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
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  1. Vitaly Sas

    Vitaly Sas

    Expert Android developer

    Belarus - Last active: 1 day ago - Tests: 3 - Portfolio: 2

    I specialize in developing Android apps and have over 4 years of experience in commercial app development. I'm looking for a interesting projects to do a really good job. Challenge me and I'll do my best to create high-quality app in order to meet your wishes. I look forward to working with you. Thank you for reviewing my oDesk resume. Best regards, Vitaly Sas.

    $33.33 /hr
    1,347 hours
    4.90
  2. Jaskiran K.

    Jaskiran K. Agency Contractor

    iOS (iPhone/iPad) expert in Swift / Parse /JSON / XML / API / Android

    India - Last active: 16 hours ago - Tests: 4 - Portfolio: 6

    Absolutely dedicated to creating top notch mobile applications for my clients, I am a skilled programmer with 4 years of development experience in developing iphone and Android Mobile applications. I love develop apps. I like complex and diverse assignments that keep my mind sharp and allow me to constantly learn new things. _____________________My Technical Skills Swift , Objective-C 2.0 , IPhone iOS-2.X/3.X/4, IDE - XCode-3.X , Interface Builder-3.X, Instruments. _____________________I specialize in : - iOS7.0, 8.0, Android - Objective-C, Swift, Autolayout - PHP, Javascript, CSS3, Json, XML - SQL, Coredata - Xcode(5.1.1, Xcode6.1), SDK FrameWork - Custom API (FaceBook SDK,, Twitter API, ,Instagram API, phpfox API, parse API, FireBase, Foursquare , Amazon S3) ____________________Backend skills - Strong command on versioning control system like Git, branching, tags etc. - Java EE - Strong OOP concepts. - Design Patterns. - Database architecture and management. - Google Cloud Platform - App Engine - Objectify library. - Creating and managing RESTful API using App Engine. - Writing clean and readable code with comments. - Working with other team members. - Issue tracking systems like JIRA, Trello. - Image and Videos caching, manipulation, pagination and optimization. - Strong knowledge of push notification technologies.

    Associated with: CS Soft Solutions Pvt. Ltd.

    $18.00 /hr
    1,171 hours
    4.69
  3. Roman Valeev

    $40.00 /hr
    6,837 hours
    4.90
  4. Andrei Churyla

    Andrei Churyla

    Android Developer

    Belarus - Last active: 16 hours ago - Tests: 3

    Hi, my name is Andrei Churyla. Since 2012, I develop Android applications. There are few of the programs that I've developed in my portfolio. I believe my strong points are my Persistence and Sociability. My #1 goal will always be to meet your needs and deadline. When working on a new project, I like to speak with the client, so that I can have a clear understanding of his/her needs and vision of the project. Listed below are my experience and skills. — Android (2.x, 4.x, 5.x): Fragments API, Location and Sensors API, SQLite, UI, Google Map API, GCM, Social Network API, Back-end services API, Google Analytics API, In-app Billing API, admob, ActionBarSherlock, etc; — Java Core: Java Core, Multithreading, Collections API, etc; — Core web: REST API, XML, JSON; — IDE: Eclipse, Android Studio; — OS: Linux, Windows; — VCS: Git, Mercurial, SVN; — Bug/Issue trackers: Jira, Redmine, Trello; — UML. I look forward to working with you soon.

    $34.00 /hr
    1,284 hours
    5.00
  5. Alif K.

    Alif K.

    Senior IOS/Android +iBeacon/BLE Expert

    Malaysia - Last active: 4 days ago - Tests: 5

    Hi. My name is Alif and nice to introduce me to you I have 8+ years experience in IOS/Android app development and I have good skills and high ability in many fields of mobile app development During those days I worked as developer, lead manager as well as consultant so that I think I can be some help to you I'm here to make your dream come true and satisfy all your requirement perfectly My motto is to be honest and to be responsible and to keep the promise I will try my best to meet your needs and I hope you give me a chance to work for you I have much experience and skills in following types of IOS/Android app development -Dating App(Match function, Gps tracking,Chat, VOIP, IAP, Push notification) -Media sharing App(Uploaidng/Downloading photos, videos, broadcast to friends) -Third party Integration(Facebook, Twitter, Instragram) In addition, Strong backend knowledge(parse, amazon) and Web programming experience Thanks

    $55.56 /hr
    1,748 hours
    5.00
  6. Priyanka S.

    Priyanka S. Agency Contractor

    9+ year Experiance c#,.net,Sql server , SSIS,SSRS

    India - Last active: 16 hours ago - Tests: 2

    I have 9 years of experience with C#, .NET, ASP.NET MVC, JQuery, SQL Server [2005,2008,2014], LINQ, Entity Framework, TSQL, etc. I managed to work on various projects, have developed a number of websites and services, desktop applications for small to large companies. I have skills with wide set of Microsoft technologies. I have expertise in : -- MS SQL SERVER, T-SQL, SSIS, SSRS, DBA, BI, Crystal Reports. -- .Net Frame work (4.0,3.5,3.0, 2.0 ) with C# / VB. -- MVC -- jQuery, JSON -- E-commerce -- SEO friendly web development -- Web Designing. Third party Controls: -- Dev Express -- Telerik controls, -- Infragistics, -- Kendo, -- Obout Payment Gateways : -- Paypal -- CitiBank -- CyberSource -- Authorize.net

    Associated with: TechnoBrains IT Solution Private Limited

    $35.00 /hr
    2,705 hours
    5.00
  7. Karan Dua

    Karan Dua Agency Contractor

    Iphone developer

    India - Last active: 3 days ago - Tests: 3

    I have 5 years of experience in IT industry. I have good expertise in iPhone development, HTML, CSS, Javascript, xCode, Cocoa Touch, Corona, Cocos2D, Sencha Touch, PhoneGap, RestKit APIs, Coredata, VoIP, XMPP, SIP Server, Jabber, java, eclipse, Social networking web services, Google web services,etc. I like to program. I like complex and diverse assignments that keep my mind sharp and allow me to constantly learn new things.

    Associated with: Logix Enterprise Solutions

    $22.22 /hr
    1,365 hours
    5.00
  8. Jason T.

    Jason T.

    Hard-working, software designer/developer

    United States - Last active: 1 day ago

    I am Jason Thompson. I am currently an independent contractor for a start up software company in Rochester, MN. My specialities are javascript, Postgres, Dojo javascript toolkit, XML, HTML, and some CSS, and Perl.

    $30.00 /hr
    1,962 hours
    4.98
  9. Stefan Vichev

    Stefan Vichev

    Senior Mobile Developer(iOS/iPhone/iPad expert)

    Bulgaria - Last active: 16 hours ago - Tests: 5 - Portfolio: 2

    Stefan Vichev having overall 15 years of working experience in programming by developing various kinds of applications in different platforms. Expertise: Objective C,C/C++, C#, MySQL, Cocoa Framework, PHP, OOP, version control tools(Git/Bitbucket/SVN), Distributed and Client-Server Application, outsourcing, artificial intellect, algorithms design Experience: Stefan also have diverse experience in IT, project management, effective problems solving, prefer to propose and implement universal solutions instead of quick hot fixes (hacks) as universal approaches rises programs quality, improves its properties, saves time for maintenance in long term perspective. Objective: Longterm relationship rather than one quick time work

    $88.89 /hr
    2,083 hours
    4.98