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Pieter Ouwerkerk

Pieter Ouwerkerk

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Joined January 2026

About

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San Francisco, California, United States
founding engineer at Happenstance. co-founder of RunKit (acquired by Stripe) and Anodize. UChicago ’12 & Y Combinator S2016 alumnus. former TC39 delegate for Stripe and RunKit (2016-2023).

Notes

XBXavier Bowsaid
POPieter Ouwerkerk
is one of the most impressive software engineers they've worked with.

Mar 5, 2026

DLDaria Lebedevasaid they would turn to
POPieter Ouwerkerk
for solving especially tough software engineering challenges.

Feb 6, 2026