1) Mandalorian Wars. Served fifteen years there (got sort of drafted, you could say, when I was five, stopped when I was twenty and the war ended). Worked demolitions mostly, and now I can make a grenade out of almost anything. It's a skill.
2) Bounty hunter. I was the best one in the galaxy before I got here. Could track a mark all the way across the galaxy if I wanted to. Specialty was bringing 'em in alive.
3) I'm a Jedi. It means I've got some talents that other people don't have - I'm faster, precognition, limited healing, and I'm damn good in combat.
Oh, and I have olfactory blockers. Those come in handy, especially if you're sharing a barracks.