Senior Full-stack AI-native SaaS Engineer

Raphael Barreiro is a Senior Full-stack Engineer with 6 years of experience, specializing in building AI-native SaaS products. He co-founded a successful Brazilian B2B SaaS, leading end-to-end product development for 900+ users and 2,000+ projects. His expertise includes building AI assistants using RAG, embeddings, and vector search to process and retrieve structured regulatory data (Brazilian legislation). He has experience as a Founding Engineer at a Sweden-based startup, owning the codebase and product architecture from pre-seed through funding and team scaling. Raphael has also built AI-driven systems for US and EU companies, including underwriting workflows (fintech, US) and real-time meeting intelligence pipelines (Germany). He holds a degree as a Systems Analyst and Developer and is currently completing an MBA in Big Data. He is looking for remote contract opportunities.