Hire the best Android App developers

Check out Android App developers with the skills you need for your next job.
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  • $75 hourly
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Ionic Framework
  • $44 hourly
    Hi. I’m a native Android developer with 7+ years of software development experience. I’m working with modern development stack: Android Jetpack, AndroidX, Coroutines, LiveData, DataBinding, Room, Rx, DI, MVVM, Git, etc. I also have experience in​ using Flutter/Dart to build cross-platform solutions. Some areas in which I have extensive experience: - Media processing (photo, video, audio). - Geolocation. - Integration of third-party API like Facebook, Google, Twitter, Dropbox, Amazon. - Firebase services (FCM, Analytics, Crashlytics, AdMob, etc.). - Machine learning. - In-App Purchase. - Converting Web/IOS apps to Android. - And more… Please feel free to contact me and I'll help you at any stage, from an idea or small app to a full-scale solution. Thanks!
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Firebase
    Smartphone
    Java
    Android SDK
    Flutter
    Kotlin
    Mobile App Development
    Android
  • $105 hourly
    ** HubSpot Design Certified ** Recently recognized as a HubSpot Champion User Worked on many different types of applications and with many different technologies. Quickly learn new programming languages and technologies. Can also read and understand existing code to find and fix bugs. Have 26 years experience in IT. Have a Bachelors Degree in Math as well as an MBA. I have worked with many programming languages including COBOL, Visual Basic, C, C++ and Java. Currently working on projects utilizing Angular, JQuery, Java Script, CSS, HTML5, Hubspot and Flex. I am familiar with content management systems. I have worked on front end designs/pages and back end services. Have done responsive development, desktop applications, and mobile applications.
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    CSS
    HTML
    Content Management System
    HubSpot
    CMS Development
    Website Customization
    Agile Software Development
    Blog Development
    Inbound Marketing
    Templates
    iOS Development
    Business with 100-999 Employees
    JavaScript
    Java
  • $60 hourly
    💻 I've been creating software for Android OS since 2017. 🚀 Developed over 30+ projects for millions of users. 🌎 Have experience with international teams and customers from Great Britain, the Republic of Zimbabwe, the USA, Russia, Ukraine, Romania and others. Can help you: 🔹Create an Android application from scratch 🔹Optimise your existing android application 🔹Choose the most reliable and convenient technology stack and architecture for your application 🔹Provide quality estimation of a task 🔹Find and resolve issues of your android application and implement new features 🔹Interview candidates on Android developer position into your team 🔹Grow your business via high-quality application I have experience in projects: 🔸E-commerce, social, communication projects 🔸Internet banking applications 🔸Telecommunications 🔸Cryptocurrency 🔸Media player 🔸Device hardware (Bluetooth, GPS, Accelerometer, Camera, etc.) 👋Do not hesitate to contact me If you need any further information 👋
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Model View Presenter
    Model View ViewModel
    RxJava
    Dagger 2
    Android Room Persistence
    Firebase
    Agile Software Development
    Multithreaded Programming
    Material Design
    solidThinking Envision
    Clean Architecture
    Android SDK
    Kotlin
    Java
  • $25 hourly
    Hello, I'm Android (since 2012) and C++ (since 2010) developer. I tend to keep myself up to date with important changes in the Android world and regularly look into new ways of solving things. Always looking for new challenges and opportunities. Good skills: • Android development: - Clean Architecture; - Data storage: Realm, SQLite, SharedPreferences, Internal/External memory; - Sensors, Location and Maps, Geofences, beacons; - Understanding and using guidelines; Material Design; common UI/UX patterns; using support libraries; - Creating applications for multiple screen resolutions/sizes; - Firebase (database, authentication, analytics, notifications, remote config); - Integrations with social networks (facebook, google, twitter, foursquare, vkontakte); - Dealing with REST API; - Signing and publishing applications. Successfully implemented pet-projects on Google Play (2m+ downloads); - Open source libraries: Dagger 2, Retrofit 2, ButterKnife, EventBus, Timber/Hugo, Crashlytics. • C/C++(C++11) (STL, COM, WinAPI, DirectShow, Direct3D 10). Video processing; reverse engineering, hooks; Linux (GCC, make, creating rpm and deb packages); networking (sockets, zeromq + protobuf); multithreading, high load; Basic skills: • C# – desktop applications, tools. • Python (Powershell, bash) – scripts to automate routine tasks. • PHP – simple back-ends, mostly for pet projects. • HTML, CSS, Javascript. Version control: SVN, git.
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    C
    C++
    Android
  • $50 hourly
    I have been developing apps for mobile devices since 2012. In that time I have collected a number of tools and skills to improve both development speed and quality in the apps I create. My passion is improving user experience - developing apps which users will enjoy interacting with. This includes UI design, animated content, polished transitions, etc. With many apps requiring online services I am also well versed in various server-side technologies for user authentication, databases, analytics, and much more. Previous clients have been impressed by my excellent communication skills and ability to work consistently with little to no supervision. Please take a look at my portfolio and client reviews to see previous work and evidence of my work ethic.
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    iPhone App Development
    iPad App Development
    iOS Development
    Apple Xcode
    Android
    Android Studio
  • $32 hourly
    🔥 About Me: ⠀⠀✔ Experience: more than 7 years in mobile development. ⠀⠀✔ Technological stack: Java, Kotlin, Android SDK, MVVM, Android Studio, Firebase, RxJava2, Coroutines, Retrofit2, Firebase, Git, Jira. ⠀⠀✔ Experience in Databases: SQLite, Room. ⠀⠀✔ Experience in Custom Android devices development, such as Zebra devices. ⠀⠀✔ Area of expertise: Healthcare, E-commerce, FinTech, Logistics, Car Rent, Social Networks. ⠀⠀✔ Development for me is a challenge where I am capable of creating complex projects and find the best solutions.
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Android Studio
    Smartphone
    Native App Development
    Camera
    API Integration
    Android Room Persistence
    Dagger 2
    Git
    Model View Presenter
    Model View ViewModel
    Java
    Android SDK
    RxJava
    Kotlin
  • $20 hourly
    Senior PHP and Android developer with extensive experience in building variety of applications including responsive websites, mobile apps ,Ecommerce stores, Desktop applications etc. My specialization includes developing calculators in different technologies (Desktop, Web and Mobile) that may require advance features such as complex operations, algorithms, graphical representations , database etc. In order to keep my clients 100% satisfied with the final product/Application, I keep good communication, providing regular updates according to their feedback. Looking forward to build healthy, long term relationships with you! Best Regards
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Microsoft Excel
    Salesforce CRM
    Laravel
    Database Design
    Web Design
    HubSpot
    Twilio API
    API
    Website
    WordPress
    Kotlin
    Java
    PHP
    JavaScript
    C#
  • $40 hourly
    I am an expert mobile application developer of IOS and Android with around 5 years of experience. My coding skills are top notch as I develop state of the art applications with maintainable and clean code. My objective is to provide for my clients, the best quality work. I believe that my success is directly related to the success of my client. For me, The most important part of the job is to understand the requirements of the client and use my expertise to provide the best quality content to bring fortunes for my client.
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    iOS
    Smartphone
    Swift
    Bootstrap
    HTML5
    CSS 3
    AngularJS
    iOS Development
  • $44 hourly
    Experienced Software Developer specializing in native Android application programming. Foremost, I help business take advantages through a mobile application which is created with the use of modern technologies. Not only compliance with up-to-date Google design standard is on principal, but also bringing passion to perfect UI and UX into every project. I am prepared to share invaluable experience in all areas related to Android from 'Analytics' to 'supporting all Android versions' and give deep expertise in nuances as well as ready to work with Scrum or any other Agile development methodology. I look forward to building the long term professional relations with clients. I have experience with: - Cryptocurrency (Blockchain, bitcoins, cryptocurrency wallet apps) - Taxi App - Social network - Real time map - Advanced chat - Torrent app - Music and recorder app - Offline App with invisible synchronization with server - Instant App - Firebase integrated app (AdMob, Analytics, A/B testing, etc.) Architecture: Clean Architecture (VIPER), MVP, MVVM, MVC Technologies and Libraries used: - Rx: rxJava, rxAndroid, rxRelay, rxBinding and my own rx solutions. - DI: Dagger, Toothpick - Architecture: Moxy, Cicerone - Databases: SQlite, Room, Realm, StorIO, Cupboard, Binaryprefs - Network: Retrofit, okHttp - UI: Butterknife, Picasso, Glide - Tools: Crashlytics, Stetho, Firebase, Fabric, LeakCanary, Timber, Frodo - Testing: Espresso, jUnit, Mockito, Robolectric, Jacoco - Other: Gson, AutoValue, JodaTime, AndroidJob, Google services Feel free to contact me with any Android questions. I will be pleased to help you!
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Android SDK
    Android
    Mobile App Development
    Material Design
    Agile Software Development
    Multithreaded Programming
    Scrum
    REST
    Java
  • $63 hourly
    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 App Development
    Machine Learning
    VPN
    Wear OS
    Smartphone
    Mobile App
    iOS
    Android
    iPad App Development
    Kotlin
    Android NDK
    Java
    Android SDK
    Swift
    iOS Development
  • $125 hourly
    Are you looking for an expert Mobile App Developer to help you transform your app ideas into a completed app? Do you want to create a mobile app from scratch or fix bugs or update an existing app? Having published over 20 apps to the App Stores, I can help you with the following: - Prototype, and deliver a complete working MVP app in a very short time. - Modernize and extend your legacy application while keeping existing functionality working. - Provide architectural design and review of new applications and save you time, money, and resource. - Develop a high-performance app from scratch based on your UX/UI design and wireframes or work with my designers to create one for you. - Rescue unfinished projects and identify the best, cost-effective solution to complete and launch the app. - Need custom Android OS modifications and want to work on use cases that are outside of stock Android OS. You are in the right place if you are looking to build a modern, well-tested, stable app using modern development tools and best practices. I have extensive, hands-on experience, designing, developing, and delivering the following types of mobile app - Point of Sale Applications - Payment processing Apps - Custom Video player apps - Chat and community engagement apps - CRM and Invoicing apps - Route Management and food delivery apps - Scheduling and booking apps - Time and attendance apps - Fitness business management apps - And numerous business and utility apps I do not develop games I understand that mobile apps are an important business driver for your business and as a fellow small business owner, I go the extra mile to ensure that I deliver a complete, dependable mobile application and provide ongoing support as needed to ensure your business objectives are met. See what my previous clients are saying about. My name is Val Okafor, I am a San Diego, CA-based expert Android app developer with over 8 years of mobile app development experience and overall 14+ years of industry experience. Technologies I work with - Programming languages: Java, Kotlin, JavaScript - Frameworks/Platforms: Firebase, Node.JS, TypeScript - Professional software engineering tools and methodologies - Test Driven Development, Clean Code, - Equipped to work with AOSP, Dev Kits, & IoT Devices.
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Blockchain
    Blockchain Development
    iOS Development
    iPhone App Development
    Android Room Persistence
    Android
    Mobile App Development
    Firebase
    Firebase Realtime Database
    Firebase Cloud Firestore
    Kotlin
    Firebase
  • $30 hourly
    👋 Hi there! I'm Vitaliy, Your Seasoned Android App Developer! 🚀 With over 5 years of hands-on experience in the field, I bring a wealth of knowledge and expertise to the table. My passion lies in crafting exceptional Android applications that stand out from the crowd. Whether it's building high-quality apps from scratch or fine-tuning existing products, I'm here to make your Android app dreams a reality. 🧰 Tech Stack Highlights: - Languages: Kotlin, Java - Development Principles: OOP, SOLID, DRY, TDD, BDD - Architectures: MVVM, MVC, MVP, MVI, Clean Architecture - Android Ecosystem: Android SDK, Gradle - Android Jetpack Components: Jetpack Compose, LiveData, DataBinding, ViewBinding, Hilt, and more - Concurrency: Kotlin Coroutines, RxKotlin, WorkManager - Testing: Unit Testing (JUnit, Mockk, etc), Firebase, Retrofit2 - Databases: SQL, SQLite, Room, SharedPreferences, DataStore - Project Management: Jira, Trello, Confluence - Version Control & CI/CD: Git, GitHub, GitLab, Jenkins, SonarQube, Artifactory ✨ Why Choose Me? - Experience: 5+ years of commercial Android development experience. - Kotlin Specialist: I specialize in Android development using Kotlin, ensuring modern and efficient code. - Full-Cycle Development: From ideation and design to development, testing, and deployment, I've got you covered. - Detail-Oriented: I have a keen eye for detail, ensuring pixel-perfect UI and a seamless user experience. - Collaborative: Strong communication and problem-solving skills make me an excellent team player. 📥 Ready to embark on an Android app journey that exceeds your expectations? Let's connect and discuss how I can bring your Android app project to life!
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Retrofit
    Firebase
    JUnit
    Data Binding
    JetPack
    Gradle
    Android SDK
    Clean Architecture
    Java
    Kotlin
    Android Studio
    Android
    Mobile App Development
  • $100 hourly
    I’m a Sr. Full stack mobile application developer with 12+ years of experience in mobile application development and design, specializing in Hybrid-platform (React Native/ Flutter/ Ionic/ Xamarin) Android and iOS App Development. 🛡️ I have developed more than 50+ large-scale applications for a variety of domains like Banking, HealthCare, Social media, eCommerce, etc. Delivered bug-free, high-performing, and responsive applications to the clients, which helped in their businesses a lot. I spend a lot of time with the business throughout the project. I help lead and run requirements gathering meetings, demos to stakeholders and executives, and post-project concerns and backlog grooming. I have learned how to communicate effectively with both technical and non-technical audiences. The results of these business meetings are then used to form our team's sprint. I try to promote agile development with daily stand-ups, assist in weekly internal backlog grooming sessions, and help drive bi-weekly sprint plannings and retrospectives. My goal is to deliver a quality product on time to see the client happy. Let's catch up on a discovery call 📞 and I might be able to build you an Awesome Product. Cheers! Allen 🧔
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    ASP.NET
    Firebase
    Chat & Messaging Software
    Automation Anywhere
    HTML5
    SQL
    CSS
    Mobile App
    C#
    Figma
    Xamarin
    Mobile App Development
    Flutter
    React Native
  • $17 hourly
    I have the experience and expertise in delivering high performance mobile applications on platforms including iPhone / iPad and Android / Tablet. I usually work on popular mobile platforms including iOS 5, 6 and Android which runs from iPhone 3GS, iPhone 4, iPhone 4S and iPhone 5 as well. With a deep understanding of the core technologies driving iOS and Android platform, I can quickly find solutions to engineering challenges and deliver superior mobile apps to clients on time and on budget. My depth of experience and results-oriented, no-nonsense approach to product development dramatically decrease the time needed to propel an idea from inception to highly polished app. Also with a team of specialists, we have the design and development expertise to transform your ideas into stunning Mobile experiences. Major development platforms: - iOS ( iOS 6.0, iOS 5.1, iOS 5.0, iOS 4.3, iOS 4.0 ) - Android ( Android 2.1, Android 2.3, Android 4.0 ) Mobile Devices I have: - iPhone - iPad # iPhone 3GS (iOS 4.0) # iPad 3rd Generation (iOS 6.0) # iPhone 4G (iOS 5.1) # iPad 2 (iOS 5.1) # iPhone 4GS (iOS 6.0) - Android # Samsung Galaxy S II (Android 4.0) # Nexus One (Android 2.3.6) # Samsung Galaxy Tab (Android 3.1) # Samsung Galaxy S (Android 2.1) Core Skills and Experiences # iPhone/iPod/iPad, Android, Titanium, Phonegap # Web Service, Ajax, XML, JSON, RSS, SOAP, WSDL # iPhone/Android Video/Audio Streaming, Video Editing, Decoding/Encoding # MySQL, SQLite on iOS and Android, HTML5, PHP, JSP # Social Integration with Facebook, Twitter and Google Plus on iOS and Android # Google Map Service, Foursquare # Flurry, Testflight, Google Analystics on iOS and Android # CoreData, CoreGraphics, Animation # Cocos2D, OpenGL, Corona, Unity3D # Box2D, Chipmunk # Game Center, In-App Purchase, Multiplayer Game # iAd, Adwirl, Admob, Chartboost, TapJoy, Cerebro Contact me with any idea or problem of your projects such as the problem of quality, deadline, compatible and so on, even budget. ;-) Just tell me your wish. I'm open to help you with those things and can give you the crucial solutions. I'd love to hear about your cool ideas. Thank you.
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    JavaScript
    HTML5
    Objective-C
    iPhone App Development
  • $20 hourly
    I am a passionate and results-driven developer with 11+ years of hands-on experience in crafting top-notch mobile applications. My expertise lies in React Native, the cutting-edge technology that allows me to build high-performance mobile apps for both Android and iOS platforms simultaneously. As a Hybrid Mobile App Developer, I blend the power of web technologies with native functionalities to create apps that are efficient, robust, and user-friendly. My proficiency in React Native empowers me to design and develop cross-platform applications that not only look stunning but also deliver seamless performance. Whether you need a simple business app or a complex enterprise solution, I've got you covered. I have in-depth knowledge in Objective-C, JavaScript, C++, C#, HTML5, Swift & Apple Xcode and Cocoa Touch, jQuery Mobile, React Native, and UI Kit mobile app development frameworks. Mobile App Development Services: ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ ✅ iOS–iPad/iPhone app development ✅ Android app development ✅ Cross-platform mobile app development ✅ Mobile game development ✅ Internet of Things (IoT) ✅ AR/VR app development Types of Mobile Apps: ⟷⟷⟷⟷⟷⟷⟷⟷ As an Experienced Android and iOS - iPad/iPhone mobile app developer, I have worked on various kinds of mobile app development projects: ✅ Social Networking ✅ Utility & Gaming ✅ Chat/Messaging ✅ News/Magazine ✅ Geo-Location mobile app ✅ Online Shopping & m-Commerce ✅ iBeacon mobile app ✅ Audio/Video Streaming ✅ Movies ✅ Entertainment ✅ Tour/Travel mobile app Mobile App Development Technology expertise: ⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷⟷ As a full-stack mobile app developer, I have decent expertise in iOS & Android native & hybrid cross-platform mobile app development technologies: ✅ Languages for Native App Development: Swift, Objective-C, JavaScript, AngularJS, Mobile JQuery, NodeJS, React JS, Core-Java, Android ✅ Frameworks: Cocoa Touch, SDWebImage, Foundation, Alamofire, React Native, Cordova, Phonegap, Dalvik, ART ✅ Tool: Xcode, Notepad++, SublimeText, Atom, Xcode IDE, Android SDK, Android Studio, Eclipse ✅ Amazon MWS API, AWS, Repricing, Sales tracking ✅ Live Stream Video/Audio, Financial mobile app development, loan calendar, event app development ✅ Networking/Cloud: JSON, REST APIs, SOAP APIs, XML, Parse, CloudKit, Firebase, Google APIs ✅ Social network integration (Facebook, Twitter, LinkedIn) ✅ Image Processing ✅ Web Service, Ajax, XML, RSS, SOAP, WSDL ✅ Mobile App Testing: Apple Instruments, TestFlight, Diawi, Appetize, Ranorex, AppkitBox ✅ Push Notification, Geolocation- GPS location processing, media streaming, RESTful APIs ✅ CoreData, CoreGraphics, Animation, 2D Animations, QuartzCore ✅ Wireframing: Invision, Balsamiq, Marvel, Moqups, and MockingBot ✅ Mobile App Design UI/UX tools: Storyboard, Sketch, Photoshop ✅ In-App purchases implementation ✅ ADS integrating (Admob, iAd, Adwords, Video Ads) ✅ Code Repository: GitHub, SVN ✅ Google Map service, open street maps, KML Overlay implementation, Apple Map service ✅ App Store optimization-ASO & App Store/Play Store submission process ✅ Speech recognition, text-to-speech, Siri ✅ Chat API: Video Conferencing (Zoom/WebRtc/Twilio, XMPP) ✅ Photo/video/audio management (capturing, editing, and sharing) ✅ Mobile App Backend: Node.js /PHP/.Net / Python backend development ✅ Device Kit: Bluetooth Low Energy (BLE), iBeacon, NFC, credit card reader, MIDI ✅ Analytics SDKs: Google Analytics, Fabric, Firebase, Flurry Analytics ✅ Database Management: MongoDB, MySQL, SQLite, PostgreSQL, MSSQL, Cassandra If you're ready to transform your app idea into reality or revamp your existing application, feel free to reach out to me. Let's discuss your project requirements and explore the possibilities together. Thank you for visiting my profile, and I look forward to working with you soon!
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    iPhone & iPad Apps
    Web Application
    Android App
    Kotlin
    PHP
    JavaScript
    React Native
    Flutter
    Hybrid App Development
    iOS Development
    Swift
    Node.js
    Mobile App Development
  • $40 hourly
    Hi there, My name is Mahmoud and I am an expert in android native and cross-platform app development for IOS and android using Flutter. I can help you deliver the final app from the initial idea analysis, UI/UX design, app development, app test, and final release to the store. I am not a freelancer, I am a business partner whom you will find always to support and involve your idea so it can rise. **Types of applications I have experience with** ✅ Bluetooth apps ✅ Bluetooth apps connecting with boards like Arduino (Reading & Writing data to boards) ✅ Open cv apps( Scanner apps and Image processing) ✅ Social networks (Login, Register, Profile) ✅ In-App Purchase apps ✅ Stream apps ✅ Audio Books apps ✅ Chatbot apps ✅ AI apps ✅ Learning apps ✅ Food apps ✅ E-commerce applications ** Skills and Expertise ** ✅ Java & Kotlin ✅ Web services (JSON -XML ) ✅ App design ✅ App testing ✅ Launch applications ✅ Git and Bitbucket (Version Control) ✅ Cross-Platform ✅ Code Review ✅ JIRA ✅ Mobile Notifications ✅ Material Design ✅ Restful API ** Libraries and frameworks ** ➡︎ RXJava2 ➡︎ Dagger2 ➡︎ Rretroifet2 ➡︎ Butterknfe Picasso & Glide ➡︎ JUnit, Mockito and Espresso ➡︎ Firebase and google services ➡︎ AndroidX/JetPack ➡︎ Exo Player ➡︎ Open Cv ➡︎ ** Design patterns ** ✅ MVP ✅ MVC ✅ MVVP ** Brilliant reviews by my previous clients ** ⭐️ "Mahmoud is very cooprate developer, has very good development experience." ⭐️ Another super great experience with Mahmoud. There is really no problem he cannot solve with Android App. Again this was another app which required external device to connect to phone. Mahmoud developed this remotely in a very professional way and fixed everything till perfection. We feel very lucky to have met him as apart from great competence in developing Android App Mahmoud is very nice and gentle guy to deal with and has always a positive attitude. Well done Mahmoud !" ⭐️ "Job completed on time with outstanding quality of work highly recommended" If we have an idea that you need to make real, Just tell me details and see the magic. Best regards,
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    App Design
    Android SDK
    Mobile App Testing
    Kotlin
    Java
    Firebase
    In-App Purchases
    Android
    RESTful Architecture
    Flutter
    Android Studio
    Mobile App Development
  • $10 hourly
    Hello my profile visitors, Thank you so much for looking into my profile. Whether you are a 𝗦𝘁𝗮𝗿𝘁𝘂𝗽, 𝗘𝘀𝘁𝗮𝗯𝗹𝗶𝘀𝗵𝗲𝗱 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗼𝗿 𝗹𝗼𝗼𝗸𝗶𝗻𝗴 𝗳𝗼𝗿 𝗠𝗩𝗣, you will get 𝗛𝗶𝗴𝗵-𝗤𝘂𝗮𝗹𝗶𝘁𝘆 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 at an 𝗔𝗳𝗳𝗼𝗿𝗱𝗮𝗯𝗹𝗲 𝗖𝗼𝘀𝘁, 𝗚𝘂𝗮𝗿𝗮𝗻𝘁𝗲𝗲𝗱. Interested? Just click on the '𝗜𝗻𝘃𝗶𝘁𝗲 𝘁𝗼 𝗝𝗼𝗯' button and let us discuss about your project and your vision. 🔹 During the last 11+ years, I have developed many different types of apps and website. Food delivery app and website On-demand services Salon app and website Beauty app and website Taxi booking app and website Car rental app and website E-commerce app and website Health and fitness app Travel app Music streaming app Video streaming app Fintech app Telemedicine app Finance app Real estate app and website Social media app Chat app Business app and website Dating app and website Online education app and website Tutor app Hotel Booking app and website Flight booking app and website Online grocery ordering app and website There are many more apps and websites I have worked on in the past. 🔹 My core skills and experiences: ➔ Interaction with backend - Rest API, JSON, XML, PHP, Node.js, Python ➔ Databases / Data Management - SQLite, MySQL, Parse, MongoDB ➔ Social Integration - Facebook, Twitter, Youtube, Instagram, Snapchat, Tinder ➔ Chat - XMPP, Socket, Firebase, GetStream, Twilio ➔ Version Control Tools - Github, Bitbucket, Gitlab ➔ Google Map, Apple Map kit, Geolocation, GPS, Location Tracking ➔ Audio / Video Live Streaming ➔ Firebase APIs ➔ Paypal, Braintree, Stripe Payment Gateway ➔ QR Codes, Bar Codes, VIN Scanner, NFC Tags Reading ➔ In-App Purchase, Advertisement, Push Notifications, GCM, Google Analytics ➔ Photo & Video Sharing, Editor, Filter 🔹 I work with the below technologies for development: 𝗔𝗻𝗱𝗿𝗼𝗶𝗱: Kotlin, Java, Android Studio, Android SDK 𝗶𝗢𝗦: Swift, SwiftUI, Objective-C, Xcode, iOS SDK 𝗖𝗿𝗼𝘀𝘀-𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺 (𝗛𝘆𝗯𝗿𝗶𝗱): Flutter, React Native, Ionic 𝗪𝗲𝗯 / 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: PHP, Node.js, Python, Laravel, WordPress, Express.js, Nest,js, Django 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: React.Js, HTML5, CSS3, BootStrap, JavaScript, jQuery 🔹 Why you should hire me? ✔ I always work towards your success ✔ Quality work at affordable prices ✔ Strong Android, iPhone, and backend architecture and database knowledge ✔ Develop applications that support all devices ✔ Delivering product on/before time ✔ Always up-to-date with the latest technologies Let us connect, discuss and convert your idea to an amazing solution that becomes the part the part of your success.
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Web Development
    PHP
    Laravel
    Python
    Django
    Android
    iOS
    GPS
    Geolocation
    Payment Gateway Integration
    Firebase
    Kotlin
    Swift
    SwiftUI
    In-App Purchases
  • $200 hourly
    I am a full stack and hybrid mobile app developer with experience building complex responsive web apps, websites and mobile applications. My work has involved using: - Angular - Javascript/Typescript - NodeJS - HTML5 - CSS/SCSS - PHP - JQuery and working with Front-end and backend frameworks such as: - Ionic 2+ - Express - Slim PHP - Vue JS - Stencil JS and integrating NoSQL and SQL databases. I also have advanced knowledge of Git and its integration with Continuous integration and deployment. Testing has become a key component in my development work and I seek to ensure that all projects utilize integration and unit testing. My main interest lies in working with healthcare apps and services as this enables me to utilize my experience and expertise as a physician. However, I have learnt to appreciate the wisdom that can be garnered while working in other sectors and as such I am open to exploring any opportunity that will expand my boundaries and enable me to develop new skills and meet new awesome people.
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    AngularJS
    iOS Development
    Ionic Framework
    PHP
    Android
    iOS
    WordPress
    CSS 3
    HTML5
    Flutter
    CI/CD
    Angular
    TypeScript
    JavaScript
  • $40 hourly
    As an experienced software developer with a Bachelor's degree in Computer Science and Engineering, I am dedicated to delivering exceptional results. With over 10 years of experience, I have honed my skills in writing clean, efficient, and maintainable code, and I always stay up-to-date with the latest technologies. I specialize in web and mobile application development, and I am proficient in React, React Native, Next.js, Android & iOS native applications, Ionic, Flutter, and Angular. Additionally, I have extensive experience in building REST APIs using Node.js (Express) and Java. When it comes to working with clients, I believe in open communication and building lasting relationships. I have never left a project unfinished and always strive for 100% satisfaction. In fact, I am proud to have a 100% success rate on all my completed jobs. If you are looking for a skilled, reliable, and dedicated developer who can bring your project to life, look no further. Let's work together to achieve your goals!
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    ExpressJS
    Next.js
    Flutter
    Ionic Framework
    Android
    iOS
    React
    TypeScript
    Angular
    JavaScript
    Swift
    Node.js
    Java
    React Native
  • $45 hourly
    Developing What Your Brand Needs. Want a website? Or a mobile application? You are in the right place! ✅ Always trying to give the best outcome within the smallest time possible. 🧑‍💻 Keeping up with the newest technology 💻 Customers’ impressions are important 🙌 Only 5-Stars 🤩 Services Provided: • Senior Front-End Website Development Using Pure HTML, CSS and JavaScript. Need a Framework? No problem! Here are the frameworks which can be used: ‣ Bootstrap ‣ Tailwind CSS ‣ jQuery ‣ Chart.js ‣ Vue.js • Senior Back-End Website Development Using Pure PHP. Need a Framework? No problem! Here are the frameworks which can be used: ‣ Medoo ‣ Laravel ‣ CakePHP • Senior Android Application Development Using Native Java, XML and SDKs. • Senior iOS Application Development Using Native Swift, Obj. C and Cocoapods. • Junior Game Development Using Unity with C#.
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Full-Stack Development
    Jira
    Web Development
    Web Crawling
    Data Extraction
    Data Scraping
    Web Scraping
    NodeJS Framework
    Git
    Nuxt.js
    Node.js
    Laravel
    Vue.js
    WordPress
  • $28 hourly
    Hello, I am software developer (game oriented) with 6 years of experience in development and 5 years of professional experience in creation of mobile, PC and browser games using Unity engine (Android/IOS/WEBGL/PC). My portfolio contains more than 15 games created from scratch and published to Play Market and Apple Store (5M+ users total). I can take all the responsibility from you and help with development of quick prototypes, mechanics, AI, UI layouts, animations, shaders, plugins, monetization systems and a lot of other useful stuff. I am also High skilled in third party plugins integration: - Facebook / Twitter / Instagram / etc - Google services / Game Center : In-Apps / Leaderboards / Achievements / Cloud Saves / Local & Push Notifications - Firebase / Google Analytics / Flurry / GameAnalytics / MixPanel / Tenjin - Advertisements: MoPub, AdMob, ChartBoost, UnityAds, Vungle, Fyber, different Mediation services and other Also have experience in .NET WPF and C++/Qt.
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Mobile Game
    .NET Framework
    iOS Development
    Mobile Programming
    C#
    Unity
    Unity
    Game Programming
    Game Development
  • $100 hourly
    I'm Melissa Hong, the founder of OMG Code, a tech company specialized in web and app development. I'm honored to be a Top Rated Plus freelancer in Upwork's Customer Advocacy program, boasting a flawless Job Success Rate and holding the prestigious Top Rated Plus Badge. Additionally, I proudly serve as a Wix Community Leader and a Velo Certified Official Wix Legend Partner, bringing extensive experience in front-end and back-end web and mobile design and development. Throughout my career, I have achieved significant milestones. I have earned over $300,000 in earnings, received more than 90 five-star reviews, and successfully completed over 150 jobs, totaling an impressive 4500 hours of work. Recognized by Upwork, I have been named among the "Top 15 Wix Specialists," as well as the "27 Best Javascript Developers," "Top 27 Best Freelance PHP Developers," "Top 8 iPhone App Developers," and "Top 11 Android App Developers" for hire near San Francisco. In addition to these achievements, I have been invited as a speaker for respected organizations such as Wix, Upwork, Women Who Code, and Coding Dojo. Furthermore, I have contributed as an instructor and blogger for Udacity, collaborating closely with Stanford University. Follow your dreams, don't give up, and believe in yourself!
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Flutter
    Web Application
    Node.js
    Python
    PHP
    iOS Development
    WooCommerce
    WordPress
    Wix
    SQL
    Web Design
    JavaScript
    App Development
    Mobile App
  • $50 hourly
    Hello, and welcome to my Upwork profile! I am an experienced Flutter developer with more than 8 years of experience in the Application development field. In the last 3 years, I have specialized in Flutter development and have become proficient in this area. I have a strong foundation in full-stack development, and I am also experienced in backend development with Python. My recent work has been focused on developing FHIR-compliant health tech applications for a health tech company I have been working with since 2019. As a result, I have developed a deep understanding of the health tech industry and the unique challenges associated with developing applications in this space. In addition to my experience in application development, I have also been working as an Engineering Manager with the Health-tech organization, where I have been responsible for leading the Frontend team. This experience has provided me with valuable leadership and project management skills, which I am happy to bring to any project I work on. As a Flutter expert, I am able to develop pixel-perfect applications that not only look great but are also highly functional and user-friendly. My attention to detail and focus on quality ensure that the applications I develop meet the highest standards. I enjoy working collaboratively with my clients to develop applications that meet their specific needs, and I am always eager to learn and grow in my field. If you are looking for a skilled and experienced developer to help bring your vision to life, I would be happy to work with you. Please feel free to contact me to discuss your project in more detail.
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    FHIR
    Healthcare Software
    HIPAA
    RESTful API
    Flutter
    Mobile App Development
    Python
    iOS
    iOS Development
    Android
    Dart
    Django
  • $60 hourly
    I am a well-rounded software engineering expert with around two decades of experience. As a developer, architect and a consultant I have hundreds of successfully completed projects under my career belt. Software development is what I like and I do it very well. My skillset roughly covers these areas: - software development - applications design and architecture - troubleshooting and bug fixing - operations support - requirements analysis. My major areas of expertise are: - software development for a wide range of platforms, including but not limited to Microsoft ecosystem, Apple devices, web and cross-platform apps and services; - cloud platforms - Azure, CGP, AWS; - data modeling, data warehouses, ETL, data engineering; - Business Intelligence with a strong focus on MS BI (MSSQL, SSIS, ADF, etc) and Power BI; - Office 365 (O365). I can write clear and efficient code in a wide variety of programming and scripting languages. I hold a number of certifications from Microsoft, CompTIA and I am also a PMI-certified professional. I have excellent communication skills and unique cross-discipline experience. I will be glad to help you with your next software project. Feel free to reach out to me to discuss or invite me to your job.
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Microsoft Visual Studio
    C#
    Business Intelligence
    Microsoft Power BI
    iOS Development
    watchOS
    Troubleshooting
    Microsoft SharePoint Administration
    Microsoft Azure
    Apple Xcode
    React Native
    Microsoft Azure SQL Database
    Software Development
    Root Cause Analysis
    Database Programming
  • $25 hourly
    🚀 Highly Experienced React & React Native Developer 🚀 I'm a skilled developer with expertise in React, React Native, and Expo. My strengths lie in creating exceptional mobile and web applications with a focus on top-notch user experiences. 💼 Experience: Proficient in React.js | React Native | Redux | React Hooks | MobX Skilled in JavaScript | TypeScript | HTML | CSS Mobile App Development with Java and Swift REST API Integration Apollo GraphQL Web Development with Next.js Familiarity with Bootstrap and Material-UI 🎯 Achievements: Successfully delivered numerous projects meeting clients' expectations. Consistently provided elegant and efficient solutions. Committed to delivering high-performance applications. Let's collaborate to turn your app ideas into reality. Contact me today, and let's create outstanding applications together!
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    User Authentication
    Firebase
    RESTful API
    GraphQL
    AWS Amplify
    Docker
    Node.js
    React
    Backend Rest API
    JavaScript
    Mobile Development Framework
    AWS Lambda
    Mobile App Development
    React Native
  • $25 hourly
    I have more than 5 years of experience developing Android applications. I enjoy using and learning modern tech-stack and environments, estimating costs or developing time and providing valuable solutions. My main competences could be summarised as follows: • Android: Native Kotlin/Java (MVVM, LiveData, Coroutines, ViewBinding, Retrofit, Koin, Picasso, Dagger...) • Web Backend: Spring/J2EE, Node • Web Frontend: Bootstrap, JQuery, JS, CSS, JSF, PrimeFaces, RichFaces, JSP • Persistance: SQLite, MySQL, PostgreSQL and NoSQL databases (GraphQL, MongoDB, Firebase Realtime Database) • Testing: JUnit • Methodologies: Jira, Agile, SOLID Drop me a line!
    vsuc_fltilesrefresh_TrophyIcon Android App Development
    Android SDK
    Google Play
    HTML
    Model View ViewModel
    Firebase
    Kotlin
    Java
    Android
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How to Hire Top Android Developers

How to hire Android developers

Android is the world’s most popular mobile operating system (OS). Whether you’re trying to create an Android app from scratch, or port an existing iOS app to Android, an Android developer can help bring your mobile project to life.

So how do you find an Android developer? What follows are some tips for finding top Android developers on Upwork.

How to shortlist Android developers

As you’re browsing available Android development consultants, it can be helpful to develop a shortlist of the freelancers you may want to interview. You can screen profiles on criteria such as:

  • Expertise. If your app requires expertise in GPU programming, game design, or accelerometer control, you’ll want to find a specialist.
  • Past work. Good code is well documented, some developers showcase their past projects or provide presentations highlighting their achievements on their profiles.
  • Feedback. If you’re wondering what it’s like to work with a particular Android developer, past reviews are a good place to look.

The trick to finding top Android developers is to identify your needs. Is this app intended to be used as a secure user account portal? Will the app need to incorporate any unique features, such as scanning documents and reading text? The cost of your project will depend largely on your scope of work, and the specific skills needed to bring your project to life.

How to write an effective Android developer job post

With a clear picture of your ideal Android developer in mind, it’s time to write that job post. Aim to provide enough detail for a freelancer to know if they’re the right fit for the project.

An effective Android developer job post should include:

  • Scope of work: From user chat rooms to user authentication list all the deliverables you’ll need.
  • Project length: Your job post should indicate whether this is a shorter or larger project.
  • Background: Translate your Android developer needs into a candidate profile. If you prefer experience working with certain industries, software, or marketing channels, mention this here.
  • Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.

Android Developers FAQ

What is Android development?

Android developers use the Java programming language, the Android SDK, and other tools to develop apps for smartphones, tablets, and other mobile devices running the Android OS.

Here’s a quick overview of the skills you should look for in Android development freelancers:

  • Native app development through the Android SDK
  • Solid grasp of UI/UX design fundamentals
  • APIs such as REST and SOAP
  • Version control systems such as Git
  • Project management systems such as Jira
  • Cross-platform mobile app development frameworks such as React Native

Android development consultants help businesses create powerful mobile apps that can compete in the Google Play Store.

How much does it cost to hire an Android developer?

Rates can vary due to many factors, including expertise and experience, location, and market conditions. Learn about the cost to hire an android app developer.

Common mistakes that Android developers make

1. Not using asynchronous design

When you work with cloud applications, the assumption is that the user is connected to the internet while they’re accessing your application. You shouldn’t assume users always have instant, high-bandwidth access to the internet with a mobile app. If you attempt to make an API call or use remote services, it can cause your application to hang.

Users may not be aware that short hangs in the app can simple mean something is processing in the background. When your app needs to check for network resources or make a call to a remote API, consider using asynchronous cause and threads that perform the background action while still allowing your users to interact with the app. This will avoid user confusion and prevent the “Application Not Responding” dialog box from displaying.

2. Writing apps that aren’t optimized for low bandwidth

Many developers disregard low-bandwidth users, because high-bandwidth is so common in most areas. Mobile devices still haven’t caught up to the speeds of LAN connections, and many users pay high fees when they go over their dedicated data allocation for the month.

When you use images, always consider that users might have to deal with low bandwidth and data charges. Images should be designed or sized specifically for mobile apps. They can still maintain most of their quality, but they must have a reduced size. You should also limit the number of images on one screen. Too many images will slow down your app’s performance.

3. Using UI elements that work better with a mouse and keyboard

It’s a completely different world in mobile development. Users tap with their fingers and type with their thumbs. Your UI components must make it easy for a user to type a value (e.g., in a text box field) and then tap to go to the next element.

UI elements should be larger and easy for users to tap with their fingers. Having 20 small items for a user to tap isn’t the best idea. Menus should offer options that are easy to find and require minimal scrolling. Input components should be easy to tap and make a selection. Font sizes should be large enough for the user to see.

4. Using too much of the user’s battery power

Most batteries on the market give the user at least a half day of battery power. Some users get a full day from their battery. As more apps are installed on the device, the battery starts to drain faster. This is due to apps running too many processes in the background even when the phone is idle.

While some apps require background processes, most of them don’t. Unless it’s absolutely essential to your app, don’t eat up your user’s battery life with unnecessary background processes. Apps that eat up too much battery power are a nuisance to users and are often removed.

Don’t use network and data resources when it’s not necessary. Close processes when they aren’t necessary, and analyze memory usage (covered above in section

5. Not using standard input elements

Android’s Material Design is a “visual language” all apps must adhere to, and it dictates how nearly every aspect of a UI should look. Not only should you follow Android’s Material Design development standards, but you should also use standard input buttons, dropdown, and textbox components to avoid confusing the user. Your users should be able to easily identify common elements such as a submit button, a menu dropdown icon, input elements, and sections that contain instructions.

6. Forgetting to test Your apps on different screens

One of the top reasons apps fail is poor testing. Developers release code to their clients or deploy it to Google Play and the result is often an app with too many reported bugs. These reports lead to poor reviews and can damage the app’s rating so much that it may never recover.

Always test your apps with different sized screens (tablets and smartphones especially), and each version you support. You might need to hire a QA tester to perform this kind of test, or you can invest in multiple devices to use to create your own testing environment.

Helpful tips & best practices for Android developers

1. Learn XML and Java

Extensible markup language (XML) is a markup language that’s the foundation for the Android user interface (UI) and elements. Java is the back-end coding language of the Android platform, and it’s used with binding functionality with your XML layouts.

This small layout has one data object defined as “Customer.” For developers used to binding elements in even web design, this should be intuitive for you. The data element is defined in Java, and then the object data is bound to the front-end layout element. In this example, we have a first and last name.

Before you get started in Android development, you should be proficient in both of these technologies. Understanding the fundamentals of XML formats is relatively easy, but Java is an object-oriented language and object-oriented programming (OOP) can be challenging if you’re not familiar with the concept. A newer language and framework, Kotlin, has been introduced to help advance Android app development. It can also be used with legacy Java apps as Kotlin co-operates with Java code.

The best way to learn Java is to dive into someone else’s code. GitHub is filled with open-source projects that help you understand Java and OOP concepts. The better your OOP skills are, the easier it will be to create a better coded, less buggy Android app.

2. Understand memory limitations

Mobile devices don’t have the high memory limitations that desktops have. In mobile programming, you must learn to code with smaller memory limitations in mind. If you carelessly use memory on an Android device, you run the risk of your app crashing due to “out of memory” errors.

To work around this, use services on the device sparingly and release memory resources when your app is hidden. You can release memory resources by overriding the onTrimMemory event although you should know that this isn’t a magic solution that allows you to ignore other performance optimization throughout your code.

Google also recommends that you avoid or at least reduce the use of bitmaps to lower the memory use when your app is running on the device. You can also use third-party tools such as Picasso or Fresco.

3. Use the default keyboard based on required input

When the user clicks an input text box in an app, the keyboard that pops up should automatically display the characters required to send the right kind of input. For example, if the user is entering a phone number, a numerical keyboard should be the default keyboard. If the app is requesting an email, a keyboard with characters, @ symbols, and a .com key should display.

4. Always consider user security

When you create your mobile apps, always keep user security in mind. Security should be a priority and often needs research to develop an app that follows best practices to avoid common flaws.

Also, never use broadcast intents to pass sensitive data. This allows a malicious application to sniff the data. Instead, use explicit intents to keep data secure.

5. Don’t use the emulator for real-world testing

The Emulator in Android Studio is great for development and even debugging, but it doesn’t fully simulate a working Android device. You can assume basic environment features with the Emulator, but when it comes to testing, you should always use actual devices.

Of course, this is a huge investment for an Android developer, but it will make the entire development and testing life cycle much more efficient. Testing should never be taken lightly. Fewer bugs mean happier users. This doesn’t mean that you need to buy every device on the market to test your app on, but you should account for some of the more popular ones.

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