Jin Jinwang
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Jin Jinwang

Experienced Android | iOS | Web Developer


Dandong, China


✪✪✪✪✪ Mobiles will make the WORLD beautiful!✪✪✪✪✪ I am a skilled mobile developer with 4 years of experience developing on both the Android platform and on iOS. I have developed on Java for many years and obtained Sun Certification in 2000. I can get a lot done in a short time, and I'd welcome the chance to complete a high quality project for you. Currently, iPhone/Android/Blackberry development is my core area of interest. I am very fluent in Objective-C/Java application development. I have made use of APIs of SNS(Facebook, Twitter, Linked In, Youtube etc.), Google Maps, GPS, Communication(Wifi/3G) etc. In addition to my ... moredevelopment, I have more than 3 years experience of professional Web design/programming using HTML, CSS, JSP, PHP, JavaScript, AJAX, JSON, RSS, JQuery, MySQL. A prominent feature of my applications involves writing well organized code. You'll experience it yourself once we get chance to work together. less

Jin Jinwang has added 16 portfolio pieces. Create an account to review them.

Work History and Feedback

  • Jan 2013 - Feb 2013

    Facebook/Twitter Integration
    13 hours
    $35.00 / hr
    $443.45 earned

  • Jan 2013 - Feb 2013

    Android developer for imaging and document safety app
    Jin did great job delivering in a tight timeline. Thank you!
    15 hours
    $33.33 / hr
    $499.95 earned

  • Nov 2012 - Jan 2013

    Android mobile application
    Jin is a great developer. Highly recommended!!
    498 hours
    $33.33 / hr
    $13,515.32 earned

  • Nov 2012

    Experienced Android Developer
    Jin is one of the best Android programmers I've ever dealt with. I was working with another team that had spent months trying to resolve some issues but with no luck. Jin to joined the team, and within days, he was able to learn their codes, resolve all outstanding issues, and improve app. Jin is a workaholic who doesn't mind sacrificing his time to make a client happy. I'm already lining up more projects for him.
    69 hours
    $29.00 / hr
    $2,005.64 earned

  • Sep 2012

    Android app development
    Jin has done a good job for me. I am very happy working with him, and I can recommend him to all that needs a good android programmer. I will hire Jin for any of my future android applications.
    25 hours
    $33.33 / hr
    $833.25 earned

  • Aug 2012 - Sep 2012

    Android/Apple Developer
    Jin is an amazing programmer to work with and his quality of work is amazing. His ability to make your vision come to life is unmatched and he takes the time to make sure he gets it right no matter how many revisions. Jin communicated well with me throughout the process and ensured that all of my request were completed. Jin is a joy to work with and I highly recommend him to others. I hope to establish a long term relationship with Jin as working with him was great. Jin was also very understanding and didn't hesitate to explain parts of the process that I was unfamiliar with. He is very eager and willing to work hard and produce an exceptional application. I hope to do many more projects with him in the future and plan on hiring him again.
    113 hours
    $33.33 / hr
    $3,766.29 earned

  • View More (3)

Jin Jinwang has more jobs to show. Create an account to review them.


Name Score (out of 5) Time to Complete
Facebook Connect Test 4.60 Top 10% 12 mins
Google Android Programming Test 4.60 Top 10% 16 mins
XML 1.0 Test 4.10 Above Average 21 mins
Objective C Test 4.75 Top 20% 20 mins
Cocoa programming for Mac OS X 10.5 Test 4.40 Below Average 14 mins
iPhone Programming OS 4.0 Test 4.40 Above Average 22 mins
U.S. English Basic Skills Test 4.50 Top 10% 15 mins

Work History

4,332 hours worked
32 jobs


More than 30 hrs/week


Phone Number: Verified