I think that’s more or less what it means to work in a tech company, as opposed to an IT department. “The business” is not some external thing. Each org is responsible for some part of the business, and contains all the specialties needed to take care of it. Junior people may work only within their specialties, but senior people are expected to have close partnerships and shared understanding with their cross-functional counterparts. We talk with each other frequently, but few of those exchanges contain anything new or surprising. Usually just an agreement to do the obvious next steps relative to what we did last time.