Built by physicists who code
Raindog AI is a technical consulting firm founded by two PhD physicists with a decade of experience building AI systems for research, startups, and Fortune 500 enterprises.

Zak Brown, Ph.D.
Co-Founder & AI Research Engineer
PhD in Physics from William & Mary, where he studied lattice QCD and computational particle physics. Over a decade of experience building NLP and AI systems across finance, legal tech, and enterprise SaaS. Has led ML teams at Kensho (S&P Global), Balto.ai, Capital One, and most recently Thomson Reuters Labs, where he built one of the first agentic AI research systems deployed to market.

Katia Mastropas, Ph.D.
Co-Founder & AI Strategist
PhD in Physics from William & Mary, specializing in lattice QCD and meson spectroscopy. A data science leader with deep experience in insurance, financial services, and enterprise analytics. Previously Senior Director of Data Science & Analytics at Northwestern Mutual, and co-founded Charmdata, a business intelligence software company. Bridges technical depth with strategic leadership.
Our Approach
Ship working systems, not slide decks
Own the outcome, not just the hours
Teach while we build—no knowledge silos
Favor pragmatic solutions over perfect ones
