Cheng Tong
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Cheng Tong

Top level iOS/Android and Web developer with high quality


Dandong, China


Thank you for reviewing my profile. I am top iPhone/iPad/Android developer of oDesk. Over the last 4 years, I have been developing mobile project and have rich experience in mobile development: iPhone/iPad/Android. Also I have php, mysql, JSON, XML development skills, can develop web service of mobile application. Readily embracing cutting-edge technology, I have gained an in-depth understanding of the main mobile platforms and recognize the subtle differences between each. Having helped develop a series of commercially successful apps on iOS and Android. MAIN SKILLS •Develop innovative mobile solutions with iPhone/iPad/Android/, Objective-C, Java, REST, Objective Cloud Services and virtualization. •4 years of iPhone/iPad/Android Development Experience ... moreTechnical •Eleven iPhone/iPad/Android apps completed (eight available to the public via the app store). •Five More iphone/android apps in development •Proficient in object oriented programming in Objective-C & IPhone SDK 4.0 •Proficient in Java 6, Object Oriented Design, and Design Patterns •Proficient in MVC, REST, JSON and XML •Proficient in Mac OS X, Centos, Windows •Expert with over 13 years experience of full Mobile Software Development Life Cycle gathering •Requirements, software architecture, design, coding, integration and testing •7 years working experience with database design, programming and administration •MySQL and SQL Server I hope work with you and will do my best for your project. Thank you. Best Regards. Cheng. less

Cheng Tong has added 9 portfolio pieces. Create an account to review them.

Work History and Feedback

  • Jan 2013 - May 2013

    Point Of Sale IOS App Feature Development
    213 hours
    $35.00 / hr
    $7,466.67 earned

  • Nov 2012 - May 2013

    Mobile Application Developer

    No feedback given

    1,118 hours
    $33.33 / hr
    $37,263.08 earned

  • Jan 2013 - Feb 2013

    Vootix - Mobile App Development
    Cheng performed a great test application for Vootix. The quality of his work was excellent, and we hope to work with him again.
    5 hours
    $35.00 / hr
    $175.00 earned

  • Nov 2012 - Feb 2013

    Senior IOS Developer
    907 hours
    $30.00 / hr
    $27,145.20 earned

  • Nov 2012 - Feb 2013

    Good Developer, good communication and app Skills.. thanks
    $2,242.67 earned
    Fixed Price

  • Jul 2012 - Aug 2012

    Integration - Webservices/iPhone App
    Talented developer. Did all task right. Looking forward to work with him again.
    $475.00 earned
    Fixed Price

  • View More (10)

Cheng Tong has more jobs to show. Create an account to review them.


Name Score (out of 5) Time to Complete
Facebook Connect Test 4.50 Top 10% 5 mins
Google Android Programming Test 4.60 Top 10% 6 mins
Programming with C Test 4.40 Top 10% 36 mins
Java Test 4.25 Top 10% 11 mins
XML 1.0 Test 4.40 Top 30% 13 mins
Cocoa programming for Mac OS X 10.5 Test 4.60 Below Average 4 mins
HTML 4.01 Test 4.25 Top 10% 13 mins
iPhone Programming OS 4.0 Test 4.40 Above Average 14 mins
U.S. English Basic Skills Test 4.40 Top 10% 11 mins

Work History

5,388 hours worked
44 jobs


More than 30 hrs/week


Phone Number: Verified

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