PRINCIPAL PROFESSIONAL ENGINEER (TRAFFIC) Palm Beach County’s Engineering and Public Works Department’s Traffic Division is seeking an experienced and highly skilled Principal Professional Engineer to manage the Traffic Signal and Street Lighting Design section in the Traffic Engineering Division. Performs administrative and management work responsible for planning, coordinating and approving the work of professional and technical staff. Responsible for supervising activities of the Traffic Signal and Street Lighting Design section, including the production of signal design and street lighting projects, administering construction project contracts, managing project budgets, administering the County's