So I found this list of confirmed Jobs "classes" you can work/play as.
Professions Coming Soon (3.0 and on)Trading / Cargo Hauling
Mining
Merc / Escort
Bounty Hunter
Military
Pirate
Future ProfessionsExploration
Repair
Tuning / Engineering
Medical
Salvage
Info Running / Hacking
Racing
Farming
Passenger Transport / Taxi driver
Espionage
Science & Research
Search & Rescue
News Reporter
Barista
Refueling
Archaeology
Space Tourist
Translator
Sataball Player
Ship Delivery
This is only the main purpose jobs for depending mainly on what ship you own. If you work on these ships even more "classes" come up.
For example Search & Rescue, space ambulance, work as a pilot, co pilot, medic, safety.
Bigger ships will need medics, cargo worker, engineer, co-pilot, the dude handling the shields, turret guy, spaceship busdriver and so on.
The list is massive really on all the options you will be able to do.
Just to give you guys a hint whats cooming. Hopefully the next major update wont be postponed more and will then be released around end August and will be the test base for Cargo etc that stand above.
If your curious more closely what all these jobs mean can get a more detailed info about each on this site where I found it.
http://scfocus.org/professions/