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Hire the best Android SDK Specialists in Vietnam

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  • $40 hourly
    • 5.0/5
    • (41 jobs)
    I specialize in Kotlin/Java development with a strong focus on Android and Kotlin Multiplatform (KMP). I build scalable, maintainable, and high-performance applications using modern architectures and best practices. Key Skills & Expertise: - UI Development: Jetpack Compose, Custom Views - Architectures: Clean Architecture, MVVM, MVP, MVC, MVI - Dependency Injection: Dagger 2, Hilt - Networking: REST APIs (JSON, XML, Retrofit/OkHttp) - Social Media Integration: Facebook, Google - In-App Monetization: In-App Billing, Google AdMob - Database Management: SQLite, Room Database - Asynchronous Programming: Coroutines/Flow, RxJava2 - Multiplatform Development: Kotlin Multiplatform (KMP) - Multimedia & Media Player Integration - Version Control: Git - Other Tools & Libraries: A wide range of libraries to optimize app performance 🚀 Let’s Build Something Great! I’m open to discussing your project to see how my skills can bring your ideas to life. Contact me, and let’s make your app a success!
    Featured Skill Android SDK
    Business with 10-99 Employees
    API Integration
    Payment Functionality
    QR & Barcode Scanner
    Chat & Messaging Software
    WebRTC
    JetPack
    Retrofit
    XMPP
    Kotlin
    Native App Development
    Firebase
    Smack
    Android
  • $18 hourly
    • 5.0/5
    • (13 jobs)
    I'm a developer with experience in building Android App for small and medium sized businesses. I'm experience in Android Kotlin and Java Framework. I'm a responsible person at work and always finished with the best quality. Programming Languages 🟠 Kotlin 🟠 Java Android Jetpack Components 🟠 Room 🟠 LiveData 🟠 Dagger-Hilt 🟠 View Binding 🟠 Data Binding 🟠 Data Store 🟠 Navigation Component 🟠 Coroutines Google services 🟠 Firestore Databese 🟠 Firebase realtime database 🟠 Cloud Storage 🟠 Cloud Messaging 🟠 Google AdMob 🟠 Google Map Entegration Web service connection 🟠 Retrofit 🟠 HttpURLConnection 🟠 Jsoup
    Featured Skill Android SDK
    Android Studio
    Mobile App Development
    Java
    Firebase
    Kotlin
    Android App Development
    API Integration
    Android
    Native App Development
  • $35 hourly
    • 4.4/5
    • (21 jobs)
    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.
    Featured Skill Android SDK
    Performance Optimization
    Model View Presenter
    Object-Oriented Programming
    Android App Development
    Gradle
    Android Studio
    Chat & Messaging Software
    API Integration
    SQLite
    Kotlin
    Android
    Java
    Native App Development
  • $30 hourly
    • 4.6/5
    • (31 jobs)
    - 🧑‍💻 I have 10 years of experience working as a native mobile app developer for both Android and iOS platforms. - 🌱 With a decade of full-time software development experience, I am well-equipped to help you fix any issues with your existing application, add new features, or create a brand-new application from scratch. - 🔥 My passion lies in crafting top-notch applications that are meticulously optimized and paying close attention to detail. - 🚀 It will be a pleasure for me to help you with achieving your goals. - 💪 Swift, Objective C, SwiftUI, UIKit, Java, Kotlin, XML Jetpack Compose, GCD, Coroutine, Combine, MVC, MVVM, Clean Architecture, AWS, Google Cloud, Firebase, MapBox, Google Map, Google Drive, Cloudinary, Agora, Firestore, OpenCV, Tensorflow, Pytorch, RoomDB, RealmDB, CoreData, SwiftData, SQLite, Encrypt, Decrypt, Image processing, GPUImage, Metal, DeepFace, Video stream, Video call. Best regards
    Featured Skill Android SDK
    SwiftUI
    Google APIs
    Bluetooth
    iOS SDK
    Android App Development
    iOS Development
    Objective-C
    C++
    iOS
    C
    Kotlin
    Swift
    Android
    Java
  • $30 hourly
    • 5.0/5
    • (26 jobs)
    Hello, My name is Nam. If you are looking for an Mobile Developer to build a App? You are at the right place I am an experienced Mobile Apps Developer having 9+ years of experience in Android Apps Development with 4 years with Java Language and 5+ years for Kotlin with 2+ years for Flutter. Also, I have experience crawling data from the web with Python. Feel free to contact me anytime. Just shoot me a message and I will be there for your service. Regards, Nam Tran
    Featured Skill Android SDK
    Algorithm Development
    Model View ViewModel
    TV Set
    Solution Architecture
    Android
    RESTful Architecture
    Git
    Kotlin
    Python
    Java
  • $18 hourly
    • 4.0/5
    • (34 jobs)
    8 years experience in mobile development (Visual Studio, Android Studio, Xcode, Xamarin Studio, Eclipse), understanding grasp clearly the database, HTTP Restful, in-app purchases(IAP), payment, mutil-languages, Google maps, GPS, Parse, image processing... Also have experienced in Xamarin Android-IOS-Win (MVVM-Cross), Xamarin Forms and NDK (C ++ for Android, IOS) ... Languages: C#, C/C++, Java, Swift, Objective C,... Database platforms: SQLite, Realm, MS SQL/Entity Framework, MySQL, MongoDB... Systems: Windows, OS X, Linux Cloud Platforms: Parse, Cloudbase, Firebase, AWS, MS Azure, ... Others: Crashlytics, Analytics, Stripe, Paypal, Checkout, Facebook, Twitter, Google Map API,...
    Featured Skill Android SDK
    .NET Framework
    .NET Core
    C#
    Android App Development
    Kotlin
    Xamarin
    React Native
    iOS Development
    Flutter
    Swift
    Android
    iOS
  • $35 hourly
    • 4.9/5
    • (17 jobs)
    Overview: I bring 10 years of experience in both Web and Mobile software development to the table. My primary focus lies in iOS and Android application development. Over the past 9 years, I have successfully contributed to the creation of large and complex iOS and Android projects, including notable applications such as Whilo, doForms, SelfieYo, SeekPeak, Cloki, CardPool and ION360 – all available on the App Store and Play Store. My Role: Engage in continuous self-training to stay adept in project requirements. Demonstrate proficiency in understanding and applying the Software Development Life Cycle (SDLC) to projects. Design, develop, and deliver new features within existing applications, as well as for new projects, with a primary focus on the iOS, Android platform. Innovate and create mobile applications based on client requirements. Perform comprehensive unit testing, functional testing, and bug fixes, delivering apps for final testing. Translate application logic into effective UI implementations. Actively participate in code reviews to ensure adherence to proper coding standards. Collaborate with fellow developers, providing mentorship to team members and contributing to efficient goal achievement. Follow, maintain, and evolve the team’s development processes, code libraries, and methodologies. Address and troubleshoot technical issues. Work closely with an expert team.
    Featured Skill Android SDK
    Braintree
    PayPal Integration
    Branch.Io
    Google Maps
    ASP.NET
    Apple Xcode
    iOS Development
    iOS
    Firebase Realtime Database
    Flutter
    Firebase
    React Native
    Swift
    Objective-C
  • $35 hourly
    • 4.9/5
    • (68 jobs)
    5-year experience Agile developer who specializes in mobile development using modern cross-platform technology like Flutter and React Native. On top of that, I'm well-trained with Agile practices and currently certified by Atlassian and Scrum.org 📱 FLUTTER ✅ 𝐀𝐑𝐂𝐇𝐈𝐓𝐄𝐂𝐓𝐔𝐑𝐄: Provider, BLoC, MobX, GetX ✅ 𝐒𝐓𝐎𝐑𝐀𝐆𝐄: Shared preferences, sqflite, sembast, Cookiejar, mmkv_flutter ✅ 𝐍𝐄𝐓𝐖𝐎𝐑𝐊𝐈𝐍𝐆: Dio, Flutter Downloader ✅ 𝐈𝐌𝐀𝐆𝐄: Cached Network Image, Bitmap, Photo View ✅ 𝐓𝐃𝐃: Mockito, Flutter Widget Test ✅ 𝐎𝐏𝐒: Bitrise, Fastlane, AppCenter, AWS 📱 𝐑𝐄𝐀𝐂𝐓 𝐍𝐀𝐓𝐈𝐕𝐄 ✅ 𝐀𝐑𝐂𝐇𝐈𝐓𝐄𝐂𝐓𝐔𝐑𝐄: MobX, Redux ✅ 𝐒𝐓𝐎𝐑𝐀𝐆𝐄: RxDB, react-native-storage, react-native-sqlite, realm ✅ 𝐍𝐄𝐓𝐖𝐎𝐑𝐊𝐈𝐍𝐆: react-native-networking, react-native-simple-auth, react-native-background-upload, react-native-async-http ✅ 𝐈𝐌𝐀𝐆𝐄: react-native-safe-image, react-native-photoeditorsdk ✅ 𝐓𝐃𝐃: jest, mocha, chai, Enzyme, react-native-mock ✅ 𝐎𝐏𝐒: Bitrise, Fastlane
    Featured Skill Android SDK
    Atlassian Confluence
    Jira
    Fastlane
    iOS SDK
    iOS Development
    Swift
    Bluetooth
    Android App Development
    React Native
    Flutter
    Dart
    Kotlin
    JavaScript
  • $20 hourly
    • 5.0/5
    • (12 jobs)
    Full-time ASO Specialist - User Acquisition. Successful hyper casual game titles: Tiles Hop (over 900M installs global)
    Featured Skill Android SDK
    Conversion Rate Optimization
    Mobile App Development
    App Store Upload
    Android App
    iOS SDK
    Mobile App
    App Game Kit
    App Marketplace
    Mobile Game
    Mobile App Strategy
    App Development
    App Store Optimization
    Campaign Optimization
    Marketing Automation
  • $25 hourly
    • 5.0/5
    • (100 jobs)
    Hello! My name is Hoang, I am a Top Rated Mobile 🏆 with 100% Client Satisfaction⭐️ on Upwork. My Upwork profile is a testament to my ability to deliver products of excellent quality, punctually and without any hassle. For me, prioritizing client satisfaction is paramount. 🎯Why you should hire me? ✅Best price with hight-quality work ✅Dedicated to the job process ✅Client satisfaction ✅Quick response ✅Alway available for new updates and maintaining/bug fixes. 🎯 Areas of Expertise: ◉ Native Mobile App Development: Swift, Objective-C, Kotlin, Java ◉ Cross-platform Hybrid App Development: Flutter (Dart), ReactNative ◉ Web Backend: PHP, Node.js, Python, Laravel, WordPress, Express.js, Nest,js, Django ◉ Web Frontend: React.Js, HTML5, CSS3, BootStrap, JavaScript, jQuery ◉ AI, Chatbot, SDK, Livestreaming, Social networking ◉ API Integration: AWS API Gateway, AWS Lambda, Rest API, JSON, XML, PHP, Node.js, Python ◉ Database: SQLite, MySQL, Parse, MongoDB, AWS DynmoDB, Firebase real-time DB ◉ Social Integration: Facebook, Twitter, Youtube, Instagram, Snapchat, Tinder ◉ Chat Video/Photo/Text: XMPP, Socket, Firebase, Twilio ◉ Payment Gateway: Paypal, Braintree, Stripe Payment Gateway ◉ In-app Features: In-App Purchase: Advertisement, Push Notifications, GCM, Google Analytics ◉ Version Control Tools: Github, Bitbucket, Gitlab ◉ Google Map, Apple Map kit, Geolocation, GPS, Location Tracking 💌 Please, feel free to send the invitation to your job post or message me. I'm always looking forward to engaging opportunities!
    Featured Skill Android SDK
    iPad App Development
    Business with 1-9 Employees
    iOS SDK
    Android App Development
    iOS Development
    In-App Purchases
    In-App Advertising
    Java
    Swift
    Objective-C
  • $33 hourly
    • 0.0/5
    • (4 jobs)
    * 13+ years of experience in software development to deliver high quality, performance applications with Lead/Senior Engineer roles. * 11+ years of experience in Android development with Java, Kotlin, Android SDK, Jetpack Components * 5+ years of experience in IOS development with Objective-C, Swift, iOS SDK, UIKit * 1+ years of experience in Flutter development with Dart, Flutter SDK, BLOC, GetX, Provider * Experienced in working with architecture patterns: MVVM, MVP, MVC, Clean Architecture, BLOC * Experienced in working with REST API, Socket-IO, Bluetooth/NFC Connection, Mobile Persistent Storage, Mobile Testing, Mobile Security, CI/CD, Agile Development * Enthusiastic to learn new technologies and adopt new skill-sets
    Featured Skill Android SDK
    Model View ViewModel
    Mobile App
    UX & UI
    Database
    iOS SDK
    Android App Development
    iOS Development
    Swift
    Kotlin
    Java
    Objective-C
    Flutter
    iOS
    Android
  • $22 hourly
    • 4.8/5
    • (9 jobs)
    🥇 Expert-Vetted professional since 2021, representing the TOP-1% of talent on Upwork 🏆 Upwork Top Rated Talent 2017 - 2022 | 🛡 Top Rated PLUS 2020-2022 ⚡ 10+ years in the IT | ⭐️ 100% Successfully completed jobs With 10+ years of experience in Android, I have worked on many applications: MyFiles, Gallery, PhotoEditor, Dating App, Rail-Hailing, Car Wash, Food Delivery, In-app purchases, Payment gateway, Android Auto applications, etc. Strong knowledge of Android 3rd party libraries: Retrofit, Glide, ButterKnife, RxJava, GSON, Retrolambda, Dagger, Koin, Hilt, Jetpack Compose, etc. Good at defining clear Android architecture codebase with MVC, MVP, Clean Architecture, Architecture Component, MVVM, etc. Master data structure and algorithm. Have many experiences with optimization: improving app performance, and analyzing memory issues. Working on Java, Kotlin, Flutter, and C++ Professional working style with a highly responsive, careful, and on-time attitude. I believe that with my knowledge and experience, I can help you to build a great and successful application.
    Featured Skill Android SDK
    Smartphone
    Native App Development
    Push Notifications
    Flutter
    English to Vietnamese Translation
    API Integration
    Android
    Java
    Android App Development
    Kotlin
    Firebase
  • $20 hourly
    • 4.8/5
    • (4 jobs)
    3 years experience in mobile development (Visual Studio, Android Studio, Xcode, Xamarin Studio, Eclipse), understanding grasp clearly the database, HTTP Restful, in-app purchases(IAP), payment, mutil-languages, Google maps, GPS, Parse, image processing... Also have experienced in Xamarin Android-IOS-Win (MVVM-Cross), Xamarin Forms and NDK (C ++ for Android, IOS) ... Languages: C#, C/C++, Java, Swift, Objective C,... Database platforms: SQLite, Realm, MS SQL/Entity Framework, MySQL, MongoDB... Systems: Windows, OS X, Linux Cloud Platforms: Parse, Cloudbase, Firebase, AWS, MS Azure, ... Others: Crashlytics, Analytics, Stripe, Paypal, Checkout, Facebook, Twitter, Google Map API,...
    Featured Skill Android SDK
    Mobile Development Framework
    Windows Mobile
    Windows App Development
    iOS Development
    Android App Development
    Mobile App Development
    Android
    Xamarin
  • $30 hourly
    • 4.8/5
    • (48 jobs)
    I'm Top Rated Flutter, native Android developer, reverse engineer I have been developing high-quality native android apps for more than 7 years. Skills and technologies which I'm an expert at: — Reverse engineer, reverse engineering — Know very well Smali bytecode — Flutter/Dart — Bloc/Provider/Getx — Kotlin/Java — Android SDK — Git — MVP/MVVM/MVI — RxJava/Coroutines — Dagger2/Hilt — Retrofit/OkHttp — Sqlite/Room — Firebase — OOP/SOLID/DRY — Application modification for add, remove, modify functionalities — Bypass SSL pinning. Interception, modification and analysis of network traffic — Decompile and compile android apk
    Featured Skill Android SDK
    Android App
    Security Testing
    Ethical Hacking
    Assembly Language
    Reverse Engineering
    Dart
    Flutter
    Java
    Kotlin
    Android
    Android App Development
  • $30 hourly
    • 5.0/5
    • (11 jobs)
    I’m an experienced developer with a strong background in building robust, efficient solutions. My main focus is Android development, but I’m also skilled in Kotlin-backend, C, Bash, Python for scripting, automation tasks, building APIs and even servers from scratch. I have extensive experience working with Ubuntu, managing servers, maintaining legacy code and integrating 3d party APIs. I like working on complicated systems, debugging hard-to-track issues and interesting tasks with no ready solutions.
    Featured Skill Android SDK
    English
    Clean Architecture
    Android
    Kotlin
    Dagger 2
    Firebase
    RESTful Architecture
    Java
    Model View ViewModel
    Git
    Material Design
    Android Studio
    Android App Development
  • $12 hourly
    • 0.0/5
    • (1 job)
    I'm a developer with experience in building apps for small and medium sized businesses. Whether you’re trying to win work, list your services or even create a whole online store – I can help! I’m experienced in Android Kotlin, Java I’ll fully project manage your brief from start to finish Regular communication is really important to me, so let’s keep in touch!”
    Featured Skill Android SDK
    Clean Architecture
    Java
    Android
    Kotlin
  • $5 hourly
    • 5.0/5
    • (1 job)
    I'm a android developer but i want to find a other job in my freetime such as writing or content, editor, vv
    Featured Skill Android SDK
    Android Smartphone
    Android Studio
    Android App Development
    Kotlin
    Java
    Android
  • $6 hourly
    • 0.0/5
    • (0 jobs)
    Mobile Developer with more than 3+ years of experience in Android, iOS, and Flutter Hi there! I'm a committed and adaptable mobile developer with over two years of practical expertise in producing excellent, user-focused mobile apps. My knowledge of iOS, Android, and Flutter enables me to create native, cross-platform applications that meet industry standards. What I Provide: Android Development: With my proficiency in Kotlin and Java, I create solid Android applications that prioritize user experience and performance. iOS Development: With my proficiency in Swift, I create slick, responsive iOS apps that adhere to Apple's design specifications. Flutter Development: As a cross-platform guru, I use Flutter to build applications that save time and money without sacrificing quality by providing a uniform user experience on both Android and iOS.
    Featured Skill Android SDK
    Swift
    Coroutine
    Mobile App
    Android App Development
    Dart
    Kotlin
    Firebase
    Flutter
    Android
  • $10 hourly
    • 0.0/5
    • (2 jobs)
    📱 Android | Kotlin | Java | Jetpack Compose | Kotlin-Multiplatform| Flutter | WearOS | AndroidTV | 🚀 AI | ChatGPT | 💻 Firebase I'm an Android developer with a knack for crafting innovative solutions. I specialize in native Android application programming with a strong focus on SCRUM/Agile workflow. 
 My expertise in mobile development includes:
 * Programming Languages: Java, Kotlin * Architectural Patterns: MVVM, MVP, MVC * Design Patterns, Custom Controls, and REST API integration * Material Design, Mobile UI/UX, and Firebase integration (AdMob, Analytics, A/B testing, etc.) * Jetpack Compose, Jetpack Navigation * Firebase Realtime Database and Storage * Android SDK, NDK, Open Source, Support Libraries * Reactive Programming with RxJava and RxAndroid * Dependency Injection using Dagger, Kodein, and Hilt * Databases: SQLite, Room, Realm, Page * Network Libraries: Retrofit, OkHttp, Volley, ktor * Image Loading Libraries: Picasso, Glide * Crash Reporting and Analytics Tools: Crashlytics, Firebase, Fabric, LeakCanary, Timber * Other Libraries: Gson, AutoValue, JodaTime, AndroidJob, Google Services * Sockets/SignalR * Kiosk Mode * SonarQube code coverage * Kotlin-Multiplatform (One POC)
 * Wear OS & Smartwatch development Please feel free to reach out to me with any Android-related questions or projects. I would be pleased to help you bring your ideas to life.
    Featured Skill Android SDK
    User Authentication
    Map Integration
    Push Notifications
    Dart
    Flutter
    Git
    RESTful API
    Kotlin
    Firebase Realtime Database
    API Integration
    Java
  • $15 hourly
    • 0.0/5
    • (0 jobs)
    💪𝑩𝒓𝒊𝒏𝒈𝒊𝒏𝒈 𝒚𝒐𝒖 𝒕𝒉𝒆 𝒃𝒆𝒔𝒕 𝒑𝒓𝒐𝒅𝒖𝒄𝒕𝒔 I'm developing android mobile and automative apps since 2021 on a daily basis. I improve my skills every day in order to make the development process qualitative and faster. 𝑴𝒚 𝒔𝒌𝒊𝒍𝒍𝒔: • Java / Kotlin; • Android SDK; • Android Jetpack (Compose, Room, Navigation,, Lifecycle); • Google AppEngine (Google Cloud Endpoints / Servlets); • Databases: SQL / Room Persistence, Realm; • Google API's (Maps, Drive, Tasks, Places); • Firebase Cloud Messaging(Android / Java Server), Database, Remote Config; • Google Cloud Storage / Database; • Material Design; • REST/JSON/XML; • Retrofit 2, RxJava, Dagger 2, Koin; • MVVM, MVP; • Git; • Gradle / Maven. Also, I can help you create technical and business requirements for the Android application if you don't fully understand which features you want. If you need any further information, please do not hesitate to contact me.
    Featured Skill Android SDK
    Clean Architecture
    Model View ViewModel
    Git
    JetPack
    Kotlin
    Java
    Mobile App
    Mobile App Development
    App Development
    Android App Development
    Android
  • $35 hourly
    • 0.0/5
    • (0 jobs)
    Intermediate Android Developer I’m an Android developer experienced in building mobile applications for startups and growing businesses. Whether you need a brand-new app, want to improve your existing product, or integrate powerful APIs, I can help. Skilled in Kotlin, Java, Jetpack Compose, MVVM, Retrofit, Hilt, Firebase Full-cycle app development: from UI/UX design to Play Store deployment Committed to clean code, performance optimization, and maintainability Regular updates and clear communication to keep your project on track Let’s bring your app idea to life. Reach out and let’s build something great together!
    Featured Skill Android SDK
    Mobile App
    App Development
    Android Tablet
    Android Smartphone
    Android Debug Bridge
    Android Studio
    Android App
    Android App Development
    Android
  • $5 hourly
    • 0.0/5
    • (0 jobs)
    I am a highly skilled and experienced Flutter app developer with a strong passion for creating innovative and user-friendly mobile applications. With a deep understanding of Flutter's architecture and principles, I am proficient in developing cross-platform apps for both iOS and Android.
    Featured Skill Android SDK
    Clean Architecture
    GraphQL
    Audio Editing
    FFmpeg
    Agora.io
    Google Ads
    App Store
    Android
    Kotlin
    Swift
    iOS SDK
    iOS
    Flutter
    Google APIs
  • $10 hourly
    • 0.0/5
    • (0 jobs)
    Hi, Are looking best experienced mobile app and website developer and designer? You're in the right place. 𝑾𝒉𝒂𝒕 𝑰 𝒄𝒂𝒏 𝒅𝒐? ✔ App & Website Design ✔ Website Development ✔Android App Development ✔ IOS App Development ✔ Native App Development ✔ Hybrid App Development ✔ UI/UX Designing ✔ Deploy the app in the App Store & Play Store ✔ Bug Fixing ✔ Back-end API integration 𝙈𝙮 𝙀𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚𝙨? ⭐️ Languages & Frameworks: Java, Kotlin, Android SDK, Android Jetpack (Room, Navigation, WorkManager, Lifecycle), Flutter, HTML, CSS, Javascript, php, Wordpress, Reactjs ⭐️ Backend & Cloud: Google AppEngine (Cloud Endpoints, Servlets), Firebase (FCM, Database, Remote Config), Google Cloud Storage ⭐️ Databases: SQL, Room Persistence, Realm ⭐️ Google APIs: Maps, Drive, Tasks, Places ⭐️ Networking & Architecture: REST, JSON, XML, Retrofit 2, RxJava, Dagger 2, Koin, Dio ⭐️ Design & UX: Material Design ⭐️ Architectural Patterns: MVVM, MVP, Clean Architecture, BloC ⭐️ Version Control & Build Tools: Git, Gradle, Maven 📩 Let's build something amazing together! Feel free to contact me to discuss your project.
    Featured Skill Android SDK
    Material Design
    Asynchronous I/O
    SQLite
    Google Play
    RESTful API
    Google APIs
    Firebase
    Model View ViewModel
    Mobile UI Design
    User Experience Design
    Android App Development
    Kotlin
    Java
    Android
  • $20 hourly
    • 0.0/5
    • (0 jobs)
    Hi, I’m Hanz-coding! • I’m a Senior Android Native Developer with a deep passion for building high-quality, scalable, and user-friendly Android applications. Over the years, I’ve honed my skills in various programming languages, frameworks, and tools that enable me to create robust mobile applications. My primary expertise lies in Kotlin, though I have extensive experience working with Java in Android development as well. I take pride in writing clean, maintainable code, and I always strive to implement best practices to ensure the performance and scalability of my apps. My Experience: • I’ve been working in Android development for several years, with a solid foundation in both Java and Kotlin. Initially, I started developing Android applications with Java, gaining in-depth knowledge of the Android SDK, UI design, and interaction with various Android components. Over time, I transitioned to Kotlin, which significantly improved my development efficiency and allowed me to take advantage of modern language features like null safety, extension functions, and coroutines. Here’s an overview of my journey and expertise: • Java and Kotlin: With a strong background in Java, I quickly adopted Kotlin as my language of choice for Android development. I’ve worked extensively with Kotlin features such as lambdas, data classes, and functional programming concepts. Kotlin has made my development process smoother, and I’ve built several production-grade applications with it. • Android Frameworks and SDK: My experience spans the full Android development lifecycle, from UI design to backend integration. I’ve worked with Android frameworks like Jetpack, LiveData, ViewModels, and Room Database. I’m also familiar with Android Architecture Components like MVVM and MVP, ensuring that I maintain clean and modular code. • UI/UX Design: I have strong experience in designing intuitive and responsive UIs using XML and Jetpack Compose, Android’s modern declarative UI toolkit. I aim to create user-friendly interfaces that work seamlessly across various screen sizes and orientations. • Networking and APIs: I’m proficient in integrating RESTful APIs, working with Retrofit, Volley, and Kotlin’s Ktor for networking. I also ensure the security of user data through proper encryption and authentication mechanisms. • Databases: I have worked extensively with local databases like Room, SQLite, and Realm, optimizing data storage and retrieval to ensure fast and smooth user experiences. • Testing: I’m committed to writing testable code and ensuring the quality of the applications I build. I use tools like JUnit, Espresso, and Mockito for unit and UI testing. Additionally, I follow TDD (Test-Driven Development) to make sure the code works as expected and to catch potential issues early in the development process. • Debugging & Maintenance: Maintaining and debugging apps is a crucial part of my workflow. I utilize Android Studio’s powerful debugging tools and have extensive experience with tools like Logcat, Firebase Crashlytics, and Stetho. I ensure that apps are optimized for performance, with a focus on minimizing crashes and improving memory management. • Version Control: I have extensive experience with Git and GitHub for version control and collaboration. I follow best practices such as creating feature branches, pull requests, and code reviews to maintain code quality. • CI/CD & Automation: I leverage Jenkins, GitLab CI, and GitHub Actions to automate the build and deployment process. This helps me ensure that code is thoroughly tested before deployment and that new releases are delivered smoothly. Additional Technologies & Tools I Use: • Dependency Injection: I’m experienced with Dagger 2 and Hilt, making my codebase more modular and easier to test. • Coroutines: I use Kotlin coroutines for managing background tasks and asynchronous operations in a clean and efficient way. • Firebase: I’ve worked with several Firebase services, including Firestore, Firebase Authentication, Firebase Cloud Messaging, and Firebase Analytics, to enhance app functionality. • Push Notifications: I have integrated Firebase Cloud Messaging (FCM) and OneSignal to handle push notifications efficiently. • Google Play Services: I’ve worked with various Google APIs, including Google Maps, Google Drive, Google Sign-In, and Play Billing, to enrich the user experience. Let’s Connect! • Feel free to explore my repositories, check out my code, and ask questions if you’re interested in collaborating. I believe in continuous learning and collaboration, so if you’re working on something interesting or want to share feedback, I’d love to connect.
    Featured Skill Android SDK
    Java
    Android Debug Bridge
    Mobile App
    App Development
    Mobile App Development
    Firebase
    Git
    Android
    Android Room Persistence
    Android App
    Android Studio
    Kotlin
    Android App Development
  • $15 hourly
    • 0.0/5
    • (0 jobs)
    🎯 Android Developer with a proven track record of building fast, stable, user-friendly apps — from first line of code to Play Store launch. 💬 Let’s bring your ideas to life — quick response guaranteed! 💡 Whether you need: • A brand-new app built from scratch • A feature-rich upgrade to an existing product • Bug fixes, performance improvements, or UI polish → I can help — with speed, precision, and a focus on quality. 🔥 What sets me apart: • Proven success with apps reaching 1.5k+ active users in just first month • Strong debugging skills (UI, network, SDKs, you name it) • Clean, maintainable code that is easy to make out • Excellent communicator — fast response, reliability, and transparency 📩 Need a developer who delivers high-quality results — without micromanagement? Let’s talk! Send me a message and get a free 15 minute introduction call, where i can answer any of your questions!
    Featured Skill Android SDK
    Mobile App Bug Fix
    UX & UI
    Mobile UI Design
    Dependency Injection Framework
    REST API
    SQLite
    Firebase
    Android App
    Android
    Java
    Kotlin
    Mobile App Development
    App Development
    Android App Development
  • $25 hourly
    • 0.0/5
    • (0 jobs)
    Senior Android developer with 10+ years and live apps on Play Store. Skilled in using Photoshop and Illustrator for design work.
    Featured Skill Android SDK
    2D Illustration
    Adobe Photoshop
    Android Tablet
    Android App
    Android UI Design
    Android Smartphone
    Android Studio
    Android App Development
    Android
  • $5 hourly
    • 0.0/5
    • (0 jobs)
    WORK OBJECTIVES Short-term To gain hands-on experience in software development, especially in Android Development Long-term To become a proficient software developer and continuously improve my technical skills. To achieve professional certification in relevant areas and further my career in the IT industry
    Featured Skill Android SDK
    Android Studio
    Firebase
    Java
    Kotlin
    XML
    JetPack
    Android App Development
    Android
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