To be fair, in certain contexts, your professional bio does need to be more formal, like Mr. Erickson's up there. But in many cases, writing a bio that's readable even conversational is actually a really good thing. But once created, this bio should represent who you are in the eyes.
Chief Exicutive Officer Creative Web Design
In the early years of the commercial web, we were all Web Designers. Digital interactions, at that stage, were not incredibly sophisticated: most websites were structured as a set of individual pages connected to each other via buttons and links.
In more complex websites and information-heavy systems, the web designer would pair with an Information Architect to make sure content was organized in a way that made for that.