Xin Z.
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Xin Z.

Top 1% iOS/Android App Developer


DanDong, China


✮✮✮✮✮ Top 1% iOS/Android App Developer ✮✮✮✮✮ For over 5 years, I have developed many iPhone/iPad/Android Apps such as Photo & Video Sharing Apps, Location Based Apps, Augmented Reality Apps, Contents Management Apps, Trivia Quiz Games, and so on. I mastered various kind of iOS Frameworks, Facebook/Twitter/Google+/Foursquare SDKs, MapKit, REST API, SOAP API, JSON/XML, PHP & MySQL, and so on. My skills and experiences are following : 1. App - Social Networking Apps(like Facebook, Twitter, Foursquare, Google+, LinkedIn, Find My Friends) - Photo & Video Apps(like Instagram, YouTube) - Dating Apps(like SKOUT) - Augmented Reality(Metaio, Vuforia, PointCloud.IO, D' Fusion, String, ARToolKit) - Social Turn Based Games(like Word with ... moreFriends, Draw Something) - Navigation Apps(like MotionX GPS Drive, Around Me) - Food & Drink Apps(like Urbanspoon, OpenTable, Starbucks) - Health & Fitness Apps(like MyFitnessPal, Nike+Running, Run Keeper) - Travel Apps(like Yelp, - Utility Apps(like Find My iPhone, Flashlight, QRCode/Barcode Reader for iPhone) 2. Features - Video/Photo Manipulation(CoreImage, GPUImage) - OpenGLES - Facebook APIs, Twitter APIs, LinkedIn APIs, Yelp APIs - Instagram APIs, Youtube APIs - Google APIs, GPS system - JSON, XML, SOAP - In App Purchase - Push Notification - Advertisement(iAd, AdMob, RevMob) 3. Programming Languages. - Objective-C - C/C++/C# - Java - JavaScript - HTML - PHP/MySQL Also I have a high - skilled graphics designer to work together, So I can build full application including UI graphics. I am always available to chat by Skype or eMail and would be happy to set up a convenient time to discuss the project you have in mind and your ideas. ✮✮✮✮✮ I always look for a long term relationship based on trust. ✮✮✮✮✮ less

Xin Z. has added 6 portfolio pieces. Create an account to review them.

Work History and Feedback

  • May 2013 - Aug 2013

    Talented iOS App Developer Required for App Project (not a game)

    No feedback given

    83 hours
    $33.33 / hr
    $2,438.61 earned

  • May 2013 - Aug 2013

    iPad Database

    No feedback given

    11 hours
    $33.33 / hr
    $233.31 earned

  • May 2013 - Aug 2013

    create an app for real estate report

    No feedback given

    21 hours
    $33.33 / hr
    $683.27 earned

  • Jun 2013

    AR Demo
    Xin is Great!!!
    5 hours
    $33.33 / hr
    $166.65 earned

  • Jun 2013

    AR Demo
    Xin was a pleasure to work with from start to finish on our project. His availability and communication throughout the process was excellent. We will definitely work with him again very soon.
    40 hours
    $33.33 / hr
    $1,333.20 earned

  • Apr 2013 - Jun 2013

    iOS App - Estimate Calculator
    Xin is absolutely GREAT to work with. First of all, his English is great which makes things very easy. He understood exactly what I needed (even when I couldn't explain it very well). He is ALWAYS available. He works hard, fast, and intelligently. I have used a lot of app developers on oDesk trying to find the right one for my projects, and Xin is that developer. It couldn't have gone any better. Thank you Xin!!!
    110 hours
    $33.33 / hr
    $3,666.30 earned

  • View More (21)

Xin Z. has more jobs to show. Create an account to review them.


Name Score (out of 5) Time to Complete
Google Android Programming Test 4.75 Top 10% 20 mins
iPhone Programming OS 4.0 Test 4.90 Top 20% 18 mins
MySQL 5.0 Test 4.40 Top 10% 19 mins
JavaScript 1.8 Test 4.50 Top 20% 26 mins
Objective C Test 4.50 Top 20% 13 mins
Cocoa programming for Mac OS X 10.5 Test 4.60 Below Average 13 mins
Java Test 3.75 Top 10% 23 mins
PHP5 Test 4.25 Top 20% 17 mins
U.S. English Basic Skills Test 4.25 Top 20% 28 mins

Work History

1,944 hours worked
60 jobs


More than 30 hrs/week


Phone Number: Verified


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