All Services Programming & Development Programming & Software Chat app development $50/hr · Starting at $1K Highly skilled and energetic engineer, and I deliver excellent service built upon an open dialogue with my clients.I developed live chat application which contains public/private rooms and functionalities of direct messages, text/file message, voice message, and image/gif file preview.I can develop real time chat app and able to integrate with live site. About $50/hr · Ongoing Download Resume Highly skilled and energetic engineer, and I deliver excellent service built upon an open dialogue with my clients.I developed live chat application which contains public/private rooms and functionalities of direct messages, text/file message, voice message, and image/gif file preview.I can develop real time chat app and able to integrate with live site. Skills & Expertise APIApp DevelopmentIntegrationJavaScriptJSONLiveChatOpen SourceProgrammingRuby on RailsRubyGemsSoftware DevelopmentSQLVersion ControlVoice-OversWebSocket 13 Reviews Richard One says, Great UI work like always... for Full-stack developer - React on Apr 01, 2023 Richard One says, Great UI work.. for Full-stack developer - React on Mar 24, 2023 Richard One says, Great work like always. for Full-stack developer - React on Mar 22, 2023 Richard One says, Excellent job like always. Look forward on continuing working with ZhengShi. for Full-stack developer - React on Mar 14, 2023 Richard One says, Great job like always. Highly recommend ZhengShi. for Full-stack developer - React on Mar 09, 2023 Sign up or Log in to see more. Browse Similar Freelance Experts Web DevelopersJavaScript DevelopersE-Commerce ExpertsPHP DevelopersRuby on Rails DevelopersComputer ProgrammersSQL DevelopersMathematics ExpertsMachine Learning EngineersAPI Integration DevelopersJSON DevelopersMongoDB DevelopersTypeScript DevelopersNode.js DevelopersSoftware DevelopersApp DevelopersVoice Over ArtistsReact Native DevelopersBlockchain DevelopersMagento DevelopersStripe DevelopersAdobe XD DesignersAPI DevelopersIonic Developers