Android App Development Java Freelancers

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  1. Mushegh M.

    Mushegh M.

    Senior software developer

    Armenia - Tests: 2 - Portfolio: 12

    I'm senior software engineer with more than 9 years of experience in the software development area. The last 5 years I developed mobile applications starting from problem statement formulation and documentation development to end-user product delivery. My clients are always happy to work with me, which is the main reason of having 5 stars with more than 13 completed large projects. I hope you will be happy as well. The applications that I used to develop include: - Audio/Video conference, p2p connectivity - Messaging applications, supporting connectivity with various social networks and messaging platforms - Image processing and multimedia based programming with AVFoundation and OpenAL - Network programming, network monitoring solutions development - Database design and high performance database object models automation frameworks development - 2D/3D programming with OpenCV and OpenGL

    Groups: iOS Swift Test Contributors

    $40.00 /hr
    3,744 hours
    5.00
  2. David L.

    David L.

    Senior J2SE/J2EE, Javascript developer, Dojo Expert, AngularJS.

    China - Tests: 3 - Portfolio: 2

    Over the last 8 years, I have developed a wide range of web applications using Java, J2EE, WebService, Applet, HTML, DHTML, Javascript and MySQL, MSSQL, Oracle . I am seeking opportunities to build websites from the ground up for you or your business. Technical Skills: - Java - Core Java, J2EE - JDBC, JTA, JMS, Java Servlet, JSP - Web Services, XFire - Struts, Hibernate - JavaScript - Dojo Toolkit - Extjs - jQuery - AngularJS I also have some experience in the following areas: DOJO, SQL, Ajax, OOP, and software design and testing.

    Groups: Crossrider

    $55.56 /hr
    4,580 hours
    4.87
  3. Eduardo M.

    Eduardo M.

    Ruby on Rails / PHP / Javascript / Backbone.js / Angular.js

    Bolivia - Tests: 6 - Portfolio: 7

    - Software engineer with 5+ years of experience on Web, desktop and mobile development - Excellent communication skills and team player - Full Stack Open Source Software Engineer - Strong object oriented programming and design patterns skills SPECIALTIES AND EXPERIENCE - Programming languages: Ruby, PHP, Javascript, Java, Python, Objective-C, C, C++, Visual Basic, HTML, CSS - Web backend: Ruby on Rails, Sinatra, Node.js, Wordpress, MySQL, PostgreSQL, Redis - Web front-end: SASS, LESSCoffeeScript, Backbone.js, AngularJS, Underscore.js, jQuery - Infrastructure Environments: Amazon Web Services (AWS), Heroku, Digital Ocean - Development tools: SublimeText, Git, SourceTree, PivotalTracker, Atlassian Jira, Basecamp, Balsamiq Mockups - Operating Systems: Mac OS X, Linux, Windows - System administration with Unix based systems - Mobile development: Native iOS apps with Objective-C, native Android apps with Java - Desktop development: Desktop apps with Java and Python + GTK - Test Driven Development (TDD) - Agile software development - UX design PASSIONS - Learning new technologies - Open Source Software - Distributed and scalable systems design and implementation - Awesome and innovative UI design - Mountain biking

    $60.00 /hr
    3,270 hours
    4.80
  4. Alexey Pechnikov

    Alexey Pechnikov

    GIS, Computer Simulation, Algorithms & Statistics

    Russia - Tests: 6 - Portfolio: 9

    I have a Master's degree in radiophysics and electronics. In addition to fundamental mathematics and physics knowledge I specialized in computer simulation and computer vision technics. My experience ranges from research to applications. I prefer simple solutions and reliable technologies. I make compact and fast applications having a vast background in producing firmware for embedded devices with relatively small RAM, slow CPU, and very long uptime. Cross-platform programming is not hard, it is the only way :) In addition, I am experienced in full-stack development: * client-side programming (python, R, Tcl/Tk, C), * server-side programming (python, R, C, java, Tcl/Tk, shell scripting), * database programming for PostgreSQL, SQLite, OpenLink Virtuoso, * programming of algorithms, utilities and RDBMS (C, python, R, Tcl), * and some other.

    $70.00 /hr
    526 hours
    5.00
  5. Sergey Y.

    Sergey Y.

    iOS/OSX software developer

    Russia - Tests: 10 - Portfolio: 14

    Over 5 years of iOS, MAC OSX and Android apps and games development experience with Objective-C, Swift, Java, C#, Unity3d. I have successfully deployed projects that involve integration of OCR (Optical Character Recognition), Parse.com, Testflight, Dropbox, Microsoft Live, Outlook, iCloud, In-App purchases, Push notifications, HandOff, image/video processing. I'm also proficient with ASP.NET, JSON, XML, Python, Selenium. Currently I only develop applications for iPhone, iPad, iWatch and MAC.

    Groups: Coding Champs

    $50.00 /hr
    1,241 hours
    4.84
  6. Roman Chernyak

    Roman Chernyak

    Android/iOS Developer

    Russia - Tests: 4 - Portfolio: 2

    I specialize in Android and iOS app development. In addition my past projects also included working with complex UI with custom views and animations, web services and REST API's, Push notifications/Google Cloud Messaging, SQLite databases/Content providers, background services, synchronisation (Sync Adapters), and integration with social networks (Facebook, Twitter), billing and in-app purchases. I have experience in using GIT, different crash reporting and analysis tools like Crashlytics, Flurry, Crittercism. I have also successfully developed several mobile applications, among them Chess.com mobile app (as a team member) and Easy Call launcher app. My strong suit is experience in designing architecture of applications, choosing best suited technologies. I pay special attention to the code readability and expansibility. I like to produce good, bug-free code and software.

    $44.44 /hr
    1,914 hours
    5.00
  7. David C. Toledo Sanchez

    David C. Toledo Sanchez

    Developer Android, Java ,J2EE

    Peru - Tests: 10 - Portfolio: 39

    Over the last 5 years, I have developed a wide range of android applications and 2 in iphone, and I have 12 years from experience development in java and Java Applications Server . I am seeking opportunities to build new android apps. Android Skills: Advanced UI Design , SQLlite, Google Map Api1, Api2, In App Billing, Fragment, Sherlock Fragment, Facebook Api, Twitter API, Json , Rest Webservice Integration, QR Code, Background Service, GPS Service, Bluetooth Integration, Admob, OAuth, Urbain Air Ship, Push Notification, FTP Server API, Photo Gallery, RSS Feed Reader, Widget Api, WallPaper Live Framework, IME Keyboard, Audio/Video Steam, Git, SVN, LibGdx, Eclipse, etc

    Groups: Android, Application Developers Alliance

    $44.44 /hr
    8,136 hours
    4.82
  8. Sergey Lalov

    Sergey Lalov

    Corona SDK, iOS, Android Game Developer

    Russia - Tests: 3 - Portfolio: 12

    Expert in Lua and Corona SDK. Developing cross-platform mobile apps and games. iOS (iPhone, iPad) and Android. Earned Corona Ambassador title. Advanced skills in making native plugins for Corona Enterprise (Objective-C, Java, C). Using Go and Google App Engine for backend development. Great programming background: C, Python, JavaScript, PHP. Expert in networking: TCP, UDP, HTTP, REST, JSON, etc... Expert in Linux based OS (Ubuntu Server is preferable). Advanced skills in Graphics Design - Photoshop, Pixelmator and iDraw. I have a technical blog on my website, you can google it by "Spiral Code Studio".

    Groups: Corona Labs

    $55.56 /hr
    658 hours
    5.00
  9. Evgeny S.

    Evgeny S.

    Senior Software Engineer

    Russia - Tests: 4 - Portfolio: 6

    I am an independent software engineer with a very broad range of development skills and technologies. I most enjoy working in small innovative teams and with individual decision makers to help grow their ideas into mature and robust software systems based on modern technological foundations. I'm also not a stranger to big software companies, and I can be a reliable team member as well as a small group project architect/leader when needed. I have experience with the following technologies: - C++, Python, JavaScript, C#, Java - Nginx, Gunicorn, Gevent, Flask, Django, jQuery, Node.js, Apache. - MS SQL, DynamoDb, Amazon SDB, MySQL, Redis, NoSQL. - Linux, Amazon EC2, SQS, SNS, S3, RabbitMQ. - Win32 API, HTML5, Android, NDK, GTK, WinForms I'm also eager to extend my experience in cutting edge technologies and programming languages like Golang, Erlang, Nim, Rust, Haskell... I am looking for the opportunity to design and build a system from the ground up for you!

    $50.00 /hr
    2,416 hours
    5.00
  10. Munir A.

    Munir A.

    Windows, Mac OSx/iOS and Unix Developer

    Pakistan - Tests: 4 - Portfolio: 7

    I'm in love writing code since I discovered that I've passion for developing Software. I've passion for developing apps for desktop and mobile platforms. Since last more than 12 years, I've been in software industry, and have made some stuff successful which make me really proud of. Through working with more than 100 client on Up work, I've managed to increase my skill set to C++, Objective-C, Swift, JAVA, PERL. I didn't confine myself developing code for Desktops, but I also increased my knowledge to write apps for mobile platforms(iOS & Android). I love to talk about new ideas, and help people realise their idea in software industry. For last few year, I've great focus to improve code quality to help me deliver high quality product to my clients. I welcome you to have a look through my profile if you have new ideas, and looking for a reliable developer. I'm sure once you have done it, we will have a lot to talk about, and possibly work together as well.

    $45.00 /hr
    11,155 hours
    4.90