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leonardowsr/README.md

๐Ÿ‘‹ Hi, I'm Leonardo, a full stack developer

๐Ÿ’ก Currently leveling up my knowledge in system design, especially backend architecture.


๐Ÿ› ๏ธ Tech Stack

๐ŸŽจ Frontend

  • React
  • Next.js
  • TailwindCSS
  • Material UI ...

โš™๏ธ Backend

  • Node.js
  • GraphQL
  • NestJS
  • Koa.js ...

๐Ÿ—„ Databases & Storage

  • PostgreSQL
  • MongoDB
  • Redis
  • Supabase ...

๐ŸŒฑ Currently Learning

  • Distributed systems
  • Event-driven architecture & queue-based systems
  • More about design system

๐Ÿ“ซ Connect With Me


"Good architecture is not about complexity โ€” it's about clarity, scalability, and intent."

Pinned Loading

  1. leaky-bucket-bank leaky-bucket-bank Public

    A modern full-stack banking application built with Next.js, NestJS, and PostgreSQL. Features JWT authentication, PIX key transactions, real-time updates via SSE, rate limiting with leaky bucket algโ€ฆ

    TypeScript 3

  2. iso8583-simulator iso8583-simulator Public

    TypeScript 3