Security Officer ; Armed
Listed on 2026-09-25
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Security
Armed Security, Security Officer, Site Security, Security Management & Operations
Why Castelion, Why Now
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.
Why Castelion, Why NowCastelion 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.
SecurityOfficer I (Armed)
The Security Officer I (Armed) on the Physical Security team at Castelion is responsible for protecting personnel, facilities, assets, and operations through armed security presence, access control enforcement, patrol activities and incident response. In this role, you will maintain proficiency with assigned weapons and security equipment, control access to designated areas, conduct interior and exterior patrols, respond to security incidents and emergencies, and support the protection of advanced defense technologies and critical manufacturing operations.
Responsibilities- Control access at designated security posts and verify employee, visitor, and contractor vehicle credentials.
- Conduct armed interior and exterior patrols of facilities, parking areas, the site perimeter, and restricted locations.
- Monitor security systems, alarms, cameras, and access control platforms and respond appropriately to security incidents.
- Identify, observe, document, and report suspicious activity, security violations, safety hazards, and facility concerns.
- Respond as an armed security officer to alarms, medical incidents, security threats, and emergencies in accordance with established response and use-of-force procedures.
- High school Diploma or GED
- 2+ years of experience in armed security, military, law enforcement, corrections, emergency services, or a related protective security field.
- Ability to observe, assess, and respond appropriately to security and safety concerns.
- Must possess or be able to obtain and maintain all New Mexico licenses, registrations, and firearms qualifications required to perform armed security duties.
- Valid driver’s license and ability to operate company vehicles if required.
- 2+ years of experience in aerospace, defense, manufacturing, critical infrastructure, or industrial environments.
- Experience conducting armed patrols, incident response, investigations, and emergency response.
- Experience operating CCTV, access control, intrusion detection, alarm monitoring, and security communications systems.
- Current CPR/AED, First Aid, Stop the bleed, firearms, defense tactics, or other applicable security certifications
- Ability to maintain a professional and visible security presence.
- Ability to wear approximately 20-30 pounds of gear throughout a 12-hour shift, to include; days, nights, overtime, weekends and rotating schedules as required.
- Must obtain and maintain all company required firearms, use-of-force, defensive tactics, less than lethal, and emergency response qualifications.
- This role is based in Rio Rancho, NM and requires full-time onsite presence.
- Must successfully pass a background investigation and any required pre-employment screening.
- Ability to stand and walk for extended periods throughout a 12-hour shift.
- Ability to patrol large indoor and outdoor areas, climb stairs and navigate uneven terrain.
- Ability to lift, carry, push, and pull up to 50 pounds.
- Ability to work outdoors in varying environmental conditions.
- Ability to safely wear and operate required equipment to include body armor, duty belt, firearm, less than lethal equipment, radio and other assigned security equipment for extended periods.
Castelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details.
Other DutiesPlease 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…
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