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David T.
$30/hr
100% Job Success
$400K+ earned
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Senior Android Developer with 14+ years of experience building, maintaining, and scaling production mobile applications. Specialized in Kotlin, Jetpack Compose, MVVM + Clean Architecture, Flutter, Coroutines + Flow, Hilt, Room Database, Compose Navigation Ai-Assisted Development (ChatGPT, Gemini,Claude Code, Copitot) and Kotlin Multiplatform. Strong experience developing high-quality Android apps focused on performance, scalability, clean architecture, and great user experience. I have worked on long-term projects involving app maintenance, feature development, API integrations, bug fixing, Play Store releases, and production support. Technical Skills: • Kotlin, Jetpack Compose, Java • Flutter & Dart • Kotlin Coroutines, StateFlow, MVVM, Clean Architecture • Kotlin Multiplatform (KMP) • REST APIs, Firebase, Push Notifications • Android SDK, Material 3, Navigation Compose Development Tools: • Android Studio, VS Code • GitHub, GitLab, Bitbucket • Jira, Trello, Asana, Redmine, Basecamp AI-Assisted Development Workflow: Comfortable using modern AI development tools such as ChatGPT, GitHub Copilot, Claudide Code, Cursor-style workflows, and AI-assisted debugging/refactoring to accelerate delivery while maintaining clean and maintainable code quality. I have extensive experience collaborating remotely with international teams, participating in code reviews, improving existing codebases, and delivering stable mobile applications used in production environments. Available for: • Android app development • App maintenance & bug fixing • Jetpack Compose migration • MVP development • API integrations • Long-term mobile projects
David T. has worked .
$20/hr
$200+ earned
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🚀 Award-Winning Mobile Developer delivering scalable, high-performance apps with 4+ years of experience in Flutter and Native Android development. What sets me apart: ✅ Top Software Engineering Intern Award at Vodafone (_VOIS) - recognized among 25+ developers ✅ Successfully deployed production apps including AI-powered solutions, payment integrations, and real-time navigation systems ✅ Expert in Clean Architecture and SOLID principles - I don't just code, I architect solutions that scale ✅ Led development of reusable base code for Flutter that reduced project setup time by 60% My Technical Excellence: Flutter Mastery: State management (BLoC, Riverpod), Clean Architecture, Multi-platform deployment, Flutter Flavors Native Android: Kotlin, Java, Jetpack Compose, XML, MVVM/MVI patterns Advanced Integrations: Firebase ecosystem, Payment gateways (Paymob, Revenue Cat), Google Maps APIs, AI chatbots DevOps: CI/CD with Fastlane & GitHub Actions, GitFlow best practices Recent Achievements: 📱 Built an AI-powered RV trip planner with custom navigation preventing low-bridge collisions 💳 Implemented subscription systems processing monthly payments seamlessly for Android and iOS 👥 Led cross-functional teams and conducted client requirement meetings What you get when working with me: Clear communication and regular updates throughout the project Clean, maintainable code following technology's best practices Pixel-perfect UI implementation from Figma designs to deliver the best user experience Post-launch support and maintenance On-time delivery with attention to detail Ready to transform your app idea into reality? Let's discuss your project requirements and create something exceptional together.
Mohannad E. has worked .
Mohamed B.
$100/hr
100% Job Success
$30K+ earned
Offers consultations
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Seasoned Android developer with 8 years of hands-on experience specializing in native app development using Java and Kotlin. I developed, managed, and published over 25 Android applications on the Google Play Store. Collaborated with over 40 clients on freelance and contract-based projects across various industries. Experienced in creating and managing Google Ads advertising campaigns to drive user acquisition and monetization. All work is personally completed by me, so you can rest assured that your project will not be outsourced. Below are reviews provided by some of my clients: ⭐"Thanks for initiative and tireless efforts in identifying the issues." ⭐"Mohammed delivered and completed everything asked! Most importantly I appreciate his patience and perseverance in getting across the line" ⭐"Outstanding follow-up and very understanding person. would highly recommend!!!" ⭐"My second time working with Mohamed. Once again, he was ahead of schedule and a pleasure to work with." ⭐"Great listener! Looking forward for more good work" Areas of Expertise: • Native Java/Kotlin Android Development • Dagger/Hilt and Coroutines • Stripe gateway, In-App Purchases, and Subscriptions • Firebase features like Authentication, Firestore Database, Realtime Database, Crashlytics and RemoteConfig • OpenAI API and Google Gemini API integration • Developing AR apps using OpenGL ES • REST API / Retrofit • Machine Learning Kit • Legacy Codebase Optimization • Apps Testing (Functional, Performance, Usability, and Security Testing) • Google Play Console, Git, and Admob • 3D Design, UI/UX, and Visual Design • Google Ads Campaign, Influencer Marketing, and Affiliate Marketing • Play Store SEO Advantages of hiring me: • Response time is a couple of minutes • Always aim for quality and perfection • Aim for scalable architecture (MVVM) • Availability across time zones • Candid feedback and constructive advice • Timely delivery is of paramount importance • Fluent English speaker • Testing and Quality Assurance
Atendra S.
$20/hr
100% Job Success
$80K+ earned
Available now
Offers consultations
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✅ 12+ Years in Mobile Development 🏆 Top Rated | Kotlin, iOS, SDKs, BLE, VoIP & System-Level Android Apps I help businesses build stable, production-ready Android/iOS applications designed for long-term reliability, scalability, and real-world usage. Over the last 12+ years, I’ve worked on Android/iOS apps ranging from consumer products to enterprise systems, including VoIP platforms, Android SDKs, BLE integrations, location tracking systems, streaming apps, and custom Android OS-level features. My focus is building and maintaining Android/iOS systems that remain stable, maintainable, and performant over time. 🚀 What I can help you with: ✅ Native Mobile App Development (Kotlin & iOS) ✅ Android SDK Development & Integration ✅ BLE (Bluetooth Low Energy) Applications ✅ VoIP, Audio/Video Calling & Streaming Apps ✅ Background Services & Foreground Services ✅ Existing App Maintenance & Bug Fixing ✅ Play Store Release & Compliance ✅ Performance Optimization & Stability Improvements ✅ Custom Android OS / System-Level Features ✅ Long-Term Product Development & Support ⚙️ Core Android Expertise: ✔ Jetpack Compose & Modern Android Architecture ✔ MVVM, Clean Architecture & Modular Codebases ✔ Firebase, Firestore & Realtime Systems ✔ REST APIs, WebSockets & SignalR ✔ Google Maps & Real-Time Location Tracking ✔ Media Streaming & Real-Time Communication ✔ Offline Storage & Sync Solutions ✔ Push Notifications & Background Processing ✔ In-App Purchases & Subscription Systems ✔ Kiosk Mode & Device Management 🔥 Specialized Experience: ✔ Android SDK development used across multiple applications ✔ BLE communication & external device integrations ✔ WebRTC, Twilio & Linphone integrations ✔ Enterprise Android systems with long-term maintenance ✔ Performance-critical and reliability-focused Android apps 🏢 Some Projects & Domains Worked On: ✔ Spirit Airlines ✔ Santander UK ✔ Plickers ✔ Ringplan VoIP ✔ Tracking & Logistics Applications ✔ Enterprise Cargo & Retail Systems I personally oversee projects from architecture to final delivery. For larger engagements, I collaborate with my in-house team of 25+ developers across Android, iOS, Flutter, backend, QA, web, and DevOps - giving clients a single point of contact backed by complete execution support. If you're building a new Android/iOS product, scaling an existing app, or solving complex Android/iOS issues, feel free to message me. Happy to review your app or requirements before we start.
Atendra S. has worked .
Hastree Technologies Private Limited
Associated with
Hastree Technologies Private Limited
Nam T.
$15/hr
$900+ earned
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I have experience about Java, Kotlin and Flutter. I worked Android about 8 years with many experience about debugging, release app to store, in-app purchase, problem resolving, outsourcing,.. Worked with restful api, web socket, MQTT, IOT, automotive, java backend and many framework. Ready to deliver high-quality Android solutions that meet your project needs efficiently and innovatively.
$14/hr
82% Job Success
$5K+ earned
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Android App Developer with 5+ years of experience building scalable, user-friendly, and high-performance native Android applications. I help startups, businesses, and entrepreneurs turn app ideas into real products — from MVP development to bug fixing, feature upgrades, API integration, Firebase setup, and Play Store publishing. ## What I Can Help You With: ✔ Native Android App Development (Java / Kotlin) ✔ Firebase Authentication / Database / Notifications ✔ REST API Integration ✔ UI Development from Figma / XD Designs ✔ Bug Fixing & Crash Resolution ✔ Performance Optimization ✔ Payment Gateway Integration ✔ Play Store Submission & Updates ✔ Ongoing App Maintenance ## Why Clients Hire Me: ✔ Clean, maintainable code ✔ Fast and clear communication ✔ Reliable delivery timelines ✔ Attention to UI details ✔ Long-term support after delivery If you need a dependable Android developer ho understands both business goals and technical execution, I’d be happy to discuss your project.
$45/hr
100% Job Success
$6K+ earned
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Solutions oriented software engineer with 7 years of experience in android application development (Kotlin/Java) and Flutter app development. - Currently, I am working in an Agile development environment. My experience also includes software project management along with the use of JIRA, Bitbucket. I have also developed and published several Mobile applications in the Google Play Store. I have hands-on experience on: -MVVM , MVP , MVC -RxJava, RxAndroid, Android SDK -Kotlin, Java -Retrofit , Volley -Google Maps API, Gmail Login , Facebook Login -Firebase , Firestore -Push Notifications -MySql, SQLlite , Room -Coroutines , Flow , LiveData -Responsive UI development compose and much more. - Unit Testing - AB Testing
Gaurav  T.
$15/hr
97% Job Success
$50K+ earned
Available now
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✅𝐀𝐧𝐝𝐫𝐨𝐢𝐝 & 𝐢𝐎𝐒 𝐄𝐱𝐩𝐞𝐫𝐭 ✅𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤 ✅ 𝟔 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 ✅$50𝐊+ 𝐄𝐚𝐫𝐧𝐢𝐧𝐠𝐬 🚀 Skilled mobile application developer with 6+ years of expertise in Swift, Swift UI, Kotlin, Java, Flutter(Dart), React Native ➡️ 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐒𝐤𝐢𝐥𝐥𝐬 💡𝐢𝐎𝐒 & 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: Core Data, Core Graphics, Core ML, ARKit, AVKit, UIKit, AVFoundation, ARCore, Android SDK, Retrofit, Firebase, Google Cloud, Google Maps API, Kotlin Multiplatform (KMP) for sharing code across Android, iOS, and other platforms 📱𝐌𝐨𝐛𝐢𝐥𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Swift, SwiftUI, Kotlin, Java, Flutter(Dart), React Native 🌐𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: Social Media APIs, Messaging Engines (XMPP, MQTT), Geo-location, Google Maps 🛠️𝐀𝐝𝐯𝐚𝐧𝐜𝐞𝐝 𝐓𝐞𝐜𝐡: OpenCV, Sensors, Bluetooth (LE), Text-to-Speech 🚀𝐓𝐨𝐨𝐥𝐬 & 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭: CI Integration, Fastlane, Google Play & App Store Submission 📋𝐏𝐫𝐨𝐣𝐞𝐜𝐭 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Trello, Jira, Slack, Asana ➡️𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐎𝐯𝐞𝐫𝐯𝐢𝐞𝐰: 🛒 E-commerce Applications 🚗 Transport Applications 🏥Medical Applications 📱 Social Media Applications 🛠️Utility Applications 🏭 Industry-Specific Applications 🍔 Food and Tourism Solutions 💳 Fintech Applications 📦 On-Demand Service Apps 𝐏𝐫𝐨𝐯𝐞𝐧 𝐑𝐞𝐬𝐮𝐥𝐭𝐬: ✅ Developed apps with 𝟏𝟎,𝟎𝟎𝟎+ monthly active users. ✅ Helped startups gain early adopters for their MVP using TestFlight. 💬 𝐋𝐞𝐭’𝐬 𝐜𝐡𝐚𝐭 𝐫𝐢𝐠𝐡𝐭 𝐧𝐨𝐰! 😊 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: #MobileAppDevelopment #iOSDevelopment #AndroidDevelopment #CrossPlatformDevelopment #Flutter #ReactNative #Swift #SwiftUI #Kotlin #Java #Dart #APIIntegration #RESTAPIs #GraphQL #Firebase #Supabase #UIUXDesign #MobileUIDesign #AppArchitecture #CleanArchitecture #MVVM #MVPDevelopment #AgileDevelopment #AppDeployment #AppStoreSubmission #GooglePlayDeployment #PerformanceOptimization #Debugging #VersionControl #Git #CICD #Fastlane #ThirdPartyIntegrations #PaymentGatewayIntegration #PushNotifications #RealTimeFeatures #ChatIntegration #LocationServices #GoogleMapsAPI #ScalableApplications #CodeOptimization #Testing #AppMaintenance
Gaurav T. has worked .
Kindlebit Solutions Private Limited
Associated with
Kindlebit Solutions Private Limited
$6M+
earned
Affan A.
$23/hr
100% Job Success
$10K+ earned
Available now
Offers consultations
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💡 𝗜 𝘄𝗶𝗹𝗹 𝗿𝗲𝘃𝗶𝗲𝘄 𝘆𝗼𝘂𝗿 𝗮𝗽𝗽 𝗶𝗱𝗲𝗮 𝗮𝗻𝗱 𝘀𝘂𝗴𝗴𝗲𝘀𝘁 𝗶𝗺𝗽𝗿𝗼𝘃𝗲𝗺𝗲𝗻𝘁𝘀 𝗳𝗼𝗿 𝗳𝗿𝗲𝗲 𝗯𝗲𝗳𝗼𝗿𝗲 𝘄𝗲 𝘀𝘁𝗮𝗿𝘁. Are you facing issues with slow apps, crashes, low user retention, or poor monetization? Many mobile apps fail due to bad architecture, unoptimized performance, weak UI/UX, or lack of a clear growth strategy. I help businesses build high-performance, scalable, and revenue-generating mobile apps. With 5+ years of experience in Android & iOS native development, I focus on clean architecture, smooth user experience, strong backend integration, and advanced monetization strategies to turn your idea into a successful product. ▶ 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 ✔ Native Android & iOS Development ✔ Scalable & High-performance app architecture ✔ MVVM, Clean Architecture, SOLID Principles ✔ UI/UX with Jetpack Compose & SwiftUI ✔ App monetization & user growth strategies ✔ AI-powered mobile applications ▶ 𝗦𝗸𝗶𝗹𝗹𝘀 ✔ Kotlin, Java, Swift ✔ Jetpack Compose, SwiftUI, UIKit, XML ✔ Coroutines, Flow, Retrofit, REST APIs ✔ Room Database, SQLite, Firebase (Full Suite) ✔ AdMob, Meta Ads, AppLovin, Mediation ✔ Google Maps SDK, MapBox API ✔ ML Kit, AI APIs (OpenAI, Gemini) ✔ Web Scraping & Data Extraction ✔ In-App Purchases, Subscriptions, Billing ✔ Push Notifications (FCM), Deep Linking ✔ BroadcastReceiver, Services, ViewBinding ✔ Third-party SDK integrations ▶ 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 ✔ Full-cycle Mobile App Development (Android & iOS) ✔ MVP Development for Startups ✔ UI/UX redesign with modern frameworks ✔ API integration & backend connectivity ✔ Ads & Monetization strategy implementation ✔ Firebase integration (Analytics, Crashlytics, FCM, Remote Config) ✔ App performance optimization & scaling ✔ Bug fixing, maintenance & upgrades ✔ App Store & Play Store publishing ✔ Feature development & long-term support ▶ 𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 ✔ Senior Mobile App Developer – Zestlog AI (2024–Present) ✔ Senior Android Developer – CoreDesk (2022–2024) ✔ Android Developer – Westmark (2020–2022) ▶ 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆 ✔ Mobile Applications ✔ AI & Chat Applications ✔ Productivity & Utility Apps ✔ Maps & Navigation Systems ✔ Custom Tools & Keyboard Apps ▶ 𝗗𝗼𝗺𝗮𝗶𝗻 ✔ E-commerce & Marketplace Apps ✔ Social & Communication Apps ✔ AI-based & Chatbot Applications ✔ Location-based & Tracking Apps ✔ Subscription-based Business Models ▶ 𝗧𝗼𝗼𝗹𝘀 ✔ Android Studio, Xcode ✔ Firebase Console ✔ Google Play Console, App Store Connect ✔ Jira, Slack, Bitbucket, GitHub ✔ AdWords, Analytics Tools ▶ 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲? ✔ Clean, scalable & maintainable code ✔ Performance-first development approach ✔ Strong debugging & problem-solving skills ✔ Focus on user retention & monetization ✔ Reliable communication & on-time delivery ▶𝗟𝗲𝘁’𝘀 𝗪𝗼𝗿𝗸 𝗧𝗼𝗴𝗲𝘁𝗵𝗲𝗿 Have an idea or need to improve your existing app? Send me a message, and let’s build something powerful and profitable. 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: android developer, ios developer, mobile app developer, kotlin, java, swift, jetpack compose, swiftui, firebase, admob, app monetization, mobile development, rest api, retrofit, room database, sqlite, coroutines, flow, mvvm, clean architecture, google maps sdk, mapbox api, ai integration, openai api, gemini api, in app purchase, subscriptions, push notifications, firebase cloud messaging, crashlytics, analytics, remote config, ui ux design, performance optimization, app store deployment, play store publishing, web scraping, chatbot development, multilingual apps, deep linking, third party sdk integration, app scaling
Affan A. has worked .
Inam Ullah K.
$15/hr
100% Job Success
$900+ earned
Available now
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🚀 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.