I'm Phablo Vilas Boas, a Senior Full Stack Engineer with 9+ years of experience delivering systems to production. Here, the focus is lab work: tests, experiments, prototypes, and practical learning.
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5 entries
Jun 13, 2026 • 18 min read
A practical lab about integrating a Node.js backend for authentication, a Python Backend for Agents in Lanchain, and a frontend using JWT authentication, FastAPI dependencies, MongoDB status tracking, Strategy Pattern and the Proxy pattern.
Jun 07, 2026 • 11 min read
A practical lab about using SRS documents, ADRs, UI guidelines, specs, plans, and AI coding agents to build a scalable authentication frontend without losing architectural control.
May 28, 2026 • 7 min read
This technical lab outlines the creation of a blog reviewing application using FastAPI and Langchain. The application transforms raw Markdown notes into structured blog posts, extracts and reviews code examples, translates content into Brazilian Portuguese, and generates PDFs of the output.
May 08, 2026 • 4 min read
Learn how to refactor your Node.js API by separating routes from controllers to enhance maintainability and readability.
May 06, 2026 • 1 min read
After 9+ years building software, I wanted a place to document experiments, trade-offs, and practical lessons from real engineering work.