Joel Martinez · GTM Engineer
I help CEOs and revenue leaders model the market, segment it, and test their hypotheses in days, not quarters — then build the data and AI systems that keep it running.
How I help revenue leaders
TAM modeling and segmentation built from real signals, then tested: is the segment real, does the message land, is the vertical worth a hire. Answered in weeks.
Every account and customer in one place, synced to every channel. Any campaign list becomes a query, and reps get call prep, briefs, and warm-intro maps.
Campaigns across outbound, paid, LinkedIn, and account-based marketing, plus growth experiments. Each result sharpens the model for the next one.
Cold email is table stakes. It should run in the background while everything above gets built. I've done it in SaaS, healthcare, hardware, mineral rights, and M&A.
See the full menu ↗The moment
Big things are happening for AI in go-to-market. A good GTM engineer, used properly, produces growth and learning that compound. Most companies only use one for the part that doesn’t: cold email.
The letter — launching this week
AI is rewriting go-to-market. This is what is actually working, written for the people who own the number.
TAM models, segmentation, experiments, signals, and the systems behind them. What I'm building, what converts, and what's noise.
Proof — systems I built
Also shipping
Writing
Cold email is table stakes Issue 01 ↗ Go-to-market engineering at Engineered Arts Note ↗ Dumb Questions I Asked Claude Code X ↗ What is Rizz Dev? X ↗