Probably not much other than sitting watch on the bridge... But then hopefully the Chief Medic isn't going to have a lot to do, either. As for the cargo officer, his job is totally superfluous while in flight. He gets to do his thing at either end, with the loading and unloading. Security officer is probably not going to have very much to do, for that matter.
And once the ship is heading out of the solar system, nor is 1st Pilot.
2nd Pilot sits in the right hand seat, next to the pilot, mirrors her moves on the controls, and takes over when she goes off duty.
However, the general appeal of this RP isn't in the technical aspects of flying a space ship - it's actually more than capable of flying itself! The appeal should be in the relationships between the characters... A couple of dozen people (including NPCs) crammed into a tin can that is hurtling through space at an idiotic velocity with absolutely no guarantee of reaching the other end in one piece...
Sorry, but unless anyone doesn't show, all the good roles get grabbed early.
Oh and congrats on your reverification, QM!