Profile image of progcgstar
Flag of China Hangzhou, China
Member since June 15, 2017
14 Recommendations


Online Offline
As a mobile/web/desktop programming expert with 12+ years of experience and powerful mathematics background, I've always designed and built awesome software products based on the strong logic and abstraction. I regard keeping time and quality as the most important one while developing. All the clients will get the perfect results from me. Langauge & Skills: - Web * Django/Flask * PHP(Laravel, CodeIgnitor, CakePHP, Yii, Zend, Wordpress, Joomla, Drupal) * JSP, Spring+Hibernate(Mybatis), JSF * Node.JS(MEAN&MERN) * ASP.NET Typescript, Javascript(Angular, React.JS, Vue.js, [login to view URL],D3.js,Bokeh) Html5/CSS3 - Mobile & Game *React Native *Android(Kotlin, Java) *iOS(ObjectC, Swift) *Hybrid(Ionic and Xamarine) Cocos2d/Unity3d - Desktop&AI&Blockchain, Cryptocurrency&Trading Bot & OpenCV&&FFMPEG *C/C++(MT4, 5)/C#/Qt/GoLang *Python/R *Java/JavaEE *Electron * Machine Learning & NLP(Natural Language Processing)
$60 USD/hr
137 reviews
  • 100%Jobs Completed
  • 96%On Budget
  • 88%On Time
  • 21%Repeat Hire Rate


Recent Reviews

  • image of Rafa K. Project for Yong D. £100.00 GBP

    “this is the second time I deal with Yong he is so professional”

  • image of Weizhan C. Project for Yong D. $750.00 USD

    “Yong deliver a brilliant work. He is very dedicated and professional. Thank you very much for your effort”

  • image of Maciek S. Project for Yong D. -- 3 €240.00 EUR

    “Great job again. Thank you!”

  • image of John S. Jsp project $140.00 USD

    “Good work delivered on time”

  • image of Sammmm X. Project for Yong D. $220.00 USD

    “Great work always. Thank you so much.”

  • image of Meshari A. Develop a python project £150.00 GBP

    “She is great, thank you”



2013 - 2017 (4 years)


  • Preferred Freelancer Program SLA
  • C++ Level 1
  • US English Level 1


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