Studying at a university where all this and more is part of the first year education of computer scientists, I - probably foolishly - assumed basic linear algeb

Studying at a university where all this and more is part of the first year education of computer scientists, I - probably foolishly - assumed basic linear algebra was common knowledge in the community. Now my interest is piqued: Which educational path / career path did you take ending up in IT and (more specifically) how much mathematical education did it include? What is your educational background and which route