Hi, I’m Marcos

Reliability engineer based in Madrid who loves building distributed systems that actually work in production. Previously at Atani (defunct), where I designed real-time trading systems and mentored teams.

Philosophy

I believe in:

• Systems that survive production - Not just demos, real-world stress testing
• Operational excellence - If it’s hard to debug at 3 AM, it’s not ready
• Team-first approach - Great technology comes from great people
• Learning constantly - The field moves fast, adaptation is key

Why I Do This

I got into backend engineering because I love making complex systems simple and reliable. There’s something deeply satisfying about building infrastructure that just works - systems handling millions of requests while everyone sleeps peacefully.

The cryptocurrency space adds an extra layer: real money, real users, real consequences. Every millisecond of latency matters, every bit of downtime costs.

Beyond Code

Languages: Besides programming, I speak Spanish (native), English (advanced), Portuguese (B1), and Chinese (HSK4). I’m fascinated by how different cultures approach problem-solving.

Learning: Always picking up new tech. Recently diving deeper into Rust and Zig for ultra-low latency components.

Open source: I contribute when I can and maintain small libraries solving specific problems I’ve encountered.

Interests

• Distributed systems design patterns
• Message streaming architectures
• Cross-cultural communication
• Language learning
• Making complicated things simple

Want details? Check my career timeline.

Let’s talk: contact@sonirico.dev · gpg@sonirico.dev (key)