Profile image of chengcaijin
Flag of China Dandong, China
Member since March 27, 2017
2 Recommendations


Online Offline
Welcome to my profile !!! Producing the "Highest Quality" work for my clients and to satisfy them 100% completely with work. My Top skills ✅ iOS (iPhone, iPad), Object-C, Swift, XCode ✅ Hybrid, React Native, Ionic, Angular ✅ Android, Java, Android Studio, Eclipse ✅ Web: Node, React, PHP, Laravel, Python, Ruby on Rails, Javascript, jQuery, CSS , AJAX I’ll provide the following service to you during work with you. 1. Daily Report. 2. 100% client ongoing satisfaction with perfect quality of product. I’ll provide the following service to you after complete project. 1. support fixing bugs with free. ( Collateral term : 6 months ) 2. support update features with low price. Thank you :)
$45 USD/hr
68 reviews
  • 99%Jobs Completed
  • 97%On Budget
  • 98%On Time
  • 24%Repeat Hire Rate


Recent Reviews

  • image of thomasbrun Project for Wang F. -- 3 $500.00 USD

    “Great work. Wang was always available and responsive to messages.”

  • image of wadesignhk Project for Wang F. -- 18/01/30 18:50:52 $555.00 USD

    “Wang is always a great App expert whom can solve lots of defects in hours, always meet requirement and never lost communication. Highly recommended again and again!”

  • image of edwin42ocket Project for Wang F. -- 2 kr9731.00 SEK

    “Really good guys”

  • image of robkmoon43 Project for Wang F. $250.00 USD

    “Working with Wang F. is like being in good hands. I trust and know that he does an excellent job and gets the job done as soon as possible. It is easy to keep in touch with him and scheduling time to meet is no problem. Great Work!”

  • image of Tarek F. create a page on oxwall plateform $60.00 USD

    “he is a good designer but can't integrate to complicated plateform or CMS”

  • image of amgedgad Project for Wang F. -- 18/01/29 22:13:46 $250.00 USD

    “Perfect Wang”


IT Manager

Jun 2015 - Feb 2017 (1 year)

I've worked as a Project Manager.

Mobile Developer

Apr 2012 - May 2015 (3 years)

I have got lots of experience iOS/Android application development with Objective-C, Swift, iOS SDK, Cocoa, Local and Push-notification, In-App purchases, Core Image, CoreData, CoreAnimation, CoreGraphics, Image Processing, Video Processing, Social Network, REST-API, JSON, CocoaPods, git I have developed lots of iOS apps perfectly and they are available in Apple Store.


Bachelor Degree

2003 - 2007 (4 years)


  • Preferred Freelancer Program SLA
  • US English Level 1


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