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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

Time needed to complete a json project on Upwork.

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. Gurpreet S.

    Gurpreet S.

    Android | Iphone | Ipad Application Developer

    India - Tests: 1 - Portfolio: 6

    I am experienced android/ios developer with 2+ years of experience as well as a team leader .I have developed a variety of apps for various clients. My team includes - iOS developer with 2.5+ year experience - Web developer with 4+ year experience(php,.net) - Android developer (me) 2+ year experience. - UX/ UI designer with 3+ year experience (web-design, graphics design, logo design) If you want qualitative work, timely delivery, long term engagement then I am the person whom you are looking for. Expert in error / bug solving for android / iOS. And have a great experience dealing with In-App purchase, push notification, cloud storage, Google map, gps, geo location service, web-services, APIs, social media integration, ad networks, uploading apps to itunes store and play store. SERVICE DESCRIPTION Android development Range of our Android applications can be seen across areas like :- a) Audio/video recording and video comparison b) Integration with Social Media (Facebook/Foursquare/Gowalla/Twitter/YouTube) c)All kind of parsing XML,JSON,SOAP,Feed...etc. d) Instant Push notification (GCM,c2dm, Urbarn airpush, Parse...) e)AdMob, iAd, adWhirl, Revmob, Tapjoy, Startapp Mopub, Chartboost integration f) GPS and Location frameworks g) Custom Animations h) Bar code scanner, QR Code scanner i) PDF: MuPDF library j) Download | Upload data to server (Text,Images,Video...etc) Iphone app development a) Native iPhone/iPad functionality for audio/video recording and video comparison. b) Integration with Social Media (Facebook/Foursquare/Gowalla/Twitter/YouTube) c) Integration with REST/XML based web services. d) Gaming e) iOS SDK and Objective C f) XCode and Interface Builder g) Instruments Testing and Memory Leak prevention h) OpenGL and Open AL i) Audio Video Foundation Framework and Queues Management j) Media Player Framework k) Quartz and Core Animation l) GPS and Location frameworks Web Design & Development a) Complete website development b) Responsive website design c) Ecommerce websites d) Webservice development e) CMS F) Parralex design g) ERP solutions Graphics design a) UX/ UI designing b) Logo design

    $16.67 /hr
    2 hours
    5.00
  2. Rajeev Kumar Dubey

    Rajeev Kumar Dubey

    Upwork's Certified Sr. iPhone Developer

    India - Tests: 3 - Portfolio: 1

    Hi Guys, This is Rajeev, An iOS Expert Freelancer. I have done my graduation in Computer Science and then I have completed my MSC in Computer Science. I am into the iPhone Application Development right after completing my Graduation as a Start-up Company saw the Future Developer in me and Hired me as a iPhone Developer Trainee. I grew steady but my overall growth was Fast so the company started giving me big projects. In last 4 years, I have gained excellency in the following : ✔ Native: iOS, (Objective-C) ✔ Web service: XML/JSON, REST/SOAP ✔ Cloud backend: Parse.com, Parse SDK, Parse REST, Parse Cloud Code, Amazon S3 EC2 AWS, Twillio. ✔ Video/audio/image processing: OpenCV, GPU Image, Quartz core, CoreAudio, EZAudio, Pitch Control, Bass, AVFoundation ✔ VOIP, Cloud Communication: Twillio, C2Call SDK. ✔ Speech recognition, text-to-speech, Siri. ✔ MySQL, SQLite, Oracle, SQL Server, ODBC ✔ Facebook, Twitter, Linkedin, Instagram, Youtube, Pinterest, Vimeo ✔ Google Map, Foursquare, Geolocation, GPS, Open Street Maps ✔ Augmented Reality: Vuforia, Metaio ✔ Cocos2D, OpenGL, Corona, Unity3D, ✔ Game Center, In-App Purchase ✔ iAd, Adwirl, Revmob, Admob, Chartboost, Tapjoy, Flurry, New iTunes Testflight ✔ Cloud services: iCloud, Rackspace, Zoho CRM, Salesforce, Azure, AWS, EC2, Dropbox ✔ Enterprise Resource Planning (ERP), Cloud POS, Warehouse Management ✔ P2P Payments: Bitcoin, Guldencoin, hivewallet, breadwallet ✔ Online Payment Gateway: PayPal, Authorize.net, ZooZ SDK. I have develop applications using native controls like UIView, UIImageView, UIScrollView, Table View, Default and Custom Cell, PageControl etc. I'm also qualified in integrating third party libraries and SDKs in iOS applications like Facebook, Twitter, etc. Also I have excellent skills in Web Design and Development using HTML5, CSS3, JavaScript, jQuery, PHP, WordPress, Zoomla, CodeIgniter, Magento, CakePHP etc. As a Navite iOS Developer, I don't use tools like PhoneGap or Appcelerator. I have direct experience with Apple's policies, device capabilities and account management procedures from Submitting more then 50 Client's Apps to the App Store. I do not publish my own apps to Apple, I Publish Apps to the AppStore using my client's iTunes account so that my client may have the full ownership rights on the App.

    $16.67 /hr
    46 hours
    0.00
  3. Piotr Rojek

    Piotr Rojek

    Full-stack Web Developer // Golang developer

    Poland

    I'm dedicated web developer, working mostly in Go (golang), which allows me to deliver very performant and scalable apps for my clients. I can build fast and modern websites with JavaScript frameworks for frontend. I'm not afraid of challenges. My motto is "sleep can wait" :-) I speak English, Spanish and Polish.

    $40.00 /hr
    165 hours
    0.00
  4. Jammaica Mae Ignacio

    Jammaica Mae Ignacio

    Web Developer

    Philippines - Tests: 5 - Portfolio: 2

    I'm a full stack Ruby/Javascript (Front-end) developer with 3+ years of professional experience. I'm good problem solver and puzzle enthusiast holding BS computer science. Today I'm offering backend/frontend services as a freelancer. My main skills: • Ruby, JavaScript • HTML5, CSS3, Bootstrap, HAML • PostgreSQL, MySQL • REST, XML, JSON • Rails, Jquery, BackboneJS, Coffeescript • Photoshop • Experience working with APIs: Facebook Graph, GLOBE, Chikka, Github and serveral others • Git, SVN • Apache, Nginx • Amazon AWS, Digital Ocean • Linux • Understanding of OOP principles and software design patterns • Teamwork experience, JIRA, Pivotal Tracker I have a github and gitlab account. I developed a wide range of websites using Ruby, HTML, JavaScript, CSS and MySQL. I built sites both from scratch and using frameworks, developed custom modules and extended existing ones for my clients. Last two years I was working as full stack developer for an online accounting system (Indinero Inc.), software house (Innohub Inc.) which cater software solutions in a mortgage company in USA. Currently I am maintaining/managing an online payslip application which I created from scratch and deployed last Jan 2015 for a payroll company in Cavite, Philippines as a freelance work. If you feel I am a good fit in your current or upcoming project. I am always available and very much willing to be one of your hired freelancers. Cheers! Email: jammaica_ignacio@yahoo.com Skype: jamjam_04

    $15.00 /hr
    44 hours
    0.00
  5. Sanjay Mishra

    Sanjay Mishra

    J2EE Java Developer

    India - Tests: 2 - Portfolio: 2

    hi i am java developer having 3 years experience. I will be much pleased to develop my career as a Software Engineer where I will be a valuable team member, contributing quality ideas and work.I am a B.E. graduate in computer science with an aggregate of 70%. and i am having 2.5 year Experience in core java ,struts,hibernate spring,my sql Technologies.an organization where there is an ample scope for individual as well as organization growth in Software Design and Development. Here by I do paste a copy of my resume for your kind reference.

    $12.00 /hr
    0 hours
    0.00
  6. Usman U.

    Usman U.

    Web & Mobile Developer

    Pakistan - Tests: 10 - Portfolio: 2

    I am Working as a Mobile and Web developer over the last 3 years. I have worked on small projects as well as on large and challenging projects. My work is given below during the last three years what expertise I have you can see below. Flexi Analysis Android app Native development in Java, using Android Studio, used SQLite database, Webservices and Material Design as well. App url is as follows: https://play.google.com/store/apps/details?id=co.smartminds.flexianalysis Some of the web projects that I have worked on are as follows: 1. Flexi Analysis (http://www.flexianalysis.com/) 2. City Information Website (http://fatehjangcity.com) 3. Entertainment website (http://euroaz.tv/) Technologies used in these projects are as follows: C#, ASP.Net Web forms, MVC, Web Services, Web API, JSON, jQuery, Bootstrap, MS SQL, ADO.NET, Ajax, etc.

    $15.00 /hr
    0 hours
    0.00
  7. Bilal Hussain

    Bilal Hussain

    Software Engineer

    Pakistan - Tests: 1

    I'm a web developer ( Frontend and Backend ) with 2 years of experience in building high quality web applications and websites. I also have skills in SEO and good knowledge of search engine algorithms.. It's important to me to build long term relationships with clients, so I'm primarily looking for long term projects. I'm flexible with my working hours and am happy to work closely with any existing freelancers you work with. I look forward to hearing from you!

    $3.33 /hr
    0 hours
    0.00
  8. Muhammd Maqbool

    Muhammd Maqbool

    Logic Player Desktop/web developer in C#.net and ASP.NET

    Pakistan - Tests: 1 - Portfolio: 3

    Over the last 6 years, I have been developing websites using ASP.NET WebForms ASP.NET MVC 5, Entity Framework code first,HMTL, DHTML,HTML5, javascript, json, KineticJs, Ajax, jquery, jquery ui, bootstrap, and SQL Server including sites for startup companies and small businesses. My core competency lies in complete end-end management of a new website development project, and I am seeking opportunities to build websites from the ground up for you or your business.

    $16.67 /hr
    0 hours
    0.00
  9. Mohamed Soliman

    Mohamed Soliman

    Expert Java Developer with TIBCO experience

    Egypt - Tests: 4 - Portfolio: 2

    I'm a Java developer with 9+ years experience in Java/J2EE applications development. I've worked in Java desktop applications development (SWING and console applications) as well as many J2EE personal and enterprise web projects, and have rich experience in J2EE frameworks such as Struts 1 and 2. I've worked in applications support for 3 years, supporting enterprise applications in telecom environment, and have experience in TIBCO middleware and integration products such as EMS, ESB, ActiveMatrix and FOM.

    $25.00 /hr
    0 hours
    0.00
  10. Eric C.

    Eric C.

    D3 Data Visualization Expert

    United States - Tests: 1 - Portfolio: 5

    I have 15 years of experience developing interactive web-based platforms and my extensive academic work has focused on data visualization and interface design. An expert in all things HTML5, I specialize in using D3.js to develop engaging, interactive experiences. My work history includes creating rich web applications and visualizations for Fortune 500 corporations (Ernst & Young, Abbott Labs) and world renowned universities (Case Western, Boston Univ, Tufts). My academic degree's have focused on usability and data visualization, having passed PhD qualifying exams in human computer interaction and algorithms. Whether you know exactly the type of visualization you want or just have an idea and need some guidance, clients can rest assured that I will work with them every step of the way to turn their idea into a polished product.

    $80.00 /hr
    12 hours
    0.00