SHERPA have just released their skills set and description of the common repository roles
needed to develop and manage a successful institutional repository.

There’s a handy disclaimer just in case anyone starts to get a little depressed as they try to tick off every point on the list:

The document is not designed to describe the skills set required of a particular
repository post but rather is a list of the entire set of skills, knowledge
and abilities required for the development and management of a successful
institutional repository.