# Guy Sagy > Front end developer Location: San Mateo, California, United States Profile: https://flows.cv/guysagy Experienced web applications developer: * Front-End with JavaScript + ReactJS + Redux.js * Back-End with JavaScript + Node.js * Back-End with Python + Django ## Work Experience ### Senior Software Engineer @ Authentic8 Jan 2023 – Present | Redwood City, CA A senior software engineer focused on front-end development for Chrome Extensions: Building Chrome Extensions for a Remote Browser Isolation platform, enhancing the user / investigator experience with productivity tools for OSINT analysts. ### Senior Software Engineer, Media @ Udemy Jan 2021 – Jan 2023 | San Francisco, CA A Media Streaming Engineer: front-end development with JavaScript + React and back-end development with Python + Django + AWS Cloud. A member of the team responsible for delivering processed videos to millions of students across the world ensuring they receive high-quality content through a customized video player on any device and any client. Coding the VOD delivery and playback pipeline: encoding with FFmpeg, AWS Cloud development with Boto3 for S3, MediaPackage & CloudFront, and the video player rendering/playback. ### Software Engineer 4 - Full Stack @ Asurion Jan 2018 – Jan 2021 | Foster City, California, United States Design and development of e-commerce/web-portal products: - A senior full-stack developer for simplr.ai: implemented front-end with JavaScript + React + Redux and back-end with JavaScript + Node.js + Express + MongoDB. - A senior front-end developer for smarthomesupport.com: implemented with JavaScript \ TypeScript + React + Redux + Bootstrap. ### Software Engineer III @ Edmodo Jan 2017 – Jan 2018 | San Mateo, CA Edmodo is a global education network that connects teachers, students, parents and resources needed to reach their full potential. I perform continuous development of Edmodo's web-application's front-end (JavaScript \ HTML \ CSS) with React + Redux and Backbone.js frameworks. ### Principal Software Engineer @ Symantec Jan 2013 – Jan 2017 | CA - Mountain View A Full Stack web developer at the Website Security BU. Performing development of a web portal for SSL certificate orders' processing and delivery. Back-end development with C++, Java/Spring & front-end development with JavaScript, AngularJS (1.x) and jQuery. Development in Linux and Unix (Solaris) environments. ### Senior Software Engineer @ DC Systems Jan 2012 – Jan 2013 | Redwood City, CA DC Systems develops Smart Grid software for utilities and grid operators: I implemented multi-threaded utilities' management software on Windows with C++\MFC, C#\Windows Forms\.Net and Microsoft SQL. ### Senior Client Software Developer @ Cisco WebEx Jan 2010 – Jan 2012 Development of the WebEx Conferencing suite of applications. Enjoyed working on both Windows (C++, Win32 and ATL) and Mac OS X (Objective-C and Cocoa) versions of this popular software. ### Senior Software Developer @ Oracle Corporation Jan 2007 – Jan 2010 | Redwood Shores, CA Development of an Online Conferencing application. Started with the Windows desktop client with C++, Win32, MFC and 2D DirectX. Learned, on the job, Mac OS X desktop client dev with Objective-C and Cocoa - to help implement the Mac port of the same application. Finally, also did Java on Linux development - the server side Online Conferencing business logic. ### Senior Software Developer @ United Online Jan 2000 – Jan 2007 | New York, NY and Woodland Hills, CA Development of Windows desktop applications utilizing C++, Win32, MFC, ATL, and WTL. Participated in the design, design-reviews, coding and code-review phases of the various UOL's products. ### Software Developer @ Elron Software Jan 1997 – Jan 2000 Windows desktop and web applications with MFC, ATL/COM, ISAPI, MS SQL Server, Active Server Pages & JavaScript. ## Contact & Social - LinkedIn: https://linkedin.com/in/guysagy --- Source: https://flows.cv/guysagy JSON Resume: https://flows.cv/guysagy/resume.json Last updated: 2026-04-01