About
Eduardo Dionisio Fernandes
Section titled “Eduardo Dionisio Fernandes”C++ Software Developer ~ AI Engineer. 20+ years writing performance-critical code — from real-time embedded systems to distributed trading platforms, build systems, and developer tooling. Based in Brazil, working remotely.
What I do
Section titled “What I do”- C++ systems engineering — low-latency, lock-free, cache-aware. The kind of code where every nanosecond counts.
- AI engineering — applied AI, local RAG pipelines, Vision Transformers, automation with n8n and LLMs.
- Performance architecture — designing systems that scale without falling apart under load.
- Developer tools & platforms — built Code Royale, a multiplayer coding battle platform with real-time WebSocket gameplay, Elo ranking, and programmable bots.
Philosophy
Section titled “Philosophy”I believe in conscious C++ — understanding what happens between your source code and the silicon. Every instruction, every cache line, every branch prediction matters when you’re building systems that process millions of events per second.
“The bottleneck isn’t the CPU. It’s the path between the CPU and memory.”
I write about this on my blog and share daily on X, where I’ve published over 10,000 posts and built an audience of 8,000+ developers.
Open source
Section titled “Open source”- Code Royale — Multiplayer coding battles. Go backend, Next.js frontend, WebSocket, Judge0, Elo ranking.
- Wheel of List — Random picker wheel with 10+ tools. Vanilla JS, GitHub Pages.
- Amorfy — Relationship psychology content site. Static HTML, Python content generation.
Where to find me
Section titled “Where to find me”- X / Twitter — 8K+ followers, daily posts on C++, AI, and career
- GitHub
- YouTube
This site
Section titled “This site”Built with Astro + Starlight. Dark by default. No trackers. RSS available.
Available for remote C++ roles, consulting, and technical writing.