Facilities Maintenance Technician

Castelion is moving incredibly fast to develop and deliver advanced defense systems at a time when execution matters more than ever. We believe focus, ownership, and excellence are decisive advantages - and we're building a world-class team to turn bold ideas into real capability.

This is a rare opportunity to join at an early stage, where you'll have significant ownership, collaborate with exceptional teammates, and make a direct, measurable impact on our mission and the future of the company - regardless of your function.

We are seeking a skilled Facilities Equipment Maintenance Technician to support the maintenance and operational integrity of our facilities. You will perform preventive maintenance and troubleshoot a wide range of equipment, including CNC machines, furnaces, vacuum systems, thermal chambers, as well as facility building systems (compressed air, HVAC, gates, rollup doors, etc.). You will diagnose and repair electrical, mechanical, and controls issues down to the component level, from PLCs and servomotors to actuators and gearboxes.

The ideal candidate will demonstrate a proactive approach to problem-solving, a strong commitment to safety, and the ability to work independently within a fast-paced, mission-driven environment.

• Maintain and repair all critical equipment to ensure their proper operating condition
• Perform weekly scheduled preventive maintenance on production and Infrastructure equipment to prevent breakdown and maintain equipment reliability
• Strong ability to troubleshoot and diagnose mechanical, electrical, and controls system issues down to the component level promptly to minimize downtime.
• Read and utilize equipment maintenance manuals, schematics, and drawings (electrical, mechanical, pneumatic, hydraulics)
• Open, track, and resolve work order tickets through internal CMMS system
• Assist in managing site-wide operations and maintenance programs as assigned
• Safely operate forklifts, scissor lifts, and boom lifts when necessary.

• High school diploma or equivalent.
• Minimum of 5+ years of experience in facilities maintenance in a manufacturing or production environment
• Hands‑on experience repairing mechanical, electrical, pneumatic, or hydraulic systems
• Must be able to pass background checks as required by job site regulations
• Ability to read electrical and mechanical schematics
• Ability to lift up to 35 lbs unassisted.
• Physical ability to stand for extended periods and perform tasks involving bending, climbing ladders, grasping, pulling, pushing, stooping, and stretching.
• Comfortable working at elevated heights (up to 100 feet) and using ladders or aerial lifts.

• Minimum of 10+ years of experience in facilities maintenance in a manufacturing or production environment
• Maintenance experience on CNC machines such as Doosan(DN Solutions), Haas, and manual lathes/mills
• Maintenance experience on electric furnaces/ovens, vacuum systems, environmental thermal testing chambers.
• Familiarity with a CMMS platform (eMaint, Maximo, or similar) and Jira Ticketing system

Castelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details.

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.

This position may require access to classified information or restricted U.S. Government sites, systems, or information, as determined by the Company and/or applicable U.S. Government requirements. If the…