Summary
James Critelli is a growth leader with eight years of experience building and scaling revenue systems for startups and growth-stage companies from NYC. He has co-founded and led Stackmatix to a profitable seven-figure business that supported over 100 startups—helping clients win follow-on investment, acquisitions, and an IPO—then transitioned to advising via Critelli Consulting while running growth at Relentless. His background blends hands-on technical fluency (Hack Reactor software engineering training and automation work at MightyHive) with deep GTM and programmatic ad expertise across major brands. An active angel investor, he backs early-stage teams across consumer, healthcare, and B2B tooling, signaling a taste for product-market-fit and mission-driven ventures. Notably, his chess pedigree as a former nationally ranked junior and FIDE Master hints at strategic thinking and competitive discipline he applies to growth playbooks.
8 years of coding experience
8 years of employment as a software developer
Software Engineering, Software Engineering at Hack Reactor
B.S. Applied Economics and Management, B.S. Applied Economics and Management at Cornell University
London School of Economics and Political Science
Darien High School
English, Spanish