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Rating is 4.8 out of 5.
4.8/5
based on 401 client reviews
  2. Development & IT Talent
  3. Mobile App Developers
  4. (Current) Android SDK Specialists
  • $120 hourly

    • 4.9/5
    • (10 jobs)
    10 years of experience working on native Android applications for high profile clients and businesses. 100% Job Success | 11,000+ Hours | Top Rated Plus | 5 Star Reviews Exclusively From planning, developing and publishing to maintaining and supporting high quality Android applications. I hope you see the experience displayed in my profile as an indication of my reliability. ✔︎ Constantly updating my knowledge with the most recent design patterns and code conventions; ✔︎ The delivery of a product that respects the highest standards of usability, performance and appearance is guaranteed; ✔︎ Great cost-benefit by delivering faster and higher quality products than the average; ✔︎ Flexible availability to always meet the client's needs. Vast experience managing development teams located in different places around the world. As an example, I've been managing a team that averaged 7 developers located in different countries, such as Canada, Ukraine, Pakistan, India and Brazil. ✅ Mobile Development Leader; ✅ Native Development; ✅ Kotlin and Java Expert; ✅ Clean code, DRY and KISS principles; ✅ Unit and automated testing; ✅ Well documented code; ✅ UI/UX Best Practices; ✅ NoSQL and SQL Databases; ✅ API Integration; ✅ Web Services Development. MySQL, SQLite, PostgreSQL, SQL Server, Firebase, Java, Kotlin, Android Studio, Android SDK, Android NDK, Device Owner, Play Store...
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Java
    PHP
    SQLite
    Firebase Cloud Firestore
    Material Design
    REST
    MySQL Programming
    Android
  • $60 hourly

    • 4.9/5
    • (186 jobs)
    ** I am what I am because of what we all are. ** I am a self-motivated, hard-working, and open-source contributor. My GitHub handle is *amsurana* Mobile experience [since 2009] * Worked on Qualcomm, Mediatek, Amlogic, Rockchip based devices. * Porting and Writing Device Drivers * Customizing Android Kernel * Android Automotive OS Expert - Projects and Consulting. Ported Automotive OS to RPI. * Android Firmware development for all kind of Devices [PCBA, Phones, Tablet, TV, Accessories] * Android SDK/NDK * Android Wearable * Custom ROM - I have deep experience in customizing Android and modifying the entire OS experience as per the requirements. Some of the customizations I have done - changing boot animations, modifying shutdown screen, removing bloatware, developing system-level apps, making a tablet a Kiosk (without permissions), Bluetooth stack modification, Carrier config updates, and many more. * Secure OS - Make your Android ultra-secure. * OTA for A/B Seamless or Non-AB devices * Secure Android OS using AVB Tool * MDM, EMM, Mobile Device Management - If you plan to use MDM or develop your MDM, do reach out to me. I have experience in Airwatch, SOTI, ScaleFusion, Gears42, and FieldX. Special Skills: Z-wave, Zigbee, IoT, Amazon Alexa, Google Home Assistant, Smarthome, IFTTT Keywords - Android, Web, Social Media Integration, Java, J2EE, Bluetooth, BlueZ, DBus, AOSP, Custom ROM, Docker, Play Framework, Linux, AWS, EC2, MongoDB, Eclipse, Cyanogen mod, LineageOS Android TV, Android OS, Custom ROM, Tizen, LinegaeOS, RaspberryPi, OrangePi, Khadas VIM, HiKey, Amlogic, Rockchip, Airwatch, SOTI, MDM, EMM, Pentest, Penetration Testing, Qualcomm, Mediatek
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Raspberry Pi
    Mobile App Development
    Embedded System
    Internet of Things
    Firmware Programming
    Kotlin
    Firmware
    Mobile Device Management
    Android NDK
    Android App Development
    Android
    Java
    AOSP
  • $60 hourly

    • 4.8/5
    • (11 jobs)
    Hello there, I'm Gaurav ✅ *Android and Kotlin Expert* ✅ *Developed and delivered apps with an overall rating of 4.8+ rating. and thousands of downloads* ✅ *Great communicator* ✅ *Adaptable to any time zone* ✅ *Fullstack enthusiast* I have been developing native Android apps for more than 7 years now. And have worked on different stages of mobile development - developing, architecting and designing apps from scratch, migrating existing apps with the old codebase to use the modern android development approach and lastly updating popular apps by adding new features to the same in a modular and scalable way. Specialize in: * Creating timely deliverables * Architecture implementation * Third-party library/API integration * Ability to convert mockups to a functional app with attention to detail Skills : Android, Java, Kotlin, MVVM, Android architecture components, Reactive programming (RxJava/RxKotlin), Dependency Injection (Koin), Backend API integration (Retrofit2/Okhttp), Node.js, Express, Mongo, React.js, Php/MySql, Third-party API integration (Twilio, Stripe, Social Apps, etc), Material Design, Git. Looking forward to working with you. Regards Gaurav Sarma
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    ChatGPT
    Chat & Messaging Software
    A/B Testing
    Flutter
    Android App Development
    Push Notifications
    Mobile App Development
    Map Integration
    Material Design
    Android Studio
    Android
    Java
    Firebase
    Kotlin
  • $25 hourly

    • 5.0/5
    • (68 jobs)
    I'm a senior developer with 5+ years of experience in developing apps on iOS and Android. And now I'm very happy to see my profile is TOP RATED PLUS on Upwork. I have created many apps with high quality and affordable prices. Over the past 4 years, I have satisfied all of my clients when making their ideas come to life with really great apps. Please review my portfolio and client's feedback to see the testimonials. My experience with iOS and Android development: - Swift / Objective-C - Java - SDK and API add for the native app - Social Networking app - UIKit, CoreFoundation, CoreData, iAd, MapKit, CoreLocation, CoreGraphics, StoreKit - Ads - Payment gateway and In-App purchase - Location tracking - Image/Video processing - Other frameworks I was a creative person before I became a developer. As such, I have an eye for design, mobile analytics and QT/Testing. Hope you will contact me for your project! Thanks
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Business with 1-9 Employees
    In-App Advertising
    In-App Purchases
    UIKit
    iOS SDK
    Java
    Swift
    Objective-C
    iPad App Development
    iPhone App Development
    Android App Development
    iOS Development
  • $30 hourly

    • 4.9/5
    • (25 jobs)
    5+ Yr. | iOS | Android | React Native | Flutter | Node.js | iPhone | iPad | MySQL | REST API . Welcome to my Profile..... My name is Hiteshkumar Kachariya. I am a highly proficient mobile application developer with over 5+ years of experience. I am well versed with latest technologies like React Native, Flutter, Swift, Objective C, Android and Kotlin. Why you hire me? I am highly-skilled mobile app developer and have done many projects with client satisfaction. You can check my recent client reviews...... "Hitesh did an excellent job for me to scrape data, design and populate them into a database, and to create queries and reports to view the data. Highly recommented." "Hitesh is a nice person and helped us at every stage and gave us ideas also to implement in our app. Recommended" "Hitesh knows his codes very well. Because of this, he was able to complete the job quickly and easily. Highly recommended if you need a knowledgeable coder. You'll get your money worth" Want to know more---- ============= Technologies that I'm working on======================== -React native -Flutter -ReactJS -iOS (Swift, Objective C) -NodeJS -Android (Java, Kotlin) ============= My skills that fits me for your project====================== - Highly proficient in Programming languages such as C, Swift, PHP, HTML5, CSS3, MySQL, jQuery, AJAX - Excellent organisational abilities - GitHub and Firebase experience - Keep abreast with technological and media advancements and trends The ability to learn quickly - The capacity to interpret and adhere to technical plans - Problem-solving abilities - Expert in the Swift programming language with experience in UX design - Excellent communication abilities - Extensive experience designing hybrid applications - Excellent analytical abilities and a positive problem-solving approach - Extensive project management experience, ranging from project scoping to application launch. ============= My Experience with the projects that I have done ============ - Proven work experience as a Mobile developer - Third-party SDK integration, social sharing, payment gateways on web and mobile - Experience with third-party libraries and APIs - Analytic integration, custom analytic development - Mobile apps development - Video-Audio calling with Chat messaging As a professional app developer, I will give you full support until your final satisfaction. Let's connects and move ahead with your project......!!!!!!!
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Native App Development
    Node.js
    iOS SDK
    Swift
    Android
    iOS
    React
    React Native
    Flutter
  • $40 hourly

    • 4.9/5
    • (98 jobs)
    From development to growth, I design mobile apps for success on Google Play and the App Store. ✔︎ 5-star rated | 100% Job Success | 9+ years experience ✔︎ Android apps since 2014, and iOS since 2018, which is shown in my profile history. ✔︎ Bachelor's degree in software engineering ✔︎ 63 happy Upwork clients, including the IBM, Los Angeles Film Festival ✔︎ Applying the most modern architecture and tools for product development and techniques to boost user satisfaction. Apps that I worked on are used by 5M+ people I manage complex aspects of the development process, including support for legacy systems, optimization of code architecture, and leadership of both myself and my team. I organize and streamline development workflows using project management tools such as Trello, ensuring that clients maintain full control over the development process. ✅ Android: Java, Kotlin, MVVM, RxJava, Dagger ✅ iOS: Swift, Objective C, MVP, RxSwift ✅ Cross-platform: React Native, Flutter ✅ Git: Parallel workflow, tags, release management ✅ Design: wireframes, icons, UX planning, UI creation ❇️ GitHub - github.com/AlexSheiko - I'm working with big and small companies, as well as individual clients. - I'm comfortable signing an NDA. - Prefer long-term collaboration. - Ready to work 30-40 hours per week. To begin our collaboration, we typically start with a video call to discuss project details and implementation. Clients can then request an estimate and expect daily updates on the progress of the project. Have a challenging idea in mind? Don't hesitate to reach out - together, let's bring it to life!
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Mobile App
    Hybrid App
    Flutter
    Mobile App Development
    Firebase
    Android
    React Native
    Android App Development
    Hybrid App Development
    iOS
  • $35 hourly

    • 5.0/5
    • (4 jobs)
    Android/iOS Warrior. Custom UI Expert. I'm paying very strong attention to app architecture and UI quality - my works are quick to respond, have beautiful look and awesome support. Have a high level of self-organization. Up-to-date with latest Development trends, techniques, and technologies. Worked with Startups and small/medium business​. Skills

: • Android development • iOS development • MVP & Prototyping • Social media development Technical Skills: • Java/Kotlin/Swift languages • Firebase services • Geolocation, Google Maps expert • App monetization​ Do you have an interesting project? — Let’s do it amazing together. keywords ui, ux, user interface, user experience, mobile development, app development, ios development, material design, prototyping, layout, animation, android development, mvp, google maps, monetization, geolocation, firebase, social media, android studio, xcode.
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Java
    Android App Development
    Google Maps API
    Android
    iOS
    Swift
    Firebase
    Chat & Messaging Software
    Payment Functionality
    Mobile App Development
    iOS Development
  • $65 hourly

    • 5.0/5
    • (7 jobs)
    I am a senior software engineer from Manchester, UK with over 8 years experience mainly in mobile development, with a vast background of experience to draw on from small agile startups to the biggest multinational companies in the world in a wide variety of markets such as education, oil pipelines, fashion and motoring, making me comfortable and effective in a variety of work environments on teams large and small. Today the apps that I have released on the play store have millions of daily users. I pride myself In being able to write clean and efficient code using SOLID principles to deliver well working and great looking mobile apps on time, transforming business ideas into workable concepts and deliverable products. In my time as a mobile developer I have had experience with a variety of tools and technology. To point out a few. o Google play services APIs Including maps, Activity recognition, Android wear and android auto o Best practice android libraries including but not exclusively, Coroutines, Dagger 2.0, HILT, Robolectric, Realm, RX Java, and android architecture components o CI/CD services including Jenkins, Bitrise and Circle CI o Analytics services including flurry, firebase, branch and appsee o Android(Java, Kotlin) , IOS(Swift), Java spring, HTML, CSS, jQuery and c++ o Jetpack compose o Kotlin native to build multi platform SDK's o Flutter
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Mobile App Development
    In-App Purchases
    Smartphone
    Kotlin
    Spring Framework
    Java
    jQuery
    Bootstrap
    CSS
    HTML
    PHP
    Android App Development
    Android
  • $63 hourly

    • 4.9/5
    • (51 jobs)
    Ever felt swamped in the vast sea of mobile app developers? It's frustrating when deliveries are late, functionalities go missing, and codes resemble intricate mazes. Trust me, you aren't the only one navigating these waters. Many collaborators have shared stories of past stumbles. But here's a ray of hope: we can steer towards a brighter horizon. With a decade under my belt and a heart full of passion, I aim to rewrite these narratives. Some Milestones: ⭐ Spearheaded development for Fitbit, which impressively raised $66M. ⭐ Had the honor of collaborating with Pure, Powerdot, and Xsat, all of which celebrated significant investment milestones. ⭐ Steered numerous projects using cutting-edge technologies, simplifying and accelerating the development trajectory. ⭐ Seamlessly merged the principles of Agile & Scrum, fostering flexibility and quick turnarounds. Let me introduce myself I'm Sergey, possibly your next Lead Android/iOS Developer. The past decade has been an exhilarating roller-coaster, packed with invaluable experiences, challenges, and a string of successful projects. I've lent my expertise to startups, and industry giants, helping them manifest their mobile app dreams. Why do they choose me? ✅ A relentless drive to craft projects that stand out and garner rave reviews. ✅ Undying support post-project because our relationship isn't just transactional. ✅ A rich toolkit encompassing Kotlin, Swift, and trailblazing frameworks like Jetpack Compose & SwiftUI. ✅ Agility in approach with a deep-rooted foundation in OOP & Functional programming styles. My Array of Specialties: 📱 Leading mobile development with Kotlin, Java, Swift 🚀 Cross-platform mobile app development using Flutter, React Native 🌐 Backend prowess with Firebase and Node.js. 💻 Architectural excellence with MVVM, MVP, MVI, and VIPER. 🔄 Transparent updates and effortless communication, ensuring you're always in the loop. In a nutshell? I value transparency, efficiency, and making a tangible difference. It's not just about crafting any mobile app, but sculpting one that resonates, scales, and surpasses the norm. Ready to embark on an extraordinary journey? Let's unite over a virtual coffee and set the wheels in motion for your next mobile marvel!
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Machine Learning
    VPN
    Wear OS
    Smartphone
    Mobile App
    iOS
    Android
    iPad App Development
    Kotlin
    Android NDK
    Java
    Android App Development
    Swift
    iOS Development
  • $35 hourly

    • 5.0/5
    • (8 jobs)
    Hi, I am Eduard from the tiny country Armenia, and programming is my passion. I've been doing Android development for 6+ years. Also, I have experience in backend development and I am familiar with machine learning. During my career, I've developed a wide variety of mobile apps healthcare, insurance, fitness, security, fundraising, photo editing, traveling, asset tracking, etc. I am passionate about best practices and project quality and creating maintainable, scalable, clean, and testable code. My Skills: - Native Android Apps (Java / Kotlin ) - Mobile user interfaces ( UI/UIX design, Material Design. Material You design ) - Clean Code ( Clean Architecture / MVVM / MVI ) - SOLID - Coroutines - RxJava - Dependency Injection ( Dagger / Koin ) - Caching ( SQLite / RoomDB / Realm ) - Testing ( JUnit Tests / Mockito / Roboelectric ) - Fragments API ( also navigation components ) - Google fit SDK - Retrofit / Ktor - VSC: Git - Jira, Trello Hands-on Experience: - Firebase - Push Notification - Database management (Relational databases / NoSQL ) - Barcode / QR code readers/generator - Firebase Cloud Messaging - NFC - GPS & Location Services - Payment processors (Stripe / PayPal / Braintree ) - In-App Search - Map integration ( Google Map ) - Heroku
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    SQLite
    Clean Architecture
    Android
    Object-Oriented Programming
    Software Architecture & Design
    RESTful Architecture
    RESTful API
    Android App Development
    Kotlin
    Mobile App Development
    Reactive Programming
    Java
    C++
  • $25 hourly

    • 4.7/5
    • (10 jobs)
    🚀 THE FLUTTER DEVELOPER YOU NEED! 🚀 Looking for a top-tier Flutter developer to take your project to soaring heights? Look no further! I'm the ✅ HIGHEST EARNING Flutter Freelancer on Upwork, holding the prestigious Top Rated Plus badge (putting me in the Top 1% of all freelancers). Throughout my career, I have had the privilege to collaborate with 🌟High Profile Clients/Organizations🌟, delivering exceptional solutions and driving their success to new heights. With a proven track record, I bring a wealth of experience and expertise to the table. Why choose me? Well, if you're looking for someone who is just another run-of-the-mill developer, I'm not your guy. I don't just solve problems; I'm a passionate problem solver who happens to excel at coding. My approach is like that of a Swiss army knife, adept at handling complex challenges from different angles. At this point, I am also grooming my solid team of flutter ninjas - We do the IMPOSSIBLE at the BEST RATES, giving the BEST EXPERIENCE to our clients. Hire me, and I'd ensure you see what the worth of a world class flutter development is like, for every dollar that you spend.
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Swift
    Firebase
    App Design
    iOS SDK
    App Development
    Kotlin
    Flutter Stack
    Dart
    Mobile App Development
    Flutter
    UI/UX Prototyping
  • $80 hourly

    • 5.0/5
    • (3 jobs)
    As a mobile app/SDK development contractor/consultant with 10 years of experience, I specialize in native app development for both Android and iOS using Kotlin and Swift. I have a thorough understanding of the mobile app development lifecycle, including UI/UX design and app architecture. I work with a dedicated mobile team to deliver high-quality mobile apps and SDKs that meet your business requirements. I have extensive experience in integrating third-party APIs and libraries, as well as implementing complex features such as push notifications, in-app purchases, and location-based services. On the other hand, I have experience with Kotlin Multiplatform Mobile (KMM), a new technology that allows developers to write shared business logic for mobile apps using Kotlin. With KMM, you can significantly reduce the time and cost of app development, while still delivering high-quality, native mobile apps for both Android and iOS platforms. The benefits of using KMM include faster development cycles, reduced code duplication, and easier maintenance. With KMM, you can write shared code for features like data models, networking, and business logic, while still using native UI components and platform-specific APIs. This approach allows you to deliver a seamless user experience on both platforms, without compromising on performance or quality. In addition to mobile app development, I also provide consulting services, including technical guidance, project management, and ongoing support. My goal is to help you achieve success with your mobile app project, from concept to launch and beyond.
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Native App Development
    Mobile UI Design
    Mobile App Design
    Mobile Apps
    Minimum Viable Product
    UI/UX Prototyping
    Swift
    Android App Development
    iOS Development
    iOS SDK
    iOS
    Kotlin
    Android
    Mobile App Development
  • $40 hourly

    • 5.0/5
    • (13 jobs)
    Throw anything to me of Android. I am an expert Android developer specialized in Android Native Apps with experience of more than 6 years. I am experienced with various categories and aspects of android app development including *Deep specialization in Android Things application and interactive applications and a lot more like - Google Maps - GPS Location - Reports Generation and conversion (Word, Excel, PDF, XML...) - Chat & Messaging AI Bots, Push Notifications - UI/UX - Databases (Firebase, Apache...) - Machine Learning (TensorFlow) - Android automation App - Ads Integration - REST API's - Social Media Integrations My success is only in giving you a work product with the highest international quality and complete support until you feel satisfied
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Point of Sale & Payment Systems
    Android Things
    Camera
    Flutter
    Image Processing
    In-App Advertising
    Reverse Engineering
    Kotlin
    Artificial Intelligence
    UIKit
    Mobile App Development
    Mobile App
    Android
    Android Studio
    Android NDK
    Linux
    Android App Development
    Java
  • $20 hourly

    • 4.9/5
    • (24 jobs)
    ✅ Top Rated ✅ 100% Job Success ✅ 9+ Years of Experience Experienced Android and Flutter developer with over 10 years of experience in freelance projects. Proven track record of delivering exceptional mobile applications for clients across various industries. Seeking opportunities to leverage my expertise in Android and Flutter app development to contribute to innovative projects. Key Skills: ------------ ◘ Android App Development (Java and Kotlin) ◘ Flutter App Development ◘ UI/UX Design ◘ RESTful API Integration ◘ Firebase ◘ SQLite ◘ Third-party Library Integration ◘ Version Control (Git) ◘ Debugging and Performance Optimization ◘ Agile/Scrum Methodology ◘ Problem-solving and Troubleshooting ◘ Android Jetpack Components: ○ • LiveData ○ • ViewModel ○ • Room Database ○ • Navigation ○ • Data Binding ○ • WorkManager ○ • Paging ○ • View Binding ○ • Hilt (Dagger) ◘ Machine Learning and Computer Vision: ○ • Google ML Kit (Text Recognition, Image Labeling, Face Detection) ○ • OpenCV (Computer Vision, Image Processing) ◘ AWS Mobile Backend Integration: ○ • AWS Amplify ○ • AWS Lambda ○ • AWS API Gateway ○ • AWS DynamoDB ○ • AWS Cognito (Authentication and User Management) ○ • AWS S3 (Storage)
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Product Management
    Web Design
    Core Java
    Web Service
    OpenCV
    Firebase Realtime Database
    Flutter
    Firebase
    SQLite
    iOS Development
    Android
    Firebase Cloud Firestore
    Android App Development
    Kotlin
  • $70 hourly

    • 4.7/5
    • (33 jobs)
    Kamran is a full stack software engineer who is passionate about his work and has highest focus on the quality of the work. He uses Typescript as programming language for React-Native, React JS & Node JS, uses Swift for native iOS and kotlin for native android developments. So far kamran has successfully worked with following features and technologies for react-native mobile apps, reactJs web apps and corresponding NodeJS backend: - Realtime chat (audio, video, text and image) using socketIO and twilio SDK - Realtime location tracking and directions using google maps and mapwize SDK - BLE Bluetooth connectivity and data transfer using characteristics read & writes - React Native SDKs, with Typescript, Swift and Kotlin, writing (3 SDks created which are being used by organizations) - User profile management - state management using Redux - API calls and other side effects management using Redux-sagas - react-navigation, react-native-navigation, react-native-router-flux - Publish mobile apps on Google playstore & Apple’s Appstore Both manually and using Fastlane - Google Cloud, Firebase, Firestore, Cloud Functions - Xcode & Android Studio - Invision, Figma, Zeplin, sketch, Adobe XD design tools and many more. Thank you in advance for your time and consideration, I look forward to working with you soon.
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    BigQuery
    RESTful API
    Video Stream
    Socket.io
    Google Cloud Platform
    Google Maps API
    Material Design
    Unit Testing
    Jest
    Android App Development
    React
    Node.js
    TypeScript
    JavaScript
    React Native
    Chat & Messaging Software
  • $12 hourly

    • 5.0/5
    • (3 jobs)
    i am able to obtain a challenging position in a high-quality Engineering Environment where my resourceful experience and academic skills will add value to organizational operations. Analytical and detail oriented Android app developer professional with stellar communication skills. Adept at bringing all team members together to reach a common goal on time and under budget. Conceptualizing app solutions with the latest technology, design theory, and a large dose of creativity. Committed to viable and easily functional app solutions for clients.
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Android Room Persistence
    IPTV
    Kotlin
    Dagger 2
    JSON
    Model View ViewModel
    Map Integration
    RESTful Architecture
    Java
    Retrofit
    Business with 1-9 Employees
    Firebase
    TV Set
    Android App Development
    XML
  • $10 hourly

    • 4.6/5
    • (22 jobs)
    Hello there, I am an experienced software engineer with over 8 years of full-stack development experience. My primary focus is on web and mobile application development, with expertise in React/React Native, Node.js, Firebase, PHP, and CodeIgniter. Throughout my career, I have worked on a wide range of projects for multiple industries, developing both enterprise-grade and consumer-facing applications. I have a strong understanding of both front-end and back-end development, which enables me to handle any project with ease. In my work, I utilize modern tools and technologies such as ReactJS, React Native, NodeJS, ElectronJS, HTML5, CSS3, Bootstrap, PHP/CI/YII, Material UI, Firebase, MySQL, MongoDB, and RESTful APIs. I am confident that I can transform your ideas into intuitive and engaging web and mobile applications. Thank you for taking the time to visit my profile, and I look forward to the opportunity to work with you. Thank you,
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Bug Fix
    Twilio API
    API Development
    User Authentication
    Firebase Realtime Database
    React Bootstrap
    Mobile App Development
    Stripe
    Mobile Development Framework
    Android App Development
    React Native
    React
    Mobile UI Design
    iPhone App Development
  • $51 hourly

    • 4.8/5
    • (121 jobs)
    I have over 10+ years of experience in mobile app development. I started my career as a native developer and migrated my self to hybrid as app developer. In my work experience I have tried making every day a learning day which makes me capable enough to convert an idea to a high quality Android and iOS apps. I don't call myself a typical developer and rather call myself a technical partner or consultant who make the best plan for the project need, its more important to plan the project. Its important to answer 3 areas, which services are needed for your project? which technology is best for your current and future goals? which is the best process to development to be adapted for my project? As mentioned above its imp to select right service which may suit your project need. I deliver following service - Backend Development - API Development - Mobile App Development - Web Development In the era when the Technology is evolving at a rapid speed its important the select right technology which is best fitted to your project current and future needs: - Swift - Objective-C - Kotlin - Java - Flutter - React Native - Node.js I tailor make process of each project which is best suited for that project which will increase productivity of the team, quality of the code, performance of the app and other best practice of the software development. My development lifecycle includes various things as follow: - Wire-framing - Prototyping - Designing - Development - Version Management using Git - Automating deployment process - ENV management to mitigate the risk - Layer of tester process to identify bugs at early stage - Unit testing - E2E testing Each and every process is curated and design to best suit the need of the project. My client love my work, and showered me with the amazing feedback on Upwork. They also call me a great communicator and guide for the mobile app development.
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Next.js
    Native App Development
    Twilio API
    GitHub
    MEAN Stack Administration
    Node.js
    AngularJS
    Ionic
    Kotlin
    React Native
    Swift
    Android App Development
    iPhone App Development
    Mobile App Development
  • $15 hourly

    • 4.9/5
    • (81 jobs)
    I've build up various Mobile application on Android, IOS and Web including Backend Api's for many general clients. My middle competency lies in whole end-end organization of whole Mobile and Web application and I'm searching for opportunities to create mobile and web applications for you that will boost your business. I am qualified to provide you a efficient and reliable product with the reasonable budget and timeframe. Collection of Skills:- Android Development(Java and Kotlin) using Android Studio IOS Development(Swift) using Xcode Flutter(Dart) Data Management(Firebase, MySQL) Version Control(Github,Bitbucket) Task Manager(JIRA) Web development with Django (Python Programming) Front Web development with HTML,CSS We can provide the following services within Mobile App. Maps GPS Managing API Payment gateway Integration Web Services Splash Screen Language Translation Generate Notifications SQL-lite Database Material Design Fire-base Responsive Screen Push notifications Firebase Integration Admob Integration Cameras Controlling In app Purchase Language Translation and much more. If you want to develop a mobile app then you are at the right place. **We Only Develop Application Not Games**
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Tablet
    Android App Development
    Flutter
    iOS
    Android
    Kotlin
    PHP
    Java
    Web Development
    Dart
    RESTful API
    iPhone
    Mobile App Development
    Swift
  • $50 hourly

    • 4.8/5
    • (285 jobs)
    📱 Mobile Application Expert ✅ Upwork Top Rated 🏆 Google Certified Associate Android Developer I can support you with both Websites and Native & Hybrid Mobile apps using Android Studio and Xcode Swift . With more than 5 years of professional experience in the software development company. Now I am very experienced with various categories and aspects of mobile app development including -Firebase - Google Maps - GPS Location - SQLite and Realm - Push Notifications - UI/UX development - Ads Integration - REST API's I am happy to deliver you a world-class quality work and full support until you will be satisfied. Thanks
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Hybrid App Development
    Social Media Account Integration
    API Integration
    Chat & Messaging Software
    Map Integration
    Location-Based Service
    iOS Development
    Firebase Cloud Firestore
    Android Studio
    Mobile App Development
    Google Maps API
    Mobile UI Design
    Firebase
    Android App Development
  • $45 hourly

    • 5.0/5
    • (9 jobs)
    My professional experience includes over 10 years of enterprise and mobile development. I have started with enterprise java projects back in the time. After discover mobile development and more specifically android apps development I switch immediately my professional career and now I have more than 50 android projects in my portfolio. For the last 10 years I focused explicitly to native android development. Have been working in many international companies both as contractor and full time employee. Some of technologies I used are firebase, parse(before Facebook shut it down), Wordpress api, google maps api, rest services git and of course many others. I have been always dedicated to my work. I am proud with all of my apps that I have been working on. I am always opened for new business proposals and promise to deliver well documented, tested and fully functional native android apps.
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Git
    Mobile App Development
    Retrofit
    Kotlin
    Firebase
    Google Gson
    Room
    Android
    Object-Oriented Programming
    Clean Architecture
    Android App Development
    Java
    Web Service
  • $20 hourly

    • 4.8/5
    • (71 jobs)
    💎 10+ Years of Experience 💎 Quality of Service with 100% work satisfaction to clients. 💎 Accuracy Rate is about 98% to 100% 💎 Eager to learn - Honest - Reliable - Analytic - Ambitious - Team Player 💎 Moble App Development Technology expertise Using IONIC & REACT NATIVE 💎 💎 Firebase / Node.js / Express / MongoDB Expert My name is DINESH LALLER and I am a FULL-STACK developer with 10+ years of experience. I have mastered both client- and server sides of development, and possess a large technology stack, such as MEAN/MERN. I work with SQL and NoSQL databases: MongoDB, MariaDB, MySQL, My personal STRENGTHS: 💠 Strong technical and mathematical skills 💠 Ability to work as a part of a team and solo 💠 Experience working under tough deadlines 💠 Clear and straightforward communication ✅ PHP, Laravel, CodeIgniter, Yii, Symphony, Wordpress, Joomla, Drupal ✅ E-Commerce Websites ( Magento, Shopify, Woocommerce, Opencart) ✅ Mean/Mern Stack Development Angular Js, Node Js, VueJs, React. Js, Monogo DB ✅ Amazon AWS, API's Development, ✅ Enterprise Websites & Web-services(XML, JSON), SOAP ✅ 3rd party APIs for integration into websites Web services(XML, JSON), SOAP ✅ Mobile App Development ( IONIC+ REACT NATIVE apps) for both Android & IOS Platforms. ✅ Languages for Mobile App Development: Angular, JavaScript, HTML, CSS ✅ Frameworks: Ionic, React Native ✅ Mobile App Development Tool: Xcode, Notepad++, SublimeText, Atom, Xcode IDE, Android SDK, Android Studio, Eclipse, Yoga Kit ✅ Live Stream Video/Audio, Financial App, Event App, Loan Calendar I do both urgent and long-term projects. I always did and will do things in time. Contact me and I'll be happy to help.
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    API Integration
    Angular
    Hybrid App Development
    Payment Functionality
    Native App Development
    In-App Purchases
    JavaScript
    React
    Push Notifications
    Mobile App Development
    React Native
    Ionic Framework
    Node.js
    Laravel
    PHP
  • $35 hourly

    • 4.9/5
    • (102 jobs)
    ✅ Upwork Top Rated Plus & Verified Mobile Developer ✔︎ 5-star rated | 100% Job Success | 10+ years experience ✔︎ 95+ projects completed | 300+ apps published to Apple App Store / Google Play ✔︎ Extensive iOS and Android experience (Swift, Objective-C, Kotlin, Java) With over 400+ successful projects delivered in the last 11 years, I am a technical master of mobile applications. I faced multiple types of clients, i.e non-tech/tech, early-stage/flight-mode, upset with existing team performance/having a great team and want to extend, I made all of them happy with successful results. I developed mobile products in different domains including - Productivity - Fintech - Utilities - Lifestyle - News and Media - Location & Navigation - Photo & Video - Food and Drink - eCommerce - Grocery Delivery - Smart Busses - E-Magazine - Health Care - Fleet Management - Social Networking - Automotive - Contractor’s Marketplace and many more. I love iOS native development and have expert-level skills in Android native as well. I have very good skills for React Native development. If you are a startup and need mobile application consultancy if you have a good team but need a trustable and expert technical manager if your product is suffering no or un-professional development process. I am a good fit for you. With hands-on development experience and successfully managed multiple mobile application products, I am sure I can move you towards a successful path. As a former teacher, helping people reach their goals comes naturally to me. I’m looking forward to helping you create the next great app!
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Android App
    Ecommerce Website
    Mac OS App Development
    WordPress
    API
    AR Quick Look
    Android App Development
    React Native
    iOS Development
    Android
    Swift
    Node.js
    Kotlin
    Java
  • $20 hourly

    • 4.5/5
    • (72 jobs)
    ⌛️ 2000+ Hours of work on Upwork 💼 70+ Successful projects 📱 6+ Years of experience ⭐️ Deterministic record of 6+ years as a Mobile Application Developer. Below are the tech stacks in which I am working for more than 6+ years: 🔥 Mobile: iOS (Swift, Objective C), Android (Kotlin, Java), Hybrid (React Native, Flutter) 🔥 Web: React.js, Vue.js, Angular 🔥 Backend: Node.js, Laravel 🔥 Databases: PostgreSQL, MySQL, MongoDB, Firebase 🔥 Google & Amazon Cloud 🔥 UI/UX tools - Figma, Zeplin, Adobe Photoshop, Adobe XD I can assist you in UI/UX for your apps, development of apps, and testing. Before delivering the apps, I make sure that the app is bug-free and users do not get encounters any issues while using the app. ✨ SERVICES I PROVIDE: 1️⃣ Definition and Planning (Business Analysis, Project Planning) 2️⃣ UX/UI Design (Wireframing, Prototyping, UX research, Interface development, User-Roles, Product design, PoC/MVP Development) 3️⃣ Back-end development (Application Architecture, REST API, Server Adjustment, application development, Application Re-engineering) 4️⃣ Front-end development (Mark-upping, Client-side development, Animation, Responsiveness) 5️⃣ Mobile development (Native iOS and Android, Hybrid solutions, Publishing to App Stores) 6️⃣ Testing/Quality Assurance (Manual, Unit, Integration, Automation, test-cases) 7️⃣ Technical Support and Maintenance (DB Back-ups, Cloud/Data migration, Bug Fixing, 24/7 support) NOTE: If your required service is not listed, don't hesitate you can discuss it with me. Why Me? ✅ Reply Within 5 Minutes. ✅ 100% Technical Person with more than 5 years of experience. ✅ 99% Satisfaction with Clients. ✅ High-Quality Delivery. ✅ Expertise in Native & Hybrid Mobile application 🛎️ I am ready to do everything instead and for you. I will take all worries of the development process of your hands - just contact us right now. Let's hop on the call 📱 and discuss - just press "Invite To Job" or "Hire Now" on the right side of this page ☝ Have a cup of ☕ while I will code 💻 for you 😉
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    React Native
    Swift
    Android
    Flutter
    iOS
    iOS SDK
    Mobile App Development
    Mobile App
  • $35 hourly

    • 4.8/5
    • (34 jobs)
    🔴 Experience: 7️⃣ Years 🟡 Languages: Kotlin, Swift, Java & Objective-C 🟢 50+ Apps live on Play Store & App Store ⚫️ Top 10 Industries & Projects 🏆 1️⃣ Healthcare: Baritastic, Medesto, TrakMD, Blutwerte & Umergency 2️⃣ Social Media: Famlicious, Cravve & Enter The Party 3️⃣ Real Estate: Bonzo, Level-Up Coaching & CB Select 4️⃣ FinTech: Scrowbly, Link & Budget Buoy 5️⃣ BLE: Go Power, Hawk Eye & Drive Mouse 6️⃣ Education: Russian Made Easy & WorkReady Mobile 7️⃣ Sports: PowerSkater 8️⃣ Communication: Kustomer & Share Via SMS 9️⃣ Logistics: Build Your Truck & Second Hand Car Dealership (SHCD) 🔟 Multi-Vendor Services: Yellper ⚫️ Approach for Startup/Scratch Projects 1️⃣ Initial chat & then Zoom call for vivid understanding of client's business ideas and requirements 2️⃣ Creation of technical requirements/scope document for client in the light of 1st call & all other provided details 3️⃣ Creation of project proposal & estimates/breakdown after the approval of requirements document 4️⃣ 2nd call with client to present project breakdown, explain development approach & entertain any queries/concerns 5️⃣ After agreement & project award, adding client to Slack for a smooth and constant communication 6️⃣ Design, development, testing, deployment & free maintenance/support
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    iPad App Development
    Mobile App Development Consultation
    Mobile App Redesign
    Flutter Stack
    Adobe XD
    Mobile App Design
    Wireframing
    Figma
    Mobile App Bug Fix
    Mobile App
    Mobile App Improvement
    iOS SDK
    UI/UX Prototyping
    Swift
    iOS
    Android
    Mobile App Development
    Kotlin
  • $30 hourly

    • 5.0/5
    • (55 jobs)
    👋 Hey! I am running a Top-rated software development company where we deliver full-fledged web & mobile solutions: from stunning product design to flawless code. Our core services include: 🟢 Mobile app (iOS & Android) development 🟢 Web development 🟢 MVP development 🟢 UX/UI Design 🟢 Staff Augmentation 🟢 Discovery Phase Contact me and let's make your idea fly together. Hope, it will be a start of long-term and transparent collaboration!
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    REST
    Java
    Objective-C
    Swift
    Android
    iOS Development
    Android App Development
  • $55 hourly

    • 4.4/5
    • (33 jobs)
    🥇TOP B2B Company according to Clutch (7+ Clutch awards in total)🥇 🏆The most experienced IoT and embedded systems development agency on Upwork according to a number of successfully completed projects in the industry🏆 🚀We helped 6 customers to raise more than $5,000,000 on Crowdfunding platforms in total ✅ Hello there! My name is Sergey and I'm a Business Development Manager at Integra Sources. My main goal is to provide you with our expertise, skills, and technical knowledge so that your project requirements and priorities are always met, and the project is delivered perfectly and just in time. If any questions arise - please feel free to touch base with me. ✅ Who we are? We founded Integra Sources with an idea to create things deemed impossible and we've been successfully doing that since 2014. Since then, Integra Sources has completed more than 100 projects making happy more than 40 clients. We are proud to have a 90% client retention rate. Currently 50+ employees. ✅ What do we do? Integra provides professional services in the areas of IoT, electronic design, embedded systems, kernel and driver development, system and application software development, computer vision, and robotics. ✅ Why choose us? - Reliable electronic design team - All kinds of embedded software development - Full-stack software development capability - Dedicated project management - Effective testing techniques - Expected delivery - Support and maintenance - Privacy security ✅ How do we cooperate? - Project-based outsourcing - Dedicated development team - Research & development - Technology consulting - Solutions for startups Because we serve the needs of different kinds of businesses, we offer a choice of different frameworks that define collaboration between us and our clients. ✅ Industries we work with • IoT/consumer devices • Smart Home • Wearables • Industry • Healthcare • Sports • Entertainment ✅ What services do we offer? ✅ Electronic Design: • Embedded hardware • Power electronics • PCB design and layout • FPGA design Platforms: • STMicroelectronics: - STM32F4 Series (STM32F401, STM32F405/415, STM32F407/417, STM32F410, STM32F412, STM32F412/423, STM32F427/237, STM32F429/439, STM32F446, STM32F469/479) - STM32F2 Series (STM32F2x5, STM32F2x7) - STM32F7 Series (STM32F7x0, STM32F7x2, STM32Fx3, STM32F7x5, STM32F7x6, STM32F7x7, STM32F7x9) - STM32H7 Series (STM32H723/733, STM32H725/735, STM32H730, STM32H742, STM32H743/753, STM32H745/755, STM32H747/757, STM32H750, STM32H7A3/7B3, STM32H7B0) - STM32F0 Series (STM32F0x0, STM32F0x1, STM32F0x2, STM32F0x8) - STM32F1 Series (STM32F100, STM32F101, STM32F102, STM32F103, STM32F105/107) - STM32F3 Series (STM32F301, STM32F302, STM32F303, STM32F334, STM32F373, STM32F3x8) • Nordic Semiconductor: - nRF51 (nRF51822, nRF51422, nRF51824, nRF51802) - nRF52 (nRF52840, nRF52833, nRF52832, nRF52820, nRF52811, nRF52810, nRF52805) - nRF52 (nRF5340) - nRF91 (nRF9160) • Microchip Technology/Atmel - PIC16 MCUs (PIC16F18446, PIC16F19197, PIC16F15386, PIC16F18346, PIC16F1779, PIC16F18877, PIC16F1619, PIC16F1709, PIC12F1572) - PIC18 MCUs (PIC18-Q41, PIC18-Q43, PIC18-Q10, PIC18-K83, PIC18-K42, PIC18-K40) - PIC32 MCUs (PIC32MK, PIC32MZ EF, PIC32MZ DA, PIC32MM, PIC32MX) - SAM MCUs (SAM C, SAM D, SAM E, SAM G, SAM L, SAM S, SAM V, SAM 4E, SAM 4L, SAM 4N, SAM4S) - AVR MCUs (tinyAVR, megaAVR, AVR XMEGA) - CEC MCUs (CEC1712, CEC1302, CRC1702) • NXP Semiconductors - iMX RT (iMX RT1170/RT1064/RT1060/RT1020/RT1015/RT1010) - iMX 8 (iMX 8/8M Plus/8M/8M Min/8M Nano/8X) - iMX 7 (iMX 7ULP/7Solo/7Dual) - iMX 6 (iMX6ULZ/6ULL/6UltraLite/6SLL/6SoloLite/6SoloX/6Solo/6DualLite/6Dual/6DualPlus/6Quad/6QuadPlus) • Allwinner Technology - Allwinner A Series (A20, A33, A40i, A50, A63, A64) - Allwinner H Series (H2, H3, H6, H80) • Texas Instruments - C2000 MCUs - Hercules MCUs - MSP430 MCUs - Sitara processors • Infineon - XMC Series - Aurix Series • Xilinx • Intel • Silicon Labs • Freescale Semiconductor • Silicon Labs • Espressif Systems ECAD software: • Altium Designer • Eagle Cad • Cadence Allegro • OrCAD • KiCad • P-CAD ✅ Embedded Software Development: • Firmware • Board Support Package (BSP) Tools: • Visual GDB • Eclipse • Keil • IAR • CrossWorks IDE • Simplicity Studio • Code Composer Studio • Atmel Studio • STM32CubeIDE Languages: • C/C++, Assembler Real-time OSs: • FreeRTOS • Zephyr • ThreadX • NuttX ✅ Kernel and Driver Development: • Windows • Linux • Mac • Android Driver types: • Kernel-mode • User-mode • Virtual device drivers ✅ System and Application Software Development: • Desktop, Web and Mobile applications • Middleware • Cloud/IoT Solutions • Machine Learning • Computer Vision (OpenCV, TensorFlow) Platforms: • Windows, Linux, Mac, Android, iOS Languages/Frameworks: • C/C++, Qt, Python, Java, Kotlin, JS, Objective-C, Swift, PHP, C# ✅ Robotic Development: • Flying drones • Robots on wheels • Autonomous movement Technologies: • RTOS, ROS, Linux, OpenCV, Visual SLAM
    vsuc_fltilesrefresh_TrophyIcon Android SDK
    Embedded System
    Firmware Programming
    Computer Hardware Design
    Raspberry Pi
    nRF52832
    Embedded Linux
    Driver Development
    Internet of Things
    PCB Design
    Qt Framework
    Altium Designer
    Linux
    Microsoft Visual C++
    C++
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