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, 118 json projects are completed every quarter on Upwork.

118

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: July 1, 2015
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  1. Jaskiran K.

    Jaskiran K. Agency Contractor

    iOS (iPhone/iPad) expert in Swift / Parse /JSON / XML / API / Android

    India - Last active: 1 day ago - Tests: 4 - Portfolio: 13

    Absolutely dedicated to creating top notch mobile applications for my clients, I am a skilled programmer with 4 years of development experience in developing iphone and Android Mobile applications. I like complex and diverse assignments that allows me to learn new things constantly. _____________________My Technical Skills Swift , Objective-C 2.0 , IPhone iOS-2.X/3.X/4, IDE - XCode-3.X , Interface Builder-3.X, Instruments. _____________________I specialize in : - iOS7.0, 8.0, Android - Objective-C, Swift, Autolayout - PHP, Javascript, CSS3, Json, XML - SQL, Coredata - Xcode(5.1.1, Xcode6.1), SDK FrameWork - Custom API (FaceBook SDK,, Twitter API, ,Instagram API, phpfox API, parse API, FireBase, Foursquare , Amazon S3) ____________________Backend skills - Strong command on versioning control system like Git, branching, tags etc. - Java EE - Strong OOP concepts. - Design Patterns. - Database architecture and management. - Google Cloud Platform - App Engine - Objectify library. - Creating and managing RESTful API using App Engine. - Writing clean and readable code with comments. - Working with other team members. - Issue tracking systems like JIRA, Trello. - Image and Videos caching, manipulation, pagination and optimization. - Strong knowledge of push notification technologies.

    Associated with: CS Soft Solutions Pvt. Ltd.

    $18.00 /hr
    1,242 hours
    4.77
  2. Vitaly Sas

    Vitaly Sas

    Expert Android developer

    Belarus - Last active: 7 days ago - Tests: 3 - Portfolio: 3

    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.

    $50.00 /hr
    1,453 hours
    4.90
  3. Viktor Naryshkin

    Viktor Naryshkin

    Windows Phone expert

    Ukraine - Last active: 1 day ago - Tests: 3 - Portfolio: 20

    Tons of successfully developed Windows Phone projects. I'm TOP-rated Windows Phone expert on stackoverflow (http://stackoverflow.com/users/820813/ku6opr) and I'm open for new projects I'm degreed in Computer Science and have 5 years of background in C#., NET , Silverlight, WPF (oDesk verified). I'm interested in Windows Phone, Windows Phone Universal apps that target Windows and Windows Phone and Windows 8 projects If you need a skillful mobile developer, I will be glad to work with you. I'm provide safe outsourcing services, secure processes, and top quality results for your business. Technologies: Windows Phone 8 / 8.1 Windows Store / Windows Phone 8.1 Universal app Windows Store Strongest skills: A deep familiarity with C# and XAML Experience working with push notifications, live tiles and Windows Phone SDKs Experience with third-party libraries and APIs Solid understanding of the full mobile development life cycle

    $33.00 /hr
    482 hours
    4.98
  4. Aleksandr Kondrik

    Aleksandr Kondrik

    Senior iOS Developer

    Russia - Last active: 1 day ago - Tests: 5 - Portfolio: 7

    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
    246 hours
    5.00
  5. David B.

    David B.

    Senior Mobile App (iOS/Android) & Server Back-end Developer

    Netherlands - Last active: 3 days ago - Tests: 17 - Portfolio: 16

    *** Your Journey into Native Mobile App Development (iOS/Android) starts with me *** Full-Stack Native Mobile Apps & Web Services Expert Full Time support(40~60 hrs/week), Daily progress report & Skype live chat Long-term relationship contract & Money-back guarantee *** iOS/Android Application Development *** - iOS Native (XCode): Objective-C, Swift, Cocoa Touch, iOS7 & iOS8 Kitkat - Android Native (Studio/Eclipse): Java - Hybrid Apps: Phonegap by Ionic (Angular JS), Cordova SDKs, JQM, Kendo UI - Xamarin (.NET) - Mobile Games: Cocos2D, Cocos2DX, Unity3D, Board SDK *** Mobile Application Services Support *** - Analytics and Testing : Google Analytics, Apptentive, Flurry, KIF testing framework - Back-End: JSON-RESTful APIs built on PHP MVC Frameworks for CRUD as well as 3rd Party SDK integration like Parse, Twillio - Services: Cloud, iBeacon, FB, Twitter, LinkedIn, Twitter, Google, Audio/Video (Wowza) Streaming *** Web Services Support *** - Main Tools: PHP, MYSQL, HTML5, DHTML, JQuery, CSS3 (Bootstrap & Responsive & Parallax) - JS Templates: AngularJS(Ionic), BackboneJS, NodeJS(XMPP), RequireJS - Common Templates: WP, Joomla and PHP MVC frameworks : CodeIgniter, Laravel, CakePHP, Yii and Kohana - Ecommerce: Magento, OpenCart, WooCommerce, Shopify and Prestashop I work as individual, supporting full time. I'm here to analyze your ideas and requirements and offer our vision of project realization. Rough quote will be ready within 48h. If it is acceptable for you, I'll prepare detailed project development plan indicating timeline and budget. I always make sure to bring you upon successive results of highly and creatively qualified results before your deadline and guarantees refunding for any unsuccessful results or issues which are responsible for me. I am seeking an opportunity to become a business partner with long-term relationship forever.

    Groups: Application Developers Alliance

    $77.78 /hr
    599 hours
    5.00
  6. Martin P.

    Martin P. Agency Contractor

    Mobile Applications Architect

    United States - Last active: 4 months ago - Tests: 3 - Portfolio: 8

    I am a professional iOS developer. I provide high quality development services for iPhone and iPad. I have more than 4 years of professional development and more than 10 apps submitted to the Appstore. I create a project plan for every project and I always keep the client up to date with the project progress. I have the knowledge to build an app from the ground up and to submit it to the Appstore. My work is a synonym for quality !!!

    Associated with: Samsourcing

    $44.44 /hr
    433 hours
    5.00
  7. Timo T.

    Timo T.

    Java Expert

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

    I am a Finnish Java expert with total of 18 years of work experience. I have worked since 2003 as IT-freelancer for almost 20 companies around the world. I have been part of about 50 software projects, small, large and everything in-between. Before my freelancer career I worked for Nokia Mobile Phones company 1995-1997 and also for a couple of smaller Finnish IT-companies. I have worked also in Germany 2000-2002. Nowadays I live most of the year in tropical South East Asian countries and I do remote work IT-projects.

    $42.00 /hr
    5,766 hours
    4.95
  8. Mahesh J.

    Mahesh J.

    Web Developer/ WebDesigner

    India - Last active: 1 day ago - Tests: 14 - Portfolio: 2

    I have more than 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
    746 hours
    5.00
  9. Borislav M.

    Borislav M.

    Full-stack web developer skilled in Javascript

    Macedonia - Last active: 1 day ago - Tests: 3 - Portfolio: 2

    I'm a full-stack web developer using JavaScript from end-to-end. I have 4+ experience in developing websites from scratch, so I'm very proficient in HTML5, CSS3 and JavaScript. Apart from client side development I have also experience in developing web services and RESTful apps from scratch and I'm familiar with technologies like token based authentication and authorization (oAuth 2.0) and creating schema-less databases (noSQL). My technology of choice is Node.js and MongoDb for the server side, and Backbone.js + Marionette and others for client side development of modern web applications.

    $20.00 /hr
    581 hours
    5.00