A CIWS (Close-In Weapon System) job typically involves operating, maintaining, and troubleshooting automated defensive weapon systems designed to detect and neutralize incoming threats, such as missiles and aircraft. Personnel in this role are responsible for routine maintenance, system diagnostics, and ensuring the system remains operational in high-threat environments. These positions are commonly found in military or defense-related fields, particularly in the Navy, where CIWS protects ships from hostile attacks. Strong technical skills and attention to detail are required to ensure the system functions reliably under critical conditions.