GUILHERME
CARVALHO

I joined VTEX in 2021 as an Engineering Manager, leading the team that built FastStore — VTEX's modern storefront framework. In 2023 I moved into a Staff Software Engineer role, focused on bringing the FastStore platform to other products inside VTEX, redefining it for an AI-first world, and helping raise code delivery quality across the vertical. Most of my work here lives in Node.js, TypeScript, and distributed systems.

Before that, I co-founded Guava Software in 2011 — a boutique Ruby/Rails development studio based in Recife. For a decade I acted as lead developer across a wide range of client projects: True & Co, MetaMaster, PetPlate, Endossa, and others spanning e-commerce, fintech, and civic tech. Our stack centered on Ruby on Rails and Python on the backend, Vue.js and React on the frontend. VTEX acquired Guava in 2021.

I studied Computer Science at Centro de Informática, UFPE, where I also completed my Master's focused on ensemble methods for machine learning. That work led to a couple of published papers — on pedestrian detection using PCA-based reconstruction and on combining diversity measures for ensemble pruning — in collaboration with researchers at UFPE and UFPR.