gateway integration - WebSockets & real-time messaging - Push notifications - Deep linking - Third-party API integration - APIs: REST, GraphQL - AI Tools: OpenAI (GPT), TensorFlow, Computer Vision, Google Gemini, Deepseek 🧩 Industries & Projects I Have Built I have successfully delivered apps in multiple domains: 🎟 Event & Ticket Booking Apps 🍔 Food Delivery & On-Demand Apps 🚖 Taxi Booking & Ride Sharing Apps 🏏⚽ Sports Apps (Cricket & Football) 💇‍♀️ Beauty Service Apps 💬 Real-Time Chat & Video Calling & Social Apps 💘 Dating Applications 🎮 2D Games 📍 GPS & Location Tracking Systems 📡 IoT & BLE-based Apps 🎁 Loyalty Points & Rewards Apps & Coupon Apps 📱 MVP App Development for Startups 💪 Health, Fitness & Meditation Apps ✈️ Travel & Ticket Booking Apps 🗂️ Productivity & Task Management Apps My experience helps me understand both product and technical requirements, ensuring smooth delivery and long-term maintainability. ⭐ Let’s Build Something Great If you need a senior, reliable, and long-term developer who can ship high-quality products, feel free to message me. I’m available for new projects, long-term cooperation, or part-time support. 📞 Schedule a free consultation — click Invite or Message to get started. Thank you, Avtar Singh Mobile App Development, Flutter App Development, Cross-Platform Mobile App Development, Hybrid App Development, Mobile App Design, Android App Development, iOS App Development, Real Estate App Development, Food Delivery App Development, Dating App Development, AI Mobile App Development, Full Stack Mobile App Development, Mobile App Consultation, Mobile App Development Specialist, Native (iOS & Android) Developer, AI Mobile App Expert, Full Stack Developer

Hey Guys! I’m an Android Developer Kotlin dedicated to helping startups and businesses build high-performance mobile applications. Interested? Drop me a message, and I’ll show you my workflow and how I can help your project thrive! What Android Developer Kotlin Do: ⚪️ Android Kotlin Development: Creating native apps for Android using Kotlin and Java modern UI. ⚪️ App Performance: Optimization, bug fixing Android App , and improving Mobile Develop stability. ⚪️ API Integration: Working with Full Stack teams, REST APIs, and real-time features. ⚪️ App Support: Feature updates for iOS and Android, refactoring, and long-term maintenance. I build Android apps that are not just functional but ready for production. Whether you need a native Android Developer to build from scratch or a Kotlin Developer to scale your current Android App product, I ensure the code is clean and predictable. While I focus on the Android Developer Kotlin Java ecosystem, I understand the importance of cross-platform alignment with iOS, Swift, and Flutter. What I Specialize In Android App Development ✔️ Kotlin Developer expertise: Native development for Android apps. ✔️ Android Developer Kotlin Java standards: Clean Architecture, MVVM, modular structure ✔️ Jetpack components (ViewModel, LiveData, Navigation) and Android Screen Reader support. ✔️ Coroutines and background processing for Mobile Developer projects. ✔️ Room database, SQLite, and local storage. Backend & Integrations ✔️ REST API integration and data handling with Spring Boot or JSP Developer backends. ✔️ Firebase (Auth, Firestore, Push Notifications) and Marketing Cloud Developer tools. ✔️ Salesforce Marketing Cloud Developer triggers and external SDKs. ✔️ WebSockets and real-time updates for Mobile Develop solutions. UI & UX ✔️ Modern UI with XML and Jetpack Compose for any Android Developer India or global project. ✔️ Responsive layouts that match the quality of an iOS Developer or Swift specialist. ✔️ Material Design implementation for iOS Android hybrid feel when needed. ✔️ Perfect user flows, even for complex systems like Magento integrations. Testing & Stability ✔️ Debugging and performance optimization across Bulgaria and international markets. ✔️ Memory optimization and Full Stack Developer level code cleanup. ✔️ Transitioning legacy code from Java Developer to modern Kotlin. ✔️ Web Developer collaboration for seamless API handshakes. Tech Stack: ✔️ Languages: Kotlin, Java, Javascript Developer (API-side), Python Developer (Backend-side). ✔️ Platforms: Android, iOS, Flutter, React Native. ✔️ Architecture: MVVM, Clean Architecture, Full Stack. ✔️ UI: XML, Jetpack Compose, Flutter Developer insights, iOS Developer UI standards. ✔️ Database: Room, SQLite, Java Developer legacy support. ✔️ Other: Google Maps API, Payments, IOS integrations, Bulgaria localized services. Android Developer Kotlin focus on delivering Android App working apps with clear logic, stable performance, and code that is easy to maintain. Whether you are looking for a Mobile Developer or a dedicated Android Screen Reader accessibility expert, I've got you covered. Have a project in mind? Click “Invite”, share what you’re building, and I’ll let you know how I can help.

✅ Over 13+ years of experience in mobile development for both iOS and Android Native and Hybrid Platforms. ✅ Upwork Top Rated Talent. ✅ 94% Job Success Ratio, 200K+ Earnings. ✅ 6,500+ hours of experience working on clients & and projects. 👇 Huge experience in delivering mobile applications on a platform like: ✔ React Native ✔ Ionic ✔ Native Android App Development (Kotlin and Java) ✔ PhoneGap ✔ Flutter SDK ✔ iPhone, iPad Native App Development, and Mac OS X App development ( Objective-C and Swift ) ✔ Xamarin( C# ), Xamarin.forms 👇 Fantastic exposure in the following industry to deliver high-quality products: ✔ Fitness and health applications. ✔ Dating Tinder-based applications. ✔ Events-based applications. ✔ Uber-based apps for finding service providers. ✔ Education audio and video apps. ✔ Travel apps for booking flights and hotels. ✔ Medical healthcare apps for doctors and patients. ✔ Geolocation apps for finding restaurants. 👇 Technical Skills- ✔ iOS & Swift Skill: Autolayout, Adaptive Layout, UIKit, MapKit, Animation, Core Data, Networking, CocoaPods. ✔ Programming Lang: C, C++, Objective-C, Swift, Java, Android, C#, Asp.Net, Dart. ✔ Software Tools: Android Studio, Xcode, Visual Studio, Eclipse, Source Tree, Git, Visio, Sprite Builder, Tiled. ✔ Android Skills: Fragments, Intents, Services, Broadcast Receiver, Provider, Material Design, Recycler View, Gradle. Great experience supporting Data safety forms in Google Play Console ✔ Library Used: GSON, Retrofit, Picasso, Parse, OAuth, AFNetworking, MBProgressHud, ReacticeCocoa & more. ✔ Other: HTML, CSS, XML, JSON, Jscript, JQuery, PHP, UML, SQL, Rest APIs, Javascript (ES5, ES2015, TypeScript, CoffeeScript) - React, Redux, mobx. ✔ Specialization: Image Editing App, Video Editing Mobile App, BLE, Face Editor & Makeup App. A great experience in computer vision in these areas Media Streaming, Color Detection, Edge Detection, Face Detection, Pose Detection, Hand Gesture Recognition, Image Segmentation & Classification & Colorization, and Object Tracking. Regards, Arvind J

Top Rated Plus | $200K+ Earned on Upwork | 100% Job Success | 10+ Years on Upwork I'm an Android Developer and Mobile App Developer with 12+ years of professional experience and a PhD in Computer Science. With $200K+ earned, 100% Job Success, and Top Rated Plus status on Upwork for 10+ years, I build production-ready Android and mobile applications that scale, not MVPs that fall apart under real user traffic. As an Android Developer, my core work covers native Android App Development in Kotlin and Java, full-lifecycle delivery from requirements and architecture through Google Play release, and backend integration with REST APIs, Firebase, AWS, and third-party services. I've shipped apps with 1M+ downloads. As a Mobile App Developer, I also deliver cross-platform solutions using React Native and Flutter when a project needs iOS and Android from a single codebase. As an Android Developer and Mobile App Developer, I've delivered across fintech, healthcare, logistics, social networking, sports, e-commerce, fitness, and entertainment. I also have extensive experience in healthcare and safety applications where data encryption, secure messaging, and compliance are non-negotiable. My architecture approach as an Android Developer is Clean Architecture with MVVM and MVP patterns, Kotlin Coroutines and Flow for async tasks, Hilt for dependency injection, and Jetpack Compose for modern UI. I use RxJava where legacy codebases require it and maintain CI/CD pipelines with Jenkins and TeamCity to keep releases reliable and predictable. As a Mobile App Developer and Kotlin developer, I take ownership of API planning with backend teams, code reviews, refactoring, and full technical documentation so the codebase remains maintainable long after delivery. I work as part of a team at Requestum, which means I can bring in backend, iOS, or QA specialists when a project needs more than one mobile app developer to ship on time. Clients typically work with me when they need: - an Android Developer to build a native Kotlin app from scratch to Google Play release - a Mobile App Developer to deliver iOS and Android from a single React Native or Flutter codebase - an Android App Developer to refactor, optimize, or extend an existing Kotlin or Java codebase - a Kotlin developer who understands Clean Architecture and can own the full technical roadmap - a mobile app developer with experience in fintech, healthcare, logistics, or social platforms If you need an Android Developer who ships production-grade apps and takes full technical ownership, let's talk. Main stack: Kotlin, Java, Android SDK, Jetpack Compose, Android Jetpack, Hilt, Kotlin Coroutines, RxJava, Retrofit, Firebase, AWS, Google Maps API, Stripe, React Native, Flutter, Room, Realm, Jenkins, Docker.

Top Rated Mobile Developer | Full Stack Mobile & Web Developer | iOS, Android, AI, Kotlin, KMP I help startups turn app ideas into live, scalable mobile products, fast, clean, and built to grow. What I help with: → Mobile App Development → Android App Development → Native App Development → iOS Development → Android → iPad App Development → Kotlin → Mobile App → Java → Android SDK → Hybrid App Development → In-App Purchases → Core Java → Smartphone → Flutter → Android Studio → Android Tablet → Android App → Firebase What I can build for you: → Native Android apps using Kotlin, Jetpack Compose, and Clean Architecture → Cross-platform apps using Kotlin Multiplatform — Android + iOS from one shared codebase → Full-stack mobile and web platforms with scalable backend integration → AI-powered mobile features, automation, smart search, recommendations, and chat experiences → Payment integrations including Stripe, PayPal, and local payment gateways → Real-time features using Firebase, WebSockets, live tracking, and push notifications → Maps, GPS, delivery tracking, location-based services, and Play Store deployment → App optimization for speed, stability, crash reduction, and smaller app size Industries I’ve shipped in: Fintech · E-commerce · Delivery & Tracking · Streaming · Government Services · SaaS · Startup MVPs You’ll get clear communication, realistic timelines, clean code, and a product-focused developer who understands startup speed without sacrificing quality. Send me your app idea, Figma design, or current codebase, and I’ll reply with a clear delivery plan.

I am a dedicated and passionate Software Engineer with a robust background in backend development, particularly specializing in NestJs and Spring Boot. My experience extends to native and multiplatform mobile development with kotlin and web development with Angular, providing me with a comprehensive understanding of full-stack development. My enthusiasm for technology also drives my interest in DevOps, where I explore innovative software architecture solutions to enhance efficiency and scalability. Additionally, I have hands-on experience in native Android application development, utilizing Android Studio with both Java and Kotlin to create seamless and user-friendly mobile applications. As I continue to grow and expand my expertise, I am eager to collaborate on challenging projects and contribute to cutting-edge advancements in the software engineering field