Valentin Galfré

Blog

Updated 23 Oct 2026

Essays on the work and the opinions around it, newest first.

Essays

A shop that answers at two in the morning Twenty-four hours in Santa Fe, my brother on the other keyboard, and a product for my father: photograph what you want to sell and get a shop with an employee that negotiates for you. The direction, not the plan Not a plan. The direction I would like to be walking: agents that touch the world, a product that stays honest, a degree I am going to finish. Every garment in a photo How pilcha finds every garment in a photo and returns the closest thing an Argentine store sells right now. Mostly plumbing. Invisible engineering The best software is the one nobody talks about. Why excellence that goes unnoticed is the hardest to sell and the most valuable to build. Code now has two readers Humans and models read the same file. What changes in how we name, shape and document code when the second reader has no context and no coffee. Competing against yesterday Being competitive without stepping on anyone. The only useful comparison is with your own system from last week. Staff Engineer without a manual Nobody in a startup tells you what a Staff Engineer does. How I defined the role: platform, AI, vendor decisions, and the hard conversations nobody else wanted. Microfrontends that let you sleep What it takes for eight teams to deploy independently on Latin America's highest-traffic platform without waking anyone up. Performance on surfaces the whole country sees Optimizing when every millisecond is measured in sales. Method over heroics on Mercado Libre's busiest pages. The tests nobody asked for Joining a software factory as the most junior engineer and fixing the thing nobody had time for: every release broke something that used to work.