Antonin Crestois

I work on turning complex customer challenges into practical, high-impact solutions across CRM, AI, automation, reporting, and systems design.

My focus is helping teams move from unclear requirements to concrete roadmaps, scalable implementation plans, and measurable business outcomes.

This site is a small public notebook: resume, project notes, and writing about agentic workflows inside customer systems. It is not HubSpot product documentation, and it is not a SaaS app with an API to call.