# Ryan Matsumura > . Location: San Francisco, California, United States Profile: https://flows.cv/ryanmatsumura Oodles of experience implementing web-based products, platforms and services. My comfort-zone is the Frontend, bringing Designer's comps to life. But this ain't my first rodeo: and I'm constantly pushing further down the stack. ## Work Experience ### Staff Software Engineer @ Together AI Jan 2024 – Present | United States ### Engineering Manager @ Change.org Jan 2021 – Jan 2024 | United States ### Engineering Manager, Web @ Athos Jan 2014 – Jan 2021 | RWC Proprietary EMG (Electromyography) enabled garments and AI measure how hard your muscles are working and provide insights and metrics to help athletes at all levels train better and smarter. - www.liveathos.com - Lead Frontend Architecture and development of modern web apps using React and Javascript - Negotiate and prioritize roadmap, requirements and backlog with Product and Engineering - Standardized SDLC, and optimize Development process as part of a cross-functional group - Created programs to shape company culture as part of the Office Improvement Team ### Principal Frontend Engineer @ 140 Proof Jan 2009 – Jan 2014 Advertising company that leveraged public social data from many sources to target relevant ads based on consumers' interests as indicated by their social activity across networks. - www.140proof.com - Came up with our first T-Shirt slogan: "You can't spell CAPITALISM without API" - Built custom extensible ad delivery system and contributed to the ad serving API - Lead the frontend development on a variety of products and social-web experiments including Twitter apps, iPhone webapps, "Responsive" websites, javascript, css, Ruby (Sinatra and Rails) - Currently rebuilding internal tools (using AngularJS, LESS) to support Sales/AdOps - Founding member of the Engineering team. 140proof.com ### Frontend Engineer @ 8020 Media, Inc. Jan 2008 – Jan 2008 Built the frontend for jpgmag.com. Developed rich javascript/dhtml components to match the printed magazine's aesthetic. Brought Product vision to life using php, semantic markup (xhtml/html), modular css and javascript. ### Principal Frontend Engineer @ rondavu, inc Jan 2007 – Jan 2008 Rondavu leveraged social data to provide insights into audience demographics for real-world events via third-party applications/widgets for MySpace and Facebook. ### Senior Software Engineer, Web @ Yahoo! Groups Jan 2006 – Jan 2007 Re-built groups.yahoo.com -- complete redesign and rearchitecture using modern best practices: semantic markup, css layouts, unobtrusive javascript using an Agile workflow. ### Software Engineer, Web @ Yahoo! Groups Jan 2005 – Jan 2006 Created an ajax/javascript widget for managing a user's location across the Yahoo network. The ULM (Universal Location Manager) allowed customers to implement a unified experience across products (weather, news, local search). ### Frontend Engineer @ Yahoo! Groups Jan 2004 – Jan 2005 Co-developed a process for separating the frontend and backend layers of Yahoo Games products. First implemented on gamesdomain.yahoo.com. This process became an example within the larger Yahoo Engineering/Web Development organization for "how to work with a frontend engineer". Re-built games.yahoo.com, gamesdomain.yahoo.com and videogames.yahoo.com from the ground up to be modular, semantic and easily extensible. ### Frontend Engineer Contractor @ Yahoo! Groups Jan 2003 – Jan 2004 Build web-frontends for Yahoo! Games. Initiated efforts to separate the frontend and backend. Overhauled (total redesign and re-architecture of) the games.yahoo.com website. ## Education ### BS in Advertising/Mass Communications San José State University ## Contact & Social - LinkedIn: https://linkedin.com/in/ryanmatsumura - Website: http://www.kirkwood.com --- Source: https://flows.cv/ryanmatsumura JSON Resume: https://flows.cv/ryanmatsumura/resume.json Last updated: 2026-04-01