Job Details Cardiac Surgical Nurse 7a-5:30p. On call requirements will vary base on department needs. Job Description Join the mission of Improving Lives as a Staff Nurse. With more than 42,000 employees, we're the second largest employer in Philadelphia and the largest health system in the Philadelphia region. And our work to improve lives is never done. Staff Nurses are responsible for the following: Performs patient procedures within the nursing scope of practice.