Star Command Fleet has a rank structure for NCO's and Officers.
Non-Commissioned Officers (NCO) ranks are available here.
Officers start at as a "Trainee" at Basic Training.
They then attend the Academy where they start at "Cadet, Forth Class," and then go through "Cadet, Third Class," "Cadet, Second Class" and finally "Cadet, First Class."
When they graduate they enter the rank structure.