It depends on the organization. I worked in a department where the hierarchy was supposedly "flat." My day to day work and task assignments came from the manag

It depends on the organization. I worked in a department where the hierarchy was supposedly "flat." My day to day work and task assignments came from the manager of that project, but I routinely had 1:1 meetings with the VP of the entire department which were more of a personal development/mentorship nature. If there was a concern about the project, though, that would normally also include the manager. It was a small enough department, maybe 12-15 developers, that the VP knew everyone pretty well.