Work
Four cases: LLM features in production at Deel, and three pieces of front-end infrastructure I built at XP Inc.
Deel · 2024 – presentTaking LLM features from demo to production at DeelWhat it takes to put a language model behind a button that people who run global hiring, payroll and HR will press. Patterns, not internals.React · TypeScript · Node.js · Sequelize · PostgreSQL · Playwright · Datadog · Sentry · LaunchDarkly · OpenAI API · internal AI serviceRead the case ›XP Inc. · 2020 – 2022Soma, XP’s design systemMulti-theme, technology-agnostic and multi-platform. I was Soma’s technical lead in 2020, and it launched publicly in a live session in February 2021.Design system · Design opsRead the case ›XP Inc. · Dec 2020 – Mar 2022Arsenal: a micro-framework for micro-frontendsBuilt at XP Inc. on top of Webpack Module Federation, so many teams could ship parts of the same product independently. Deliveries got about 40% faster.Webpack Module Federation · React · Gatsby · Jest · LernaRead the case ›XP Inc. · 2020 – 2022Chameleon: CSS-in-JS for web componentsA theming engine for Stencil and web components, about 8x faster than styled-components in our internal runtime-theming benchmarks.Stencil · Web components · Shadow DOM · Constructable StylesheetsRead the case ›