Staff officer

A staff officer was any member of a group of officers, enlisted and civilian personnel on a starship, starbase, or planetary base, who were responsible for the administrative, operational and logistical support. Collectively, they were known as the senior staff. These officers held seniority positions in their departments, but were not necessarily senior officers. Members of the senior staff were sometimes referred to by the title "Department Head".

Senior staff positions
The following positions could have been considered as senior staff positions:
 * Commanding officer
 * Executive officer
 * Second officer
 * Third officer
 * Chief communications officer
 * Chief science officer
 * Chief medical officer
 * Chief helmsman
 * Chief navigator
 * Flight controller
 * Chief engineer
 * Head counselor
 * Chief tactical officer
 * Security chief
 * Chief operations officer
 * Strategic operations officer
 * Intelligence officer
 * Chief of operations
 * Head stellar cartographer