# George Su > Staff Software Engineer (former tech lead at Twitter, Salesforce eng teams) Location: San Francisco, California, United States Profile: https://flows.cv/georgesu Staff level software engineer with over 20 years of experience, specializing in high scale backend systems. Former tech lead of engineering teams at Twitter and Salesforce. ## Work Experience ### Software Engineer (IC5) @ Blend Jan 2023 – Present | San Francisco, CA Led performance, scalability, and production stability for core platform - load testing, capacity planning, autoscaling, and database/cache tuning. Improved product configuration publish latency by 8x with code and SQL optimization. Built real-time document sync service on CRDTs, with upstream contributions to open source library. ### Staff Software Engineer @ Twitter Jan 2018 – Jan 2022 ● Served as Tech Lead of Timelines Infrastructure Team; supported and optimized production services that generated ~$4B annual revenue ● Served as Project Lead and creator of new service that hosts all machine learning (ML) based scoring for home timeline ranking algorithm ● Introduced a graceful degradation system that auto scales to handle traffic spikes up to 100k requests per second, which helped reduce high severity incidents in the service by 100% ● Built the backend for Bookmark Folders for the initial launch of Twitter Blue ### Senior Software Engineer @ Twitter Jan 2015 – Jan 2018 | San Francisco Bay Area ### Software Innovator @ Originate Jan 2013 – Jan 2015 Developed backend for Angie’s List to help homeowners and service providers manage jobs. Worked with several startups on a consulting basis to create and develop new applications. ### Founder @ whathavei Jan 2012 – Jan 2013 Launched beta for whathavei, a social shopping list application in the cloud. It allows users to post and share information about all the products they have, want, and like. Launched Fave music iOS app, a personalized calendar of upcoming new album releases. ### Senior/Lead Member of Technical Staff @ Salesforce.com Jan 2006 – Jan 2012 Led Chatter development team that worked on Chatter Groups and Chatter Communities. Responsible for architecture design and review, release planning, feature implementation in Java/SQL/HTML/JavaScript, code reviews, test automation, performance testing/tuning, production support. Senior engineer on team that launched Salesforce Ideas, the innovation management application used by Dell and Starbucks to harness the ideas and opinions of their customers. Developed back end for Salesforce Customer Portal, used by many businesses to run customer services sites in the cloud. ### Senior/Lead Software Engineer @ International Asset Systems Jan 2002 – Jan 2006 | San Francisco Bay Area Led full life-cycle development of software releases, adding features for data capture and online tracking of shipping container locations, repairs, cost estimates, inventory, and reservations. Performed use case analysis, object and data model design, J2EE code implementation, and development of web-based user interface. Completed data integration services, functional/load testing, and production maintenance/support. ### Software Engineer @ Evolve Software Jan 2000 – Jan 2001 Developed J2EE software application used by professional service companies to automate their business processes. Added and improved features to support tasks such as managing projects, resource staffing, time and expense tracking, sales opportunities, and forecasts. Developed back-end code and web interface for advanced scheduling methods for project assignments. Developed a platform independent email and web-based interface to deliver and process notification messages and requests for staffing resources. ### Software Engineer @ Infoseek Jan 1998 – Jan 2000 Worked on team that designed, implemented, and launched GO.com chat system, allowing thousands of users to communicate in chat rooms through a web browser. Developed a cross-platform, browser independent chat client written as a Java applet. Created GO.com chat web site to host chat rooms and allow users to find rooms based on popularity or topic. Created web interface used to create, edit, sort and view chat room information stored in a database. Wrote automated chat "bot" agents to monitor chat rooms, respond to user activity, and provide meaningful information, such as stock quotes, to users. Developed web interface and functionality for GO.com sports, weather, and games sites. Developed personalization features for GO.com to allow users to customize weather reports, sports scores, and sports headlines. ### Software Intern @ Advanced Micro Devices Jan 1997 – Jan 1997 Developed software tool written in C++ to detect errors in integrated circuit designs. Designed and implemented graphical user-interface. Wrote software utilities to improve development cycle of integrated circuits. ## Education ### Bachelor of Science (BS) in Computer Science University of California, Berkeley ## Contact & Social - LinkedIn: https://linkedin.com/in/georgewsu - Portfolio: http://www.favemusicapp.com/ --- Source: https://flows.cv/georgesu JSON Resume: https://flows.cv/georgesu/resume.json Last updated: 2026-04-11