v37.io

Open: one fractional CTO seat · Q3 2026

I build AI infrastructure that has to work twice.

I'm Daniele Salatti — fractional CTO and AI engineer for technical founders. The recipes I publish at v37.ai are written to the same bar I bring to client work.

Past engagements

Amazon logoMeta logoGucci logo

What I do

Two ways to work together. Strategic seat or bounded project. Either way, the same engineer doing the work.

Fractional CTO

Strategic technical leadership for technical founders. Architecture, hiring, investor due diligence, AI/ML guidance. A bounded engagement — I work on a small number of these at a time.

  • Technical roadmap & architecture review
  • AI / ML architecture guidance
  • Hiring & engineer vetting
  • Investor due diligence prep
  • Build-vs-buy decisions
From $2K / month Schedule a call →

AI engineering & advisory

Project-shaped AI infrastructure work — the same approach I publish at v37.ai, applied to your stack. Reproducible fine-tuning, agent memory, evaluation harnesses.

  • Reproducible fine-tuning recipes
  • Persistent agent memory architectures
  • Evaluation harnesses & rubrics
  • Local-first inference setups
  • AI architecture review
Project-based Schedule a call →

How I work

Four opinions, in case they save us a discovery call.

Specs first, code second.

I write down what should happen and how I'll know it did. The spec is the contract — the implementation is the easy part once the spec is right. This is how the work survives me leaving the room.

Reproducible by construction.

Pinned versions, deterministic seeds, the artifact built twice with diffed outputs. If I can't produce the same thing twice in a row, the work isn't done. The recipes I publish at v37.ai are written to that bar.

Tests, not slides.

I ship code with the tests that prove it works, not a deck about it. If a stakeholder needs a deck, the tests are still the ground truth — the deck is a translation.

Bounded engagements.

I work on a small number of things at a time. That's how the work stays good. If I'm the right fit for what you need, I'll say so; if I'm not, I'll say that too and point you somewhere better.

About

I'm Daniele Salatti. I've spent fifteen years building data-intensive distributed systems — Amazon, Meta, The Trade Desk — and the AI infrastructure work that came out of that.

v37.io is the consulting face of the same engineer who publishes open recipes at v37.ai. When you hire v37, you get me — not an account manager, not a handoff to a junior. The same person who wrote the deterministic-stack reproducibility kit will sit in your CTO chair or write the AI infrastructure your product depends on.

That bounds what I take on. I work on a small number of engagements at a time, and the work has to be the kind I'd publish about — reproducible, opinionated, defensible. If that's what you need, the call is short.

Contact

30 minutes, honest read.

No pitch, no pressure. We talk about where you are and whether I'm the right fit. If I'm not, I'll point you somewhere better.