There is a big gap between gaining your license and then using it in the real world.
Based on experience and depending on the company you have gained a job at; you will receive an ICUS period of approximately 20 hours. The requirement will be dependent on your own skills/experience and whats laid out in the company operations manual.
Out on the job, the considerations that are mostly overlooked by a newcomer: On time performance, fuel management, engine management, use of checklists, passenger/freight management and security, use of TAF's/TTF's with regard to holding requirements, short field takeoff/landings, cleaning and tie down of aircraft, lack of a hand held gps, system knowledge, dealing with real world enroute weather etc.
These will be covered with your on the job training (ICUS).
At the end of the day, the flying school you flew at will have little to do with getting that first job.
Attitude, knowledge and work ethic are the key components that will govern your terms of employment; or lack there of.
Enjoy.