~/eduardo.dionisio $ whoami

Eduardo Dionisio

Senior C++ engineer. 20+ years building high-performance systems, trading infrastructure, and developer tools. I write about C++, low-latency, cache, and systems engineering.

🇧🇷 Também disponível em português

// Latest writing

How to Install n8n Free on Oracle Cloud and Keep It Running 24/7

Automationn8nOracle Cloud
Jul 21, 2026

C++ in High-Frequency Trading — What Actually Matters for Low Latency

C++HFTLow Latency
Jul 21, 2026

Cache Affinity: Why Your Data Shouldn't Travel Between Cores

PerformanceC++Cache
Jul 21, 2026
All articles →

// About

Eduardo Dionisio Fernandes. 20+ years in C++ — from real-time embedded systems to distributed trading platforms. Based in Brazil, working remotely for global teams.

I built Code Royale — a multiplayer coding battle platform — and maintain open-source projects across Go, TypeScript, and Python. I believe in conscious C++: knowing what happens between your code and the silicon.

More about me →