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Achievement: Pull Sharkx3Achievement: Pair Extraordinairex2Achievement: QuickdrawAchievement: YOLO

Achievements

Achievement: Pull Sharkx3Achievement: Pair Extraordinairex2Achievement: QuickdrawAchievement: YOLO

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imateusdev/README.md

Hey, I'm Mateus 👋

Tech Lead living between Rust and TypeScript. I like things that take a beating in production: payments that can't go down, latency that has to stay low, and migrations nobody notices happened.

Right now I lead a squad on a payments platform doing R$4M+/month and 14k+ transactions a day. When I'm not leading, I'm rewriting backends in Rust or digging through Windows process memory for fun. 🦀

🔭 What I'm working on

  • ⚡ Multi-gateway payments platform with automatic failover
  • 🦀 Migrating Node backends to Rust (Axum + SeaORM + Tokio) — zero downtime
  • 🔬 mem-hunter — a Windows memory-analysis toolkit (personal R&D project)

💬 Ask me about

Rust · system architecture · performance & SQL · security (RBAC, IDOR) · observability · tech leadership

🎯 Stuff I'm proud of

  • Checkout from 800ms → 65ms by moving to async queues
  • Critical service rewritten in Rust: 20s → 3s
  • CI builds from 7min → 2min by adopting Bun
  • Cloud costs −60% by migrating to self-managed VPS

🧰 Stack

Rust TypeScript Next.js React Bun Node.js

PostgreSQL Redis Docker Cloudflare Grafana

And when things get low-level: C# · C/C++ · Win32 · x86-64 · reverse engineering 🛠️

📧 imateusdev@gmail.com

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