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Kei Yoshikoshi

Kei Yoshikoshi

Building the future of voice AI at Meta Superintelligence Lab

kei
San Francisco, California
Joined December 2025

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Summary

Kei Yoshikoshi is a Staff Software Engineer at Meta, specializing in Voice AI within Meta's Superintelligence Lab. His recent role as Head of Product & Engineering at PlayAI, a voice AI company, led to its acquisition by Meta, highlighting his expertise in building advanced conversational AI models. kindredventures
He has a strong entrepreneurial background as the Co-Founder and CTO of Contribution Labs (also known as DeForm), a blockchain startup focused on creating on-chain tools and a Web3 platform called Mint Kudos. This platform utilizes non-transferable digital badges (NTTs) to reward community contributions and build on-chain reputation, demonstrating his leadership in the Web3 space. theorg+1
Kei has experience in scaling early-stage technology companies, notably as the Founding Engineer and first employee at Lumos, an a16z-backed security startup. This role involved significant contributions to the initial development and growth phases of the company. theorg+1
His career includes foundational software engineering roles at Microsoft, where he focused on Azure services and blockchain technology, showcasing his expertise in cloud infrastructure and distributed ledger systems. He also gained early industry experience through internships at major financial institutions like JPMorgan Chase & Co. and Morgan Stanley, as well as Hitachi. theorg
Kei holds a B.S.E. in Electrical & Computer Engineering and Computer Science from Duke University. During his time at Duke, he participated in interdisciplinary projects such as 'Live Processing and Live Art: Performance and Technology', combining engineering with art, and contributed to a student project named 'Confucius'. crunchbase+2

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