Cybrainia builds the data foundations that make AI worth doing — a BigQuery warehouse, a semantic layer holding the metric definitions, and measurement that holds up.
Who is behind the brand
Cybrainia is the brand Jakub Kříž works under. Today that is one person — no team, no office, no registered company; I trade as a sole trader. I often come into engagements as a subcontractor, alongside the agency running the project. I write this plainly, because it is the first thing you would check anyway, and because leaving it out would cast doubt on everything else on this site.
The intent is not to stay one person. That is why the site has a structure a second name fits into without a rewrite: the offer speaks for the brand, the evidence and the refusals are signed by me, and the biography is a subpage. When somebody joins, a page gets added.
Why twenty years of data sits under the AI work
AI projects do not fail on models. They fail on data. A model can be swapped out in an afternoon. What is missing underneath it — a traceable origin for a number, a metric definition that finance and marketing both accept, a described structure an agent can take context from — cannot.
Twenty years in data engineering, programming and web analytics is therefore not a second offer sitting next to the AI. It is the reason the AI will work. Data is the fuel, and most of the projects I have watched get stuck got stuck exactly there.
Prague. Czech and English.