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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, 122 json projects are completed every quarter on Upwork.

122

Time to Complete Upwork json Jobs

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Average json Freelancer Feedback Score

json Upwork freelancers typically receive a client rating of 4.67.

4.67
Last updated: August 1, 2015
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  1. Adrian Janek

    Adrian Janek

    Experienced Web/Mobile Guru

    Poland - Tests: 9

    I am a senior Web/Mobile developer who has 6 years of experience in this field. My aim is to set up your business, structure it, bring to life and make successful. Later to expand it and bring to an entirely new level of performance. I generate new fresh ideas and implement them, design the concepts, system, interface and plan the process flow. Based on the business needs, to gain the best quality and performance, incredible user experience and full customer satisfaction. About my skill set: 1) Web Development - from scratch development; - CMS based; - Framework based; Symphony 2, Zend Framework, CakePHP, Yii, Codeigniter, Joomla, WordPress, Drupal, Magento, Prestashop, Opencart, SalesForce using: HTML/HTML5, XHTML, Javascript, AJAX, jQuery, ExtJs, Bootstrap, CSS2/CSS3 PHP, Perl, Python Oracle, MySQL, MariaDB, MongoDB, MSSQL Ruby on Rails. 2) Mobile development - iOS, Android (Objective-C, Swift, Java, C/C++) - PhoneGap, Titanium, Xamarin, (HTML5, jQuery Mobile, C#) - Cloud backend: Parse, Parse REST, Amazon, Firebase - Video/Audio/Image processing: OpenCV, GPU Image, CoreAudio - MySQL, SQLite, Oracle, SQL Server - Instagram, Youtube, Pinterest, Vimeo - Google Map, Foursquare, Geolocation, GPS, Open Street Maps - Cocos2D, Box2D, Unity3D, OpenGL, Corona - Game Center, In-App Purchase, RPG server - iAd, AdMob, ChartBoost, MoPub, Tapjoy, Flurry - JIRA, RedMine, BaseCamp, Github, BitBucket, SVN - Cloud services: iCloud, Salesforce, AWS, EC2, Dropbox I will do my best to give you the best satisfaction. Thank you, Adrian

    $35.00 /hr
    206 hours
    5.00
  2. Albert P.

    Albert P.

    Expert iOS/Android Developer with Webservice experience

    Poland - Tests: 6 - Portfolio: 8

    Hi, Everyone. I am an expert Mobile App developer as well as Web Backend Developer. I have been working for the past 6+ years developing iOS(iPhone/iPad) apps and Android apps, including programming and graphic design. I love doing quality work and I am so easy to work with. I can get a lot done in a short time and I 'd welcome the chance to complete a high quality project for you. My Skills include as followings; * Social Media/Networking/Sharing App, * Google Map, GPS Location App * MMS, SMS, Push Notification App, * Hotel/Restaurant Booking App, * Barcode/QR Code Scanning App, * Quiz, Running, Endless, Puzzle, Fight Game etc. If you work with me, I make the promise as followings; * Daily or Weekly result. * Responsible communication for more than 10 hours each day. * 100% money back guarantee if not satisfied for any reason. Contact me and then you never regret! Let's do a good business together! Best regards, Albert P.

    $38.89 /hr
    0 hours
    4.95
  3. Andreas Braun

    Andreas Braun

    Senior Developer in Frontend / Ruby on Rails / WordPress / MVC

    Germany - Tests: 11 - Portfolio: 7

    Hi, I am a senior web developer with 10+ years experience. I have developed a wide range of websites. I am always trying to deliver high quality solutions before deadline. I have strong skills and good experience in the following areas. - Ruby - Ruby on Rails Refinery CMS, Spree RSpec,Cucumber,TDD,BDD Various Ruby Gems, - PHP ( OOP ) MVC : Symfony, Laravel, CodeIgniter, Zend CMS : WordPress ( Theme development & customization, Plugin modification ) - Front-End: HTML/CSS, Twitter Bootstrap, Foundation JavaScript, Ajax, Coffeescript, HAML, - JS Framework: AngularJS, D3JS, NodeJS, EmberJS - Database: SQLite, MySQL, PostgreSQL, MongoDB I am looking forward to work with you!! Thanks for your time and consideration.

    $40.00 /hr
    33 hours
    4.91
  4. Alexander Pronin

    Alexander Pronin Agency Contractor

    Expert in Mobile Application Development and Project Management

    Ukraine - Tests: 4 - Portfolio: 13

    Region IT company is the team of professionals whose passion is mobile applications. We are experts in Android and iOS apps development and UI design. This is what distinguishes us from others: R — reliability and privacy. E — experience (more then 15 projects during 2 years). G — goal of an project that is common with our partner. I — intelligent managers. O — opportunity of work in terms of fixed price, T&M projects and outstaffing. N — nice rates. I — innovative vision in a work. T — talented team of skilled specialists. We would like to offer you a collaboration on: • Android application development; • iOS application development; • testing of web and mobile applications; • design and UI/UX development; • .NET development.

    Associated with: Region IT

    $20.00 /hr
    350 hours
    5.00
  5. Nitin Padgotra

    Moodle Experts

    India - Tests: 1

    I had developed many moodle platforms using moodle, joomdle, Signsignon of moodle , various moodle plugins like quiz, authentication , signle sign on, ldap, external database connection, LTI consumer and producer, moodle reports , moodle themes , moodle mail platforms, moodle integration with other cms, moodle setup on amazon , aws, ec2 instances, integrated with kaltura , big bluebuton, created custom apis like rest and soap for moodle and many more. Integrated moodle with paypal, authroized.net, union pay, china payment services Also worked allot on eCommerce like logistics, ware house managements, ERP systems and carriers like UPS, FEDEX, DHL, USPS and many more.

    $18.00 /hr
    470 hours
    4.22
  6. Jagjeet Kaur

    Jagjeet Kaur

    ASP.NET MVC5 | Azure Expert |

    India - Tests: 12 - Portfolio: 4

    I am Lead ASP.NET developer carrying over 7 years of experience with cloud based application development and deployment including Amazon EC2, Amazon S3, AWS and Azure. I possess excellent communication, presentation and organizational skills through which I compile and disseminate knowledge to clients and other technology enthusiast. I have been working on SOAP, WSDL and XML web services since its inception along with the .NET Framework itself and can write SOAP envelops by hand and fix and integrate a cutting edge technology such as Azure with a technology as SOAP, which is quickly running out of popularity and official support by MS. Proficient in managing the entire software development life-cycle involving requirement gathering, development of the functional specifications, application designing, coding and deployment along with the coordination with the end user. I utilize GIT, TFS, Bitbucket and SVN when writing code and am very familiar with them. Working with me, you'll get well written, testable, maintainable, revision controlled code. Please feel free to inquire about my services, I'll be glad to help with no obligations or pressure until you are comfortable.

    $12.00 /hr
    120 hours
    5.00
  7. Wolfgang Herrmann

    Wolfgang Herrmann

    Super Mobile App Developer

    Germany - Tests: 4 - Portfolio: 2

    I pursue the Best Quality. I will do best for your satisfaction. I have 6+ years of experiences in mobile app programming that include almost 100 projects. My skills: iOS, Android, Windows app programming cocos2d, box2d, OpenGL, Corona, Unity 3D Game Center, In-app purchase, RPG Server Chartboost, Revmob, Upsight, Adcolony, Applovin, Admob, Vungle, Flurry, mopub, Tapjoy Facebook, Twitter, Instagram, Youtube MySQL, SQLite, Oracle, ODBC Parse.com, Amazon S3, Twillio Chat and Message Engine Video/audio/image processing Video/audio streaming

    $33.33 /hr
    20 hours
    5.00
  8. Mitton Pienaar

    Mitton Pienaar

    Software Developer

    South Africa - Tests: 4 - Portfolio: 3

    I am a talented software developer with an IT Management background. I am an analytical thinker with the ability to address a wide variety of business and engineering challenges using appropriate Information Technology. I am passionate about cloud computing and the changes it is likely to bring in the Information Systems industries.

    $34.00 /hr
    12 hours
    5.00
  9. Pavel Andreev

    Pavel Andreev

    Software developer

    Russia - Tests: 7

    Hi! If you are interested in quality result - drop me a line. I believe my strong points are my Responsibility and Punctuality. In past I've developed large proprietary projects, such are SafeCity for some cities in Russia, machiine and computer vision (CV) systems for hardware of one of most famous semiconductor manufacturer. Nextly I developed Web services based on Microsoft stack. Also I'm Certified Nokia Qt Developer. Thank you in advance for your time and consideration. I look forward to working with you soon.

    $32.00 /hr
    277 hours
    5.00