Jazzy yes you could get a job flying cessna citations with 500 hours OS pilots are flying A320 with a starting total of 200 hours.
I fly citation myself as an FO and have been for the last 2 years ,just study hard and listen to the people willing to teach you.
the only thing to remember is you will do around 300 to 350 hours a year and if you want to log the hours fast this is not the job you need.
good luck
