Lucas Barzan
Full-Stack AI Engineer at Satsuma.ai
Full-Stack AI Engineer with 6+ years of experience building production software across AI, fintech, and healthcare. Currently at Satsuma.ai, building systems that connect companies’ existing products and APIs to AI assistants through MCP. Spent over four years working on GooRoo Crédito’s payroll lending platform, co-architecting it from scratch into an ecosystem of ~15 microservices and building cloud-based solutions that helped drive a 5x increase in monthly revenue. Also built an AI document analysis pipeline using AWS Textract and OpenAI to turn payslips into structured, validated data for credit analysis. Works across the stack and owns features end to end, from database design and back-end services to user-facing applications, primarily using TypeScript, Node.js, React, Python, and AWS.
Featured projects
Coins and Notes Counter
A native Android personal finance app with 200,000+ downloads, ~700 ratings, and a 4.5+ average on the Play Store; also built a web version with TypeScript and React. Acquired by an international client in April 2021.
Pomozzo
A productivity platform based on the Pomodoro Technique, enabling task focus and progress tracking; developed with Node.js, Next.js, AWS, and TypeScript. Successfully acquired by an international client in May 2021.