json Freelancers

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json Job Cost Overview

Typical total cost of Upwork json projects based on completed and fixed-price jobs.

Upwork json Jobs Completed Quarterly

On average, 126 json projects are completed every quarter on Upwork.

126

Time to Complete Upwork json Jobs

Time needed to complete a json project on Upwork.

Average json Freelancer Feedback Score

json Upwork freelancers typically receive a client rating of 4.65.

4.65
Last updated: May 1, 2015
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  1. Vitaly Sas

    Vitaly Sas

    Expert Android developer

    Belarus - Last active: 5 days ago - Tests: 3 - Portfolio: 2

    - oDesk Verified Mobile Developer See the badge on the right of my profile for more information I specialize in developing Android apps and have over 4 years of experience in commercial app development. I'm looking for a interesting projects to do a really good job. Challenge me and I'll do my best to create high-quality app in order to meet your wishes. I look forward to working with you. Thank you for reviewing my oDesk resume. Best regards, Vitaly Sas.

    Groups: Upwork Verified Mobile Developers

    $33.33 /hr
    1,256 hours
    4.90
  2. Aleksandr Kondrik

    Aleksandr Kondrik

    Senior iOS Developer

    Russia - Last active: 12 days ago - Tests: 5 - Portfolio: 5

    Hello, With 3+ year of experience in I get expertise in iOS and .Net development. I love develop apps. I like complex and diverse assignments that keep my mind sharp and allow me to constantly learn new things. Have some apps in AppStore: 1) iDrom - mobile client for site www.drom.ru 2) Autoservice 717 - business application for car service

    $33.33 /hr
    186 hours
    5.00
  3. Csaba Toth

    Csaba Toth

    Senior Mobile Developer for IOS8 (SWIFT) & Android, JSON API, Parse

    Hungary - Last active: 1 day ago - Tests: 9

    Hello *****Best Quality and Fast Speed******* I am a talented Mobile application developer. I have a good experience of Mobile application and games. Also, I have developed a lot of Desktop applications and web development. Mobile device platform: - iPhone 6 plus, iPhone 6, iPhone 5s, iPhone5, iPhone4s - iPad Air, iPad4, iPad3, iPad mini - Google Nexus 5, Samsung Galaxy S5, S4, S3, HTC One My skill-set: - Native: iOS, Android, Windows8 (Objective-C, Swift, Java, C#), JNI, NDK (C/C++) - Hybrid: PhoneGap, Xamarin, Titanium (HTML5, jQuery Mobile, C#) - Web service: XML/JSON, REST/SOAP - Cloud backend: Parse.com, Parse SDK, Parse REST, Parse Cloud Code, Amazon S3 EC2 AWS, Firebase, Twillio, Plivio - Chat & Messaging Engine: XMPP, Jabber, OpenFire, OpenTok WebRTC, Ejabberd, Erlang - Video/audio/image processing: OpenCV, GPU Image, CoreAudio, EZAudio, Pitch Control, Bass, AVFoundation - Video/audio streaming, codec: Wowza, Red5, H.323, MPEG-4 - VOIP, Cloud Communication: Twillio, Heroku, Tokbox - Speech recognition, text-to-speech, Siri, OpenEar - HTML5, PHP, ASP, JSP, C# and their frameworks - MySQL, SQLite, Oracle, SQL Server, ODBC - Facebook, Twitter, Linkedin, Instagram, Youtube, Pinterest, Vimeo - Google Map, Foursquare, Geolocation, GPS, Open Street Maps - Cocos2D, OpenGL, Corona, Unity3D, Box2D - Game Center, In-App Purchase, RPG server - iAd, Adwirl, Revmob, Admob, Chartboost, Tapjoy, Flurry, Testflight - Cloud services: iCloud, Rackspace, Zoho CRM, Salesforce, Azure, AWS, EC2, Dropbox - Mobile Game Genre: Casino Slot machine, Flappy bird, Poker, Chess, RPG, Arcade

    Groups: Application Developers Alliance

    $40.00 /hr
    161 hours
    5.00
  4. David Mulder

    David Mulder

    Senior Engineer for Mobile APP(IOS&Droid).

    Netherlands - Last active: 7 hours ago - Tests: 10

    Hello, I'm David, highly experienced Mobile Engineer. I have 6+ years of rich experience in Mobile app&Web development. I have been working as a mobile developer since I graduated university. Although android and ios version and device are getting different every year, I'm the person who is eager to learn new tech so learnt new industry technology as soon as it was born. I can start to work on your project right away and I can dedicate my full time on it to complete it asap. My profile at Linkdln: https://www.linkedin.com/in/davidmulder My works at apple store and google play store: https://www.dropbox.com/s/zipmcx7xa7e18es/MobileApps%28IOS_Android%29.pdf?dl=0 Thanks for your reading me fully.

    $55.56 /hr
    3 hours
    4.98
  5. Cristian c. H.

    C# .Net Programmer with experience in MVC,Web-API,AngularJS,Bootstrap

    Romania - Last active: 07/24/2013 - Tests: 1 - Portfolio: 7

    I've been working in the IT development for the past 5 years. Over the last 2 years am working with C# and .Net technologies using MVC and Web-API frameworks for different sites and applications. On the database side I'm using for all projects either Microsoft SQL Server either MongoDB or MySQL. On the client side I have good experience with HTML5, Javascript, AngularJS and Bootstrap (2.x and 3.x). I also have some experience with WPF, w or w/o MVVM framework.

    $37.00 /hr
    46 hours
    4.87
  6. Mahesh J.

    Mahesh J.

    Web Developer/ WebDesigner

    India - Last active: 1 day ago - Tests: 14 - Portfolio: 3

    I have 3.5 years of Experience in Software Development. I have strong Software development skills with experience in Web Application and Web Development in N-tier Client-Server based Internet technology, intranet portal design/development; Web based data reporting system, workflows, Framework development for Internet application. My experience has stretched across various programming languages including C#, ASP.NET, Ajax and Jquery. I am also well versed in RDBMS concepts. My skill sets include the following: Web Design Skills - HTML - CSS - Bootstrap - Psd To Html - Adobe photo shop cs3 Development Skills & Technologies - ASP.NET - MVC 3 - 4 - 5 - C# - AJAX - Web Service - JavaScript - J query - XML - Angular js - WebApi - Json Database Expertise - SQL Server 2005-2008 - LINQ - Entity Framework Deployment, Troubleshooting at Client server, Data Migration, Fix issues at Client end. Proficient in Web Designing, Web Portals, Web Applications, Parallel Programming

    $5.56 /hr
    603 hours
    5.00
  7. Stefan Bowman

    Stefan Bowman

    PHP, web development and Multimedia

    Italy - Last active: 6 days ago - Tests: 5

    Since 1989 I have been an informatic teacher, qualified lecturer and freelance consultant for many school institutes and enterprises in Milan, Lodi and their surroundings, taking care of such issues as server side software programming, security and installation of Linux & SUN Solaris web and intranet servers. I’ve been Technical Product Manager in Digivision srl, Multimedia and software development lecturer for “CFP Canossa di Lodi” and SAE institute in Milan, recently I have been taking care of Value Added Services security and software development. Good English, French and Italian , written and spoken. I have a in depth knowledge of web sites and multimedia products authoring and programming, being also product manager for Digivision Srl about various audio and video digital compression technologies. I am an Internet software developer producing dynamic and interactive Web pages, search engines, e-commerce sites and web applications on UNIX, LINUX and Microsoft NT server, using PHP, ZEND FRAMEWORK, Mysql, Oracle, XML, JSON, Flash ActionScript, Director Lingo and others. Good level of APACHE, PHP, MYSQL, FTPD, SAMBA, NESSUS, TRIPWIRE, IPTABLES configuration and installation, set up of apache based reverse proxy in mod security for Linux and Solaris8

    $35.00 /hr
    432 hours
    5.00
  8. Amit Kumar

    Amit Kumar

    ASP.NET and MVC Software Engineer

    India - Last active: 2 days ago

    Over the last 4+ years, I have developed a wide range of websites using HTML, .NET /mvc, using sql server 2008/2012 in C# ,VB and PHP using my-sql including sites for startup companies and small businesses. My core competency lies in complete end-management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business. I also have great experience in the following areas: - Javascript/ Jquery/ Ajax & jQuery, jQuery UI - HTML/ XHTML/ CSS - JSON/ XML - MS SQL server 2005, 2008,2012 - Visual Studio 2.0/ 3.0/ 3.5/ 4.0/5.0 – ASP.NET/ VB/ C# - .MVC 2.0/ 3.0/ 4.0/5.0 Razor - Web services, LINQ - Entity Framework - APIs (Twitter, Facebook, Google+, Instagram, LinkedIn,Long Tail) - Core PHP - My SQL Server -Kendo UI -Telerik .NET UI Controls -SVN/TFS

    $11.00 /hr
    24 hours
    5.00
  9. Alif K.

    Alif K.

    Senior IOS/Android +iBeacon/BLE Expert

    Malaysia - Last active: 1 day ago - Tests: 5

    Hi. My name is Alif and nice to introduce me to you I have 8+ years experience in IOS/Android app development and I have good skills and high ability in many fields of mobile app development During those days I worked as developer, lead manager as well as consultant so that I think I can be some help to you I'm here to make your dream come true and satisfy all your requirement perfectly My motto is to be honest and to be responsible and to keep the promise I will try my best to meet your needs and I hope you give me a chance to work for you I have much experience and skills in following types of IOS/Android app development -Dating App(Match function, Gps tracking,Chat, VOIP, IAP, Push notification) -Media sharing App(Uploaidng/Downloading photos, videos, broadcast to friends) -Third party Integration(Facebook, Twitter, Instragram) In addition, Strong backend knowledge(parse, amazon) and Web programming experience Thanks

    $55.56 /hr
    1,681 hours
    5.00
  10. Ulrik Damm

    Ulrik Damm

    Solid iPhone/iPad/iWatch/iMac App Expert

    Denmark - Last active: 3 days ago - Tests: 4

    I have rich experience in the development of iOS and android. If you are looking for a highly skilled iOS & Android development expert with depth of knowledge, professional attitude, excellent communication and the highest code quality, I am right person you are looking for. http://ufd.dk http://robo.cat On the development side of things, I am fastidious and passionate. All of my work is delivered ahead of scheduled and is crafted with the utmost quality. If you work with me you can get excellent results for short time. I will satisfy your need with my skill. I love working with you.

    $38.89 /hr
    40 hours
    5.00