# Chihung Yu > Software Engineer at Facebook Location: Sunnyvale, California, United States Profile: https://flows.cv/chihung Hands-on experience in building end to end web applications using Ruby on Rails, Sails and Express, Play for Scala, Angular, Backbone, Backbone Marionette, React. Passionate about web development, programming. Multiple personal projects. 1. Built three different crawlers, total crawled over two million links and pages. 2. Profolio website http://chihungyu.herokuapp.com/, all original creations. 3. New project based on data crawled, data analytic and scheduling. ## Work Experience ### Software Engineer @ IT Company Jan 2016 – Present | Menlo Park, CA QuickPromotion provides a one-stop-shop solution for internal product teams to develop, manage, review and deliver their promotional content to billions of users on hundreds of surfaces across the Facebook family of apps. - Revamped the entire QP tooling to streamline promotion content, pacing and targeting configuration, experiment setup, and the review process. - Collaborated with the Central Notification Platform team to design and build the notification for QuickPromotion. It has become one of the highest utilized channels used for delivering QP. - Designed and built the Audit Tool to automate mobile preview generation for QPs. It fundamentally solves the need to validate promotion manually and saves hours of developers and marketers time for each launch. In H1 2021, I continue to grow its impact by working with other teams such as FB AYMT and IG AYMT to onboard it. At Culture Moments, we celebrate holidays with billions of users by showing personalized and meaningful promotional units. - Designed and built products such as holiday cards, holiday highlights and contributed to the company's top-line metrics. - Designed and built a pipeline for querying/filtering/ranking content to generate unique and personalized content via async tier. ### Staff Software Engineer Technical Lead @ WalmartLabs Jan 2016 – Jan 2016 | Sunnyvale ### Senior Software Engineer Technical Lead @ WalmartLabs Jan 2014 – Jan 2016 | Sunnyvale, CA - Designed and developed more than thirty tools for conducting various functions, e.g., performing site evaluations, managing search engine configurations, managing content, updating production data in real-time. - Built the multi-tenancy tooling platform for supporting Walmart eCommerce, Sam's Club, and Walmart Grocery. - Pattern (10452705) - Designed and built the Universal Evaluation Framework via Chrome extension. We predominantly use it to evaluate the company and competitors' search results and filters. - Pattern (10452705) - Designed and built the Manual Shelves. It enables managing, updating, and selling items in real-time on the Walmart eCommerce website and has become a significant revenue driver. ### Software Engineer @ Spokeo Jan 2013 – Jan 2014 | Pasadena, CA - Built SEM (Search Engine Marketing) framework used for AB testing. It contributed more than 50% of paid market revenue and 10~20% of its total revenue. - Revamped the reverse-address search UI and reduced the perceivable page load time by more than 50%. ### Software Engineer @ Kuapay, Inc Jan 2012 – Jan 2013 | Santa Monica, CA - Built an interactive single-page app for managing users and merchants. ## Education ### Bachelor of Science (BS) in Computer Science UCLA ## Contact & Social - LinkedIn: https://linkedin.com/in/chihung-yu-64307151 --- Source: https://flows.cv/chihung JSON Resume: https://flows.cv/chihung/resume.json Last updated: 2026-04-01