He was previously employed by Johnson Controls World Services at Cape Canaveral Air Force Station, Florida, from May 1989 to October 1998 as a Resource Protection Inspector. In this position, he was responsible for scheduling and conducting initial, follow-up and special security surveys of United States Air Force controlled areas/fund storage areas and arms-ammunition and explosive (AA&E) storage areas. These surveys were conducted to insure physical security integrity and to validate and recommend security enhancement. He also performed work area surveys, provided informational handouts and consultation service for the crime prevention program; conducted security education and motivation briefings and crime prevention briefings, analyzed criminal statistical data to include preparation and distribution of monthly trend analysis report.
Mr. Scharfenberg served 22 years in the United States Air Force, ending his career in May of 1989. During his career, he held positions in the Air Force Security Police and First Sergeant career fields as Desk Sergeant, Flight Chief, Investigator, Quality Control Supervisor, Non-Commissioned Officer in Charge (NCOIC) of Report/Analysis, NCOIC Law Enforcement Operations, NCOIC Resources Protection/Crime Prevention, Flight Sergeant for an Air Base Ground Defense Force and First Sergeant responsible for the health/welfare and leadership of a Civil Engineering Squadron consisting of over 350 personnel.