Yun Fu
About
Yun Fu is from Sunnyvale, California, United States. Yun is currently CTO and Co-Founder at Otter.ai, located in Mountain View, CA. In Yun's previous role as a Head of Infrastructure at Particle Media, Inc., Yun worked in Santa Clara, CA until Aug 2016. Prior to joining Particle Media, Inc., Yun was a Engineering Director at Alohar Mobile (acquired by Alibaba) and held the position of Engineering Director at Palo Alto, CA. Prior to that, Yun was a Principal Software Engineer at Yahoo from Feb 2005 to Dec 2011.
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Yun Fu's current jobs
America's Best Startup Employers 2026, #14, Forbes AI Apps 50: Where Startups Spend on AI, a16z, 2025 America's Best Startup Employers 2025, Forbes CNET Editors' Choice Awards for Best of AI, 2024 The Top 50 Gen AI Web Products, a16z, 2024 America's Best Startup Employers 2024, Forbes The Best AI Apps to Try Now, Wall Street Journal, 2023 Editor's choice on iOS App Store, 2021 Best of 2018 by Google Play The best apps of 2018 by Mashable The 25 best new apps of 2018 by Fast Company The 100 Best Android Apps for 2019 by PC Magazine 14 of the best new apps to download now by Business Insider
Yun Fu's past jobs
Principal Software Engineer, User Understanding Team in KAP (Knowledge and Personalization), 2011 Principal Software Engineer, Advanced Products Team in YOS (Yahoo Open Strategy), 2009-2010: . Developed a social search engine for Yahoo user social updates. The search engine is exposed to external developers as Yahoo Updates Firehose API. Also built a Yahoo APP as the front end of the search engine. . Performed data mining on Yahoo user social updates and social connections for social targeting. Senior Engineer Manager, Aggregator Team in YOS (Yahoo Open Strategy), 2008: . Led a team to build an aggregator system to aggregate Yahoo users' social activities on external websites. . Led the team to build a screen scraping system to extract users' contact lists from external email websites. . Built a credential store to store users' credentials (password or authentication tokens) for external websites. Senior Software Engineer, Yahoo Answers Team, 2007: . Lead engineer in developing the back-end platform for Yahoo Answers, a leading social question and answer website. Senior Software Engineer, Bookmarks Team, 2006: . Developed a cross-colo data replication system for synchronizing user bookmarks among distributed databases. . Developed a thumbnail backend to generate and store thumbnails for websites. . Developed the backend of a new version of MyWeb 2.0 and migrated it to Yahoo Bookmarks. Software Engineer, MyWeb Team, 2005: . Developed the backend of MyWeb 2.0, a social bookmark website integrated with Yahoo Search. . Developed a bunch of daemons and algorithms to track popular tags and bookmarks generated by users. . Developed a caching system using shared memory to store computationally expensive social data.