I'm Kayo Souza, a Senior Software Engineer, Tech Lead and AI Engineer based in Brazil.
I build systems that need to keep working under pressure. I'm Tech Lead of the nearshore team on Care Agent at Experity, an LLM agent for US urgent care running under HIPAA. Before that I led payments at Yooga, where the platform processed US$70M+, and built generative AI tooling at Nike. I'm also a co-founder of Topo Contábil.
This blog is where I document my process, my tools, and my thoughts on the state of software engineering. I write about technical problems and the gear I use, along with opinions on building with LLMs in production.