All Services Programming & Development Web&Mobile developer $25/hr · Starting at $300 I am Changsheng Gong, full time developer. My Skills are following as: I feel proud to tell that 80% of my clients come back for either more projects or maintenance. Feel free to contact me any time! Thanks About $25/hr · Ongoing Download Resume I am Changsheng Gong, full time developer. My Skills are following as: I feel proud to tell that 80% of my clients come back for either more projects or maintenance. Feel free to contact me any time! Thanks Skills & Expertise AndroidAngularJSCodeIgniterCSSHTMLiOSJavaScriptjQueryMobile DevelopmentMongoDBMySQLNode.jsPHPReactReact App DevelopmentSoftware DevelopmentWeb Development 0 Reviews This Freelancer has not received any feedback. Browse Similar Freelance Experts CodeIgniter DevelopersMongoDB DevelopersMySQL DevelopersSoftware DevelopersHTML DevelopersAngularJS DevelopersJavaScript DevelopersPHP DevelopersNode.js DevelopersCSS DevelopersjQuery DevelopersWeb DevelopersMobile App Developers