Marc Krejci

Marc Krejci

477 Subscribers

8-time founder. 7.5 years at Meta. 20+ years of zero-to-one launches.

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Marc Krejci will make validation your superpower in the AI era

Marc Krejci is the founder of Pathfinder Foundry. After 7.5 years leading product at Meta and decades working with hundreds of founders in Silicon Valley, he kept seeing the same mistake: people believing instead of testing.

AI has made building nearly free, but not knowing what's worth building. Marc teaches ProtoVibing and customer discovery as a skill, not a personality trait, turning guessing into evidence before founders bet their runway.

Building with leaders from:
Meta
Amazon
Microsoft
Apple

Alumni reviews

Austin

Live cohort
Co-Founder / Chief Business Officer · Blink Build Studios

AI ProtoVibing Sprint

Protovibing is enormously helpful in today's AI age. I highly recommend for any AI-native teams trying to validate and iterate quickly.

Phil

Live cohort
Founder · Project Furnish, LLC

AI ProtoVibing Sprint

I came in with a configurable seating idea and left with a sharp, testable bet. In five days Marc helped me lock in my ideal customer, stand up a landing page with the ProtoVibing app, and rework my interview questions. I moved further that week than I had in months on my own.

Rachel

Live cohort
Founder · Self employed

AI ProtoVibing Sprint

I can't say enough about this course and how Marc's structured approach saved me hundreds of hours I would have wasted building something that wasn't useful. The tips/tricks and tools Marc shared are priceless - not only in their application but his expert guidance in using the right tool in the right way for a given outcome - I would not have figured it out myself, and now I can confidently build whatever I dream!