I build engineering organizations that ship — and people who want to stay.
I'm Guillem Fernandez, an Engineering Director with 25+ years across startups, scale-ups and global enterprises. I treat the human side of engineering with the same rigor as the technical side — that's what I write and coach about.
Three lenses on the same problem
Great engineering organizations aren't an accident — they're designed, on purpose, at every layer.
Team & org design
Building high-performance teams from scratch, or untangling fragmented setups into a single, high-trust delivery engine — across time zones and cultures.
Legacy to modern
Leading transformations from monolith to microservices, defining multi-year roadmaps that balance delivery speed with long-term technical health.
Quality & practice
Embedding CI/CD, TDD and quality-first practices so reliability and speed stop being a trade-off — and start compounding.
The Engineering Protocol Stack
A field guide to the human protocols behind every engineering organization — how trust, communication and process layer on top of each other the same way CPU, LAN and WAN layer on top of each other in a network stack. Written for engineering leaders who want their teams to actually ship.
Recent essays
Why do we follow our leaders?
People rarely quit companies — they quit leaders. A short breakdown of the fear-based and benefit-based reasons we choose to follow the people we work for.
How does your memory work?
Why can you recognize 30 faces out of 200 photos, but barely recall 5 names out of a list of 200? A short dive into why we're visual...
Are you able to do multitasking?
Your brain isn't a multi-core CPU. A two-minute pen-and-paper exercise proves that what feels like multitasking is really expensive task-switching.