Rogério Chaves
Co-Founder at LangWatch
Amsterdam, North Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolRogério Chaves is a seasoned software engineer and entrepreneur with 14 years of experience building products from startup MVPs to global-scale systems, currently co-founding and leading engineering at LangWatch in Amsterdam. He combines hands-on full-stack development and engineering management—driving stable fintech payments launches and conversion-focused experimentation at Booking.com—with a deep focus on iterative, safety-first approaches for LLM applications. Rogério has a track record of rapid delivery under pressure, from recovering large payouts during COVID-19 to shipping new PSP integrations that processed millions shortly after launch. He’s a pragmatic advocate for modern frontend practices (early React/Redux adoption) and contributed to impactful open-source civic tech work using Elm on the Serenata de Amor project. Backed by Antler, he’s building tooling to harden and automate LLM testing and iteration—bringing product-grade reliability to probabilistic AI systems. Rogério blends technical breadth, product sense, and operational rigor to help teams ship resilient, measurable outcomes.
14 years of coding experience
13 years of employment as a software developer
Computer Technician, Computer Technician at ETPC - Escola Técnica Pandiá CalógerasBachelor's degree Information Systems, Bachelor's degree Information Systems at Centro Universitário de Volta Redonda - UniFOASebrae
English, Spanish, Portuguese, Dutch
Github Skills (7)
uid10
front-end-development10
ui-design10
elm10
material-design9
open-data5
data-science4
Programming languages (24)
Github contributions (5)
okfn-brasil/serenata-de-amor
Nov 2016 - Jan 2017
🕵 Artificial Intelligence for social control of public administration | **This repository does not receive frequent updates. Check out the README**
Role in this project:
Front-end Developer
Front-end DeveloperContributions:21 commits, 3 comments in 2 months
Contributions summary:Rogério primarily focused on developing the front-end user interface using Elm. Their commits reveal significant work in splitting and refactoring the Elm code base into distinct modules for input handling, view rendering, model management, and update logic. This involved creating and modifying Elm files related to document display, search forms, and map integration, as well as integrating external components such as material design elements. These changes suggest a focus on improving the structure and maintainability of the front-end application.
artificial-intelligencemachine-learningdata-sciencepoliticscivic-tech
rogeriochaves/memekombat
Jan 2012 - Jan 2022
Contributions:245 commits, 13 pushes, 1 branch in 10 years 1 month
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