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. Bhushankumar L.

    Bhushankumar L.

    Full Stack Web Developer

    India - Last active: 5 days ago - Tests: 10

    My major competency is Node.js, Python, and Java for building interactive web-sites and deployment using AWS for business and management purpose. I can provide services in next scope of technologies: Programming languages: Python, Java, JavaScript Standards: XML, Ajax, JSON, REST, OOP, MVC Python Frameworks: Django, Web2Py, Bottle, Flask Java Frameworks: Struts, Spring, Hibernate JS Frameworks: JQuery, Angular JS, EXT Js, Node.js + Sails.js , Flot Charts, Google Charts UI Frameworks: JQuery UI, Twitter Bootstrap Databases: MongoDb , MySQL, SQLite, SQL Server Caching Data structures: Redis, Memcache Web API: Google Analytics, Google Oauth, Google Map, YouTube API. Apache TIKA, Apache Lucene, Apache SOLR, Yahoo Contacts, Edmodo API, Facebook API Payment Gateway: PayPal, Stripe Version Control: Mercurial, Git, SVN Designing Tools: Rational Rose, Edraw Max Tracking Tools: JIRA, Mantis CI Tools: Travis, Shippable, Jenkins Operation Systems: Windows, all Linux distribution Server: Amazon Web Services, Apache HTTP, Apache/Tomcat, Samba File Server, Nginx, VMware, DNS Security: VPN, SSH, SSL/TLS Other Skills: Google Web Master Tool, Google Analytics Tool, Google Chrome Webstore App Development My services include development of web sites and web based application, customization of existing solutions, architecture design (all server, code and database levels), bug fixing, technical support and consultations. My work style is based on details, quality and responsibility. Main rule of my work is `Do your work in same way like you would like it to be done for you`. I'm opened for communications with hires because I trust that this guarantees that all questions will be discussed in details and work will be done in time. I am giving you to done work on time with your requirements. Please fill free to ask for demo if needed. Thank you, Kind Regards, Bhushankumar L.

    Groups: Pligg

    $22.22 /hr
    108 hours
    4.85
  2. Ferenc Knebl

    Ferenc Knebl

    Senior Mobile Developer for iOS8 and Android, Game, Parse.com

    Hungary - Last active: 17 hours ago - Tests: 9

    When I am really happy? I love to hear: "You are doing a great job!" Over the last 10 years, I have been working in IT fields. I got very systematical knowledge and skills of producing software products throughout the analysis of requirements, system design, database schema design, construction of code, deploying and testing. Since 2010 I have started the iOS programming and become very familiar about its development. I am able to work for Android mobile app development as well. So now I am very confident to work with potential clients with various mobile app specifications. I will do the best of my abilities and knowledge to build the apps for them. I love to skate where the puck is going to be, not where it has been. Followings are my major skill sets: ✇ Mobile app & game development ➢ PhoneGap : Cordova, Ionic, Jquery Mobile & Angular Mobile UI ➢ Social Networking, Entertainment, Lifestyle, Education, Business Apps ➢ Google Map, Foursquare, Geolocation, GPS, Open Street Maps ➢ Parse.com, JSONKit, RESTKit, TestFlight, AFNetworking ➢ ApplePay, Stripe, Authorize.Net, Paypal, SagePay,WePAY ➢ XMPP, QuickBox, VSee, OpenTok, Skype, WebRTC ➢ Cocos-2D, Box2D, 2D-x, Unity 3D, Admob, Revmob, Chartboost, Flurry ➢ Push notification(iPhone/Android), Local Notification on Mobile app
 ➢ Facebook, Twitter, Linkedin, Instagram, Youtube, Pinterest, Vimeo ➢ Barcode, QR scanner (iPhone/Android)
 ✇ Web Development ➢ CarrierWave, Kaminari, HAML, SASS, Jammit ➢ Laravel, Symfony2, CodeIgniter, Yii, Zend ➢ Parse.com, Windows Azure, Amazon Web services, Heroku ➢ BackboneJS, AngularJS, EmberJS Best Regards. Ferenc.

    $40.00 /hr
    47 hours
    5.00
  3. David B.

    David B.

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

    Netherlands - Last active: 17 hours ago - Tests: 17

    *** 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, Xamarin, .NET - Android Native (Studio/Eclipse): Java, Xamarin, .NET - Hybrid Apps: Phonegap by Ionic, Cordova SDKs, JQM, Kendo UI, Angular Mobile UI - Mobile Games: Cocos2D, Cocos2DX, Unity3D, Board SDK *** Mobile Application Services Support *** - Analytics and Testing : Google Analytics, Apptentive, KIF testing framework - Back-End: JSON-RESTful APIs as well as 3rd Party SDK integration like Parse, Twillio - Services: Cloud, FB, Twitter, LinkedIn, Twitter, Google, Photo & 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

    $70.00 /hr
    346 hours
    5.00
  4. Vigorous Web

    Vigorous Web

    Web Developemt, SEO, Data Entry Services

    Pakistan - Last active: 3 days ago

    Vigorous Web conveys everything you need to communicate effectively on the web. We understand how users interact with digital media, so we have usability at the foundation of our services. We give great importance to fresh ideas and crystal clear goals. Vigorous Web developing team is made up of multi-talented illustrators, designers, writers and software developers, delivering the right mix of creative finesse. Our team can create everything from single-page online brochures to interactive database applications for large companies or applications. We build and maintain high quality web site design and e-commerce web development solutions for a wide a range of businesses and individuals. We provide professional-level programmer and customized web development solutions in PHP, Open Source, Wordpress, Drupal, CakePHP, YII, Mobile UI, Responsive Sites, ASP, ASP.Net, AJAX, ATLAS, Flash Actions Script Programming, JAVA etc to our clients. We provide SEO and Data Entry services.

    $8.00 /hr
    10 hours
    5.00
  5. Shadab Hussain

    Shadab Hussain

    Expert Java Developer

    Pakistan - Last active: 2 months ago - Tests: 1 - Portfolio: 8

    Experienced Software developer with skills Java,XML, C#, Android and C++. I have over 3 years of web development experience in JavaEE, ASP.NET and PHP platforms with different databases SQL Server, Apache Mysql, Oracle and Derby. • Strong OOP and Software engineering concepts. • Very Good Knowledge of Java SE & JSF, JSPs and Servlets • Basic knowledge of Spring Framework • Excellent at application programming in Java and data structures • Have developed Software application following whole life cycle i.e. from requirement gathering to implementation phase keeping agile development practices in mind. • Very good understanding of databases and database modeling • Extensive knowledge of data structures and have implemented myself • Can Model classes from specification and very good at Project Documentation • Very good knowledge of XQuery and SQL • Very good experience of working with RSS and Media RSS • Worked with relational as well as NoSQL Databases • Developing Electronic Medical Record System (Medical Drop Box) according to standards of HL7 as my Final Year project of undergraduate degree. • Excellent communication skills in English both oral and written.

    $22.22 /hr
    5 hours
    4.97
  6. Anton P.

    Anton P.

    Senior PHP developer

    Ukraine - Last active: 5 days ago

    More than 7 years in Web Development, Mostly specialized on back-end and high load, but also good at front-end! System administrator in the past I am able to set up and manage any complex server-side solutions, development enviroments and deployment process.

    $25.00 /hr
    526 hours
    5.00
  7. Johanne Hansen

    Johanne Hansen

    iOS & Social & XMPP Professional

    Norway - Last active: 13 days ago - Tests: 9

    " Quality Service within deadline " I've got more than 9 years in IT. I've learned professional education and have got plenty experience. Especially I'm an expert in iOS development, social platforms' api, XMPP and WebRTC. I've developed more than 40 apps. I develop in a professional way, not amateurish. I guarantee the quality of my work. I take serious view of communication and will provide you daily update for the project. If you are looking for professional developer for your app, then I'm the one. My key skills and abilities include + iOS programming languages (X-code, Swift, Objective-C) + iOS SDK (Foundation, UIKit, Core Data,AVFoundation, MoviePlayer,Quartz Core,Core Animation, etc) + Various social platform and their api including Facebook, instagram, twitter, etc. + Text messaging and video/voice chatting - XMPP, OpenTok, Pusher, APN + Networking framework - AFNetworking, Web RTC, Socket.io TCP/IP + Map integration(GPS Location) / Google Map API, MapKit Framework + e-Commerce payment system - Paypal, Authorize.net, Stripe, Saleforce, card.io + ad serving or ad network SDKs (iAds, Google admob, etc) + Web service develop and integrating - JSON RESTful API, Parse.com, Node.js, Ruby, Mean + Various library development using C/C++ + Team Work - SVN, GitHub, Bitbucket

    $50.00 /hr
    10 hours
    5.00
  8. Marco P.

    Marco P.

    Rockstar, Full Stack Mobile App Expert - iOS, Android, API integration

    Netherlands - Last active: 5 days ago - Tests: 9

    Availability: Full time hard working 60+ hrs / week 5+ years experience for both of iOS, Android native app development. Published 50+ successful apps with good quality on iTunes Appstore and Google Appstore. 12+ years experience on coding and software engineering. Especially, powerful experience with Parse.com, OpenTok and GraceNote. All environment including all test devices including new iPhone6, iPhone6+ also for mobile app programming. Already experienced on developing iOS 8 apps with new Swift language and XCode6. I have already developed full iOS application from scratch by means of Swift language. Nowadays, I have checked the WatchKit for Apple Watch mobile app programming and fully ready fro developing Apple watch apps using XCode 6.2 with iOS 8.2 SDK beta. I usually works on client's time-zone, so you may contact me any time you want during interview and development. Especially, I used to work full time on US time-zone with US clients. It is my main working time. I enjoy hardworking for full-time jobs to make eye-popping perfect product with high technology and quality by means of my senior level mobile app development experience, skill, my creativity and my youth.

    $45.00 /hr
    2 hours
    5.00