Hi, I'm Cristian.

My story

I've spent 20+ years building, breaking, and fixing networks — from Rome's telecom exchanges to London's enterprise data centres to Geneva's cloud architectures.

The path went through IBM, Cisco, Riverbed, Microsoft and now AWS, where I lead networking and resilience strategy across EMEA. Along the way I picked up 57+ certifications across Cisco, AWS, Microsoft Azure, Riverbed, IBM, Wireshark and Aviatrix — but more usefully, two decades of pattern-matching on what actually goes wrong in production.

My book Cloud Networking and Resilience (Apress, May 2026) distils everything I've learned about keeping distributed systems reliable — from BGP routing and DNS failover to cell-based architectures and chaos engineering. This blog is the long-form companion: deep dives, post-mortems, and the patterns I keep coming back to.