Hi, I’m Daniel ‘f0o’ Preussker, a Principal Architect & Staff Engineer based in Stockholm, Sweden.

I spend my time architecting, building, and occasionally breaking things. My focus usually hovers around high-availability distributed systems, hyperscale environments, and critical network infrastructure. Basically, if it involves bridging the gap between kernel-level networking (like BGP or eBPF) and modern cloud-native stacks (Go, Rust, Kubernetes), I’m probably interested.

This site is my public scratchpad. It’s where I dump my research, write about interesting technical rabbit holes, and document the systems I’ve wrestled with over the years.

Feel free to poke around the Posts , Projects , and Research if you want to see what I’m currently working on. If you’re just looking for the professional timeline, the CV is right there.