Amentum is seeking an experienced and licensed **Engineer – 1st Class** to support facility operations in the Washington, DC area. This senior-level stationary engineering role is responsible for the safe and efficient operation, maintenance, and repair of complex mechanical systems, including boilers, HVAC units, chillers, pumps, and electrical equipment.

As the most senior engineering professional within the facility, the Engineer – 1st Class operates with a high degree of autonomy, provides technical leadership, ensures compliance with regulatory standards, and oversees junior engineering staff.

**Key Responsibilities**

+ Operate, maintain, and repair complex building systems, including boilers, HVAC systems, mechanical equipment, and electrical components.
+ Conduct advanced troubleshooting and diagnostics on a wide range of mechanical and electro-mechanical systems.
+ Perform scheduled preventive maintenance and corrective repairs to ensure safe ...