Senior chief petty officer

Senior chief petty officer is an enlisted rank in some navies.

U.S. Coast Guard
senior chief
petty officer
collar device

Command Senior Chief
Petty Officer
badge

Senior chief
petty officer
insignia

Senior chief
petty officer
collar device

Senior chief petty officer is the eighth of nine enlisted rates in the U.S. Navy and U.S. Coast Guard, just above chief petty officer and below master chief petty officer, and is a noncommissioned officer. They are addressed as "Senior Chief" in most circumstances, or sometimes, less formally, as "Senior".