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, 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
More options
Clear all filters
  1. Bentea Lucian

    Bentea Lucian

    Senior Mobile developer

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

    Hi I am a strong mobile developer who has many experience for 6+ years. Over last 6 years, I have developed many apps and games for iOS/Android. I have experience in following area: 1) Mobile App development - iPhone, iPad, Android UI design (iOS 7, iOS 8 AutoLayout) - Social Integration like Facebook, Twitter, Instagram, Pinterest - Google Map service, Geo Location - Parse framework - JSON, PHP, SQLite, CoreData - Photo/Video Editing and Sharing - Video Live Stream - Testflight 2) Mobile Game development - cocos2d, cocos2d-x, box2d, corona, Unity3D - In-App, Game Center, Leaderboard - Chartboost, Revmob, Admob, Mopub, iAd, App Lovin I am sure I can finish your project successfully. I will provide you high quality products within deadline. Let's work with us. Thank you for visiting my profile. Bentea L.

    $55.56 /hr
    425 hours
    4.97
  2. Oswald Daumiller

    Oswald Daumiller

    Senior Android Developer

    Norway - Last active: 3 months ago - Tests: 7 - Portfolio: 6

    Do you need great Android App developed with high quality and tight deadline? You came to the right place. Last 5 years I have developed various apps for Android including but not limited to social networks, clients apps for various web-based solutions, custom firmwares, complex solutions involving working with Bluetooth and USB hardware connected to android device. I always try to find the way to improve my skill in programming without impacting working performance and things to make client happy. In each project I try to use best practices to make code runs fast and let project became bigger without additional effort to rewriting parts of the application in future. My projects have a lot of technologies used: - Connection to the server and receive JSON , XML, PLIST files and .png and .jpg images. - Parse/Upload large data from/to server. - Working with camera, streaming video data, apply various effects to real-time video. - Bluetooth communications. - Connecting android devices to USB accessories. - Optimize loading big images into device memory. - Different layouts to show complex content to user. - Asynchronous work everywhere its required to load data dynamically and lets UI run data. - Animations. - Push notifications - Ads Don' hesitate to contact me any time, and lets make this word easy with quality applications. I will help you! Thanks.

    $38.89 /hr
    171 hours
    5.00
  3. Marco P.

    Marco P.

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

    Netherlands - Last active: 29 days ago - Tests: 9 - Portfolio: 16

    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
  4. Pranav Zadafiya

    Pranav Zadafiya

    Senior Asp.net Developer (C#, MVC)

    India - Last active: 14 days ago - Tests: 1

    I am Pranav having Master degree in Computer Science, having 5 years of experience in web technologies I am proficient in ASP.NET, VB.NET ,MVC Razor syntax, HTML/CSS3 and MSSQL Server along with jquery. I am very good at ADO.NET and webservice.I am also familiar with twitter api and facebook api too. I know good javascript, i can write namespaced javascript too. I am really good at object oriented, my code is clean and commented.I am very strong at LINQ to Entity also.

    $17.78 /hr
    1,957 hours
    4.50
  5. Lakshman singh G.

    Lakshman singh G.

    Sr. Software Developer

    India - Last active: 21 days ago - Tests: 9 - Portfolio: 3

    Over the last 3 years I have been working on • iOS/Objective-C • XMPP • SpriteKit • JSON • PHP/MySql • HTML • CSS • Javascript I have also have good amount of experience in Mobile Application too as I worked in past 1 year Seeking a position to utilize my skills and abilities in the Information Technology Industry that offers professional growth while being resourceful, innovative and flexible.

    $10.00 /hr
    22 hours
    5.00
  6. Girdhari Choyal

    Girdhari Choyal Agency Contractor

    Wordpress / CodeIgniter / Squarespace / Real estate IDX / PHP

    India - Last active: 5 days ago - Tests: 8 - Portfolio: 1

    Programmer and Developer for Websites with 3 years of experience. I am proficient with the following programming and markup languages • HTML • CSS • XML • JavaScript • PHP • MySQL • AJAX • jQuery • JSON Over the past 3 years, I have developed a variety of websites which covered many areas of the IT field and the non - IT fields. I also have hands on experience in the following CMSs and eCommerce software and framework. • Magento • WordPress • Joomla • Squarespace • Drupal • Codeigniter Some more about them and skills of mine, Need help with Wordpress? I'm your man. Experienced wprdpress Developer • Everything wordpress. • Wordpress Installation • Theme installation • Theme customization • Building Custom Templates • Payment Gateways • Plugin setup • Plugin customization • HTML to Wordpress • Woocommerce • Realstate Theme • Wordpress data import • Create new pages • Manage wordpress site • Teaching Wordpress for clients who need it. WordPress / CodeIgniter & Squarespace Superuser. Have a strong knowledge of codeIgniter , WordPress and Squarespace and the functions behind the systems. If you need some projects done in the systems I can help you out at a good price. Skilled Developer for Web and wordpress . Need a Website created? I am here to help you by applying my knowledge and experience to solve your problems. And at the end you'll be amazed.

    Associated with: Acombo

    $10.00 /hr
    16 hours
    5.00
  7. Hardeep K.

    Hardeep K. Agency Contractor

    iOS/Android Developer with Project Management Skills

    India - Last active: 3 days ago - Tests: 4 - Portfolio: 2

    I have completed my Masters in Computer application and later pursued my studies in server and DB administrator before I started my freelancing career at oDesk as Mobile Developer (IOS and Android). I have 5 years of experience in IT domain and have delivered mobile solutions to my clients situated in US and Pacific region that efficiently cater their target audience. My most of the solutions address social, hospitality, health, retail, e-commerce B2B/B2C, and food industry. Being a process oriented professional, I work with Agile software development approach wherein from ideation, requirements gathering, SRS documentation, UI/UX, website development, web based admin console, API development, DB administration, mobile app development, testing and QA, etc are taken care of and entire project is sliced in phases to measure accountability. Mobile technologies, I expertise in: # Objective-C, Swift, iPhone SDK # Java, Android SDK, Ellipse, etc # Map Kit, GPS base user navigation and Tracking # Photo and Camera base app with many advance filers # Web Server integration using JSON, SOAP, XML and REST Web Service APIs # SQLIte, Core Data and pList database design # FaceBook, Twitter, YouTube, Tumblr, Flickr, Instagram # Push Notification, In App Purchase, iAD, AdMob # Source code repository in SVN, Version GitHub. etc. Post delivery, I personally monitor the application (web and mobile) for a period of 2 months for bug fixing if any and assist client in commercializing the application, review visitor analytic and enhance the solution to reach next level. I look at extending my services for you.

    Associated with: TRIGMA Solutions Private Limited

    $13.50 /hr
    831 hours
    4.98
  8. Noor all S.

    Noor all S. Agency Contractor

    ASP.NET,C# and Database Developer

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

    I am Noor All Safaet.I am graduate in B.Sc in Computer Science and Engineering from University of Development Alternative(UODA). Now I am employer of Silkways Solution Limited .Net Programmer. Previous I was employer of Symphony Softtech Limited Executive of IT Support & Implementation from 01.10.2012 to 10.11.2013 Now I am working on .Net(C#,Asp.Net). I have excellent experience in Software development and Web Development, Database Design and Development. I believe my abilities would be perfect for your venture. I can finish this job within the necessary time frame. I am professional software developer. I will be serving you with all my hard work and skills. I am expert in the following areas • HTML • CSS • JavaScript • JQuery • Ajax • C# • Asp.Net • Crystal Report. • MySql • SQL Server 2008-2012 • Oracle 10G Server R2 • Pervasive SQL Server 10.3, • Windows Server 2012, • ERP Software Implementation, • Networking and Software Installation.

    Associated with: LLC

    $30.00 /hr
    362 hours
    4.99
  9. JOHN FUENTES

    JOHN FUENTES

    Edit headlineComputer Enginner -Software Developer (web - mobile)

    Venezuela - Last active: 4 months ago - Portfolio: 3

    I am a versatile, hands-on developer with over 5 years’ experience working on a variety of projects from conception to delivery. I am conversant in a wide range of technologies - most notably WEB, SQL and MOBILE - and follow the latest industry trends with great interest. My approach is methodical but creative, and I always look to code to the highest standards possible. I am a confident...

    $5.56 /hr
    3,167 hours
    4.01
  10. Deepika Bhambri

    Deepika Bhambri

    Magento Optimizer

    India - Last active: 27 days ago - Tests: 2 - Portfolio: 1

    I am having good experience in Magento module Customization, Magento Module up-dation, Mangento Installation and optimization. Following are the URL for my live websites :- 1) http://www.missyconfidential.com.au/ 2) http://www.veveq.com/ 3) http://uid-inkcycle.landingpages.tv/ 4) http://www.popularoptics.com/

    $10.00 /hr
    64 hours
    5.00