json Freelancers

Browse json job posts for project examples or post your job on Upwork for free!

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, 127 json projects are completed every quarter on Upwork.

127

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 4.64.

4.64
Last updated: July 1, 2015
More options
Clear all filters
  1. Aniruddh Solanki

    Senior Drupal Developer

    India - Last active: 1 month ago - Tests: 1

    I am a senior Drupal Developer with good years of experience in developing rich quality websites. I have developed many responsive websites and web applications for various business verticals, with the latest prevail technologies in the industry. I am also a good team player & interested in long term relationships with clients. I am well experienced with below mentioned key features: -- Drupal Configuration, -- Drupal Customization, -- Module Development, -- Theme Customization & Theme building, -- Website Architect, -- Drupal Web Services, -- Research Drupal Developer I am flexible with my working hours and happy to work with any existing freelancers. Looking forward for collaborative approach.

    $13.50 /hr
    439 hours
    0.00
  2. Evgeniy Shnyrkov

    Evgeniy Shnyrkov Agency Contractor

    Talented iOS7/iOS8(Swift)|Android App Developer

    Russia - Last active: 2 months ago - Tests: 8 - Portfolio: 4

    Hello sir, Much Thanks for your visit. I had great experiences in iOS7/iOS8/Android app development. Last 4 years, I had developed many iOS apps. Main categories is business (Specially E-Commerce) app development and social app development. Specially Ordering mobile system, e-commerce mobile system and POS mobile system is my major expertise. In additional, I had developed social networking apps based on GPS location. Your concern is my concern, If u want to implement it , I will delivery with perfect. I am able to the best app from first to completion, I will show my best ability for you. If I don't satisfied my working, I don't charge your money. Feel free contact me. All wishes.

    Associated with: evgeniy

    $44.44 /hr
    1 hours
    1.00
  3. Nick Gluzdov

    Nick Gluzdov Agency Contractor

    Web developer / UI engineer

    United States - Last active: 12/02/2014 - Tests: 1 - Portfolio: 5

    I take business ideas and bring them to life using best practices in web development, project management and team building. I am a seasoned web developer, UI engineer and tech lead with more than 20 years experience whose primary focus is in two areas: 1. Developing high-performance and scalable user interfaces 2. Planning and execution of full-cycle development process for web applications My versatile background in five industries includes coding, technical architecture, graphics, IA, requirements development, and management for large high-traffic web portals, reference, online retail, education, entertainment and media. I have demonstrated ability to accomplish projects for small/medium and fortune 100 companies on time and on budget. SKILL SUMMARY Web Development: • Front-end architecture for large applications • Complete understanding of UI, CSS-driven layout and performance • SEO-friendly semantic markup conforming to W3C standards • Cross-browser and cross-platform optimization • Unobtrusive scripting, DOM, Javascript libraries and frameworks • Future-proofing (modular architecture, MVC, re-usability, scalability, and maintainability of code) • Mobile front-end: HTML5, responsive design implementation, optimizing for mobile performance • Advanced image, code and search engine optimization. UI performance optimization (minimizing HTTP requests, variety of compression techniques, and other best practices from Google and Yahoo resulting in high performance scores) • RESTful APIs. • Intuitive, accessible and aesthetically appealing user interface design • Experienced in conducting usability studies and leveraging their results • QA Automation • Server-side development Management: • Managing full-cycle web development, including business analysis, information architecure, UI/X design, technical architecture, coding, and quality assurance • Building and running a successful web technology solutions company and multiple virtual teams • Agile, Scrum, Trello, Basecamp, Redmine, Rally, Quality Center Tools: Aptana, IntelliJ, Sublime Text, Firebug, Chrome/Safari Developer Tools, YSlow, PageSpeed, webpagetest.org, UglifyJS, htaccess, nginx, Apache Jakarta Jmeter, Charles, HTTPWatch; Diff/Merge; Photoshop, Fireworks, Balsamiq Mockups, Visio, Illustrator, InDesign, Acrobat Pro; Flash, Encore DVD, Premiere, FinalCut; Unix shell. Omniture and GoogleAnalytics tracking. Grunt, BrunchIO, AssembleIO. Languages: • Markup: HTML5 (forms canvas, video, audio, localStorage, geolocation), HTML/XHTML, Haml • Styling: CSS2x/3 (gradients, transforms, transitions, animations, SCSS, SASS, LESS, Stylus) • Javascript: libraries and frameworks (ECMAScript 5.1 standards, JSHint, JSLint, Underscore.js, Backbone.js, jQuery, jQuery UI, jQuery Mobile, jQuery layout, other jQuery plugins ecosystem) • Web graphics: SVG (Raphael.js, D3.js), PNG-8/24, JPG, animated Gif • Microformats (vCard, hCard, hProduct, hCalendar) • Layout frameworks (Bootstrap 2, 3, Zurb Foundation) • Improving site performance (YSlow, PageSpeed, UglifyJS, .htaccess, nginx, images compression), Apache Jakarta Jmeter • JSON, JSONP, XML • Templating engines (Slim, Haml, Jade, FreeMarker, JSP, Smarty) • Server-side code: Node.js, Ruby on Rails, LAMP, PHP (Yii) • Other: XUL; RegEx; MongoDB, MySQL, AngularJS, Grunt, Gulp Operating Systems: Mac OSX, Windows XP/Vista/Server, Ubuntu Linux. Technologies/Concepts: • Content Management Systems: cmScribe, WordPress, Expression Engine, Sharepoint 2010, Drupal 7, RedDot • Source Control Systems: Git, SVN, TFS • API: Google web/image search, Facebook, LinkedIn, Twitter, Twitter cards, Google Analytics, OpenX, Zendesk, Geonames, Google Drive, SkyDrive, Zoho, Google Location Services • Firefox Extensions

    Associated with: Speed and Function

    $50.00 /hr
    0 hours
    0.00
  4. Jason Pickering

    Jason Pickering Agency Contractor

    Expert Web Designer & Developer

    United Kingdom - Last active: 5 months ago - Tests: 1 - Portfolio: 8

    I'm a London web developer who has worked in wide range of roles including design and back-end development (HTML, CSS, jQuery, PHP, SQL). I experience working with small businesses and startups, working on a number of custom websites and SaaS projects in the past. I have no problem working quickly but I always aim for pixel perfect. If you want to have a look at my website is: www.lovetheidea.co

    Associated with: lovetheidea

    $72.00 /hr
    0 hours
    0.00
  5. Alexander Shchyhlinski

    Alexander Shchyhlinski Agency Contractor

    Java expert with liferay/js experience

    Belarus - Last active: 11/12/2014 - Tests: 1

    I'm strong Java developer with a big experience in developing on Liferay platform. Also I have experience in Lucene/Solr. I believe my strong points are my Creativeness and Punctuality. My goal is a meeting your requariments with your deadline. When working on a new project, I prefer to speak with the client, it performs me to receive a deep understanding and vision of the project.

    Associated with: Winsoft Software Development

    $22.22 /hr
    0 hours
    0.00
  6. Dmitry Samoilovich

    Dmitry Samoilovich Agency Contractor

    Web Developer ( PHP: Zend Framework, CodeIgniter, Drupal, Joomla )

    Belarus - Last active: 3 months ago - Tests: 4 - Portfolio: 4

    My core strength is cross-platform mobile application development for both iOS and Android platforms and WEB technologies under PHP. I work with team of professionals which is calleed ROOTin Ltd. I am located in Eastern Europe, Belarus, Minsk (GMT + 3). Our core strength lies in iOS, Android, and Windows Phone app development. We also provide services in web integration via the use of PHP: Zend Framework, CodeIgniter, Drupal, Joomla, WordPress, Magento, JavaScript and development of sites and other web solutions. ================== Our process: ================== -Consultation -Documentation -Prototyping -Contract -Design -Development -Testing -Publishing ================== I specialize in: ================== - iPhone/iPad app development ( Objective C/C/C++, Swift ) - Android app development ( Java, C/C++ ) - Windows Phone development - Game development (Native Platform, Cocos 2D (X), Unity3D) - Web development (Yii framework, CakePHP, Zend Framework, CodeIgniter, HTML (5) / CSS ) - UI/UX design (Photoshop) - Documentation / Prototyping -QA (Automated, Manual testing) ================== Have experience in: ================== - TelAPI SDK - Twillio SDK - Parse.com - Phonegap - testflightapp.com SDK - Google maps SDK - Corona SDK - Facebook SDK - Twitter SDK - LinkedIn SDK - Google+ SDK - QuickBox SDK - Vuforia SDK - Xamarin SDK - QT/QML SDK - Cordova SDK - Titanium SDK - NDK SDK - BLE - Bluetooth - Xamarin - WiFi

    Associated with: ROOTin LTD

    $25.00 /hr
    0 hours
    0.00
  7. Artem Nikolaev

    Artem Nikolaev Agency Contractor

    Web Developer ( PHP: Zend Framework, CodeIgniter, Drupal, Joomla )

    Belarus - Last active: 3 months ago - Tests: 4 - Portfolio: 4

    My core strength is cross-platform mobile application development for both iOS and Android platforms and WEB technologies under PHP. I work with team of professionals which is calleed ROOTin Ltd. I am located in Eastern Europe, Belarus, Minsk (GMT + 3). Our core strength lies in iOS, Android, and Windows Phone app development. We also provide services in web integration via the use of PHP: Zend Framework, CodeIgniter, Drupal, Joomla, WordPress, Magento, JavaScript and development of sites and other web solutions. ================== Our process: ================== -Consultation -Documentation -Prototyping -Contract -Design -Development -Testing -Publishing ================== I specialize in: ================== - iPhone/iPad app development ( Objective C/C/C++, Swift ) - Android app development ( Java, C/C++ ) - Windows Phone development - Game development (Native Platform, Cocos 2D (X), Unity3D) - Web development (Yii framework, CakePHP, Zend Framework, CodeIgniter, HTML (5) / CSS ) - UI/UX design (Photoshop) - Documentation / Prototyping -QA (Automated, Manual testing) ================== Have experience in: ================== - TelAPI SDK - Twillio SDK - Parse.com - Phonegap - testflightapp.com SDK - Google maps SDK - Corona SDK - Facebook SDK - Twitter SDK - LinkedIn SDK - Google+ SDK - QuickBox SDK - Vuforia SDK - Xamarin SDK - QT/QML SDK - Cordova SDK - Titanium SDK - NDK SDK - BLE - Bluetooth - Xamarin - WiFi

    Associated with: ROOTin LTD

    $25.00 /hr
    0 hours
    0.00
  8. Oleg Suzanovich

    Oleg Suzanovich Agency Contractor

    Web Developer | PHP | CSS3 | JS | Yii | Wordpress | EXPERT

    Belarus - Last active: 3 months ago - Tests: 3

    Do you need a reliable, hard working, highly professional web-developer with deep knowledge of: PHP - especially OOP, MVC; CodeIgniter, Kohana, CakePHP, Laravel frameworks MySQL, SQLite db WordPress(WooCommerce), Joomla!, Opencart, Drupal Javascript ( jQuery, jQuery UI ), AJAX, JSON APIs (Google Maps, Google Places, Google+, Twtter, Facebook, PayPal etc) numerous libraries and tools, web services, VCS (git, svn), tasks management systems able to -- create fast, reliable and scalable applications, -- work with your *nix server (CLI, SSH), -- tweak Apache configs, -- write beautiful code and figure out any bug that troubles you, -- make code and database design solutions, -- work sole or as a part of a team, communicating efficiently Then contact me.

    Associated with: Bubble

    $20.00 /hr
    0 hours
    0.00