Senior Commander, a military rank, was employed by the Galactic Empire's Imperial Security Bureau. Alecia Beck possessed this rank in the year 0 BBY.
Within the Chiss Ascendancy's Expansionary Defense Fleet, the rank was similarly utilized; Plikh'ar'illmorf held the position of Senior Commander on the Springhawk both preceding and during Mitth'raw'nuruodo's Mission to Batuu.