If he had more experience then he could also be useful as a general science officer (think Mordin from Mass Effect), but at 21 he wouldn't have that sort of practice.

Also, unless there's some reason otherwise in the bio, I think Alfred and Jack might get along really well. Both of them specialize in blowing the everliving blue fuck out of things, and a living mech is probably gonna try to stay on the good side of those who can repair her.