What do you think, Rena?
So far we have AlmarRaccoon as our bounty hunter, Shapeshifter as our spy, and I'm thinking it would be fun to play a thief/hacker-type person (with more of an emphasis on thief). By no means do you need to have a profession/role along those lines, but maybe these will give you some inspiration? Also, just because a role/profession is taken doesn't mean you can't have it, too! So choose anything you like!
If you want more inspiration, I can always fire off some random, off-the-top-of-my-head professions/types of people you'd run into on Iridia (and even just the Proxima system in general. You can always be from a different planet, or even an entirely different system).
You could be a...
Police officer, or even en elite, SWAT-like person
A mercenary or bounty hunter
A thief
A hacker (they can make a looooooootta money if they play their cards right)
A gangster
A smuggler or drugrunner
An information broker
A spy
A pilot
A space pirate
A miner
A reporter
A mechanic
An amazing/famous gourmet chef
An inventor
A chemist
A biologist
A microbiologist
A physicist
A doctor, surgeon, or medic
An explosives expert
A sniper
A heavy weapons person
A CQC expert
A ninja or assassin
And you're certainly not limited to those! I just want to help inspire you to create your role for this RP.