What is "Civil Service?" Civil Service is a type of job classification at SIU Medicine. Southern Illinois University School of Medicine is part of the State Universities Civil Service System, a program of personnel administration at state-supported institutions of higher education. As part of this system, SIU Medicine follows the guidelines for posting and hiring civil service positions, including professional (non-academic), technical, and support staff positions. If an applicant meets the minimum qualifications to sit for a specific Civil Service exam, they will be contacted regarding the