Facilities Manager

Rio Rancho, United States | Posted on 08/06/2026

Castelion was founded to restore America’s ability to field advanced weapons at speed and scale. Inspired by the engineering urgency of the WWII and Apollo eras, we combine rapid iteration, vertical integration, and scalable manufacturing to deliver affordable, high-performance strike systems. Our mission: rebuild industrial agility to strengthen national security and outpace evolving threats.

We are seeking a highly proactive, hands-on Facilities Manager to lead the development, operations, and continuous improvement of Castelion's new 1,000-acre site in New Mexico. This role is critical to enabling safe, reliable, and scalable operations across engineering, manufacturing, and office environments. You will serve as the primary owner of the facility, balancing immediate operational needs with long-term site development as the company rapidly grows.

This is a ground-up opportunity: the site is in early stages, and success will require building structure from ambiguity. You will establish and implement standard operating procedures (SOPs), develop maintenance and facilities systems, and drive prioritization across competing demands. The ideal candidate thrives in fast-paced environments, brings strong operational discipline, and is comfortable making decisions with incomplete information while maintaining a high bar for safety and execution.

• High school diploma or GED required; associate or bachelor's degree preferred
• 7+ years of experience in facilities, site operations, or industrial/manufacturing environments, with increasing responsibility
• Experience supporting large, complex, or multi-building sites (campus-style or industrial environments preferred)
• Demonstrated ability to build and implement SOPs, maintenance programs, and operational processes from the ground up
• Strong working knowledge of building systems (HVAC, electrical, plumbing, life safety) and maintenance best practices
• Demonstrated operational discipline in high-reliability environments with a focus on uptime and safety
• Strong understanding of workplace hazards and safety practices
• Proven ability to prioritize effectively across competing demands in a fast-paced, ambiguous environment
• Experience managing vendors, contractors, and cross-functional stakeholders
• Strong communication, organizational, and problem-solving skills
• Ability to operate independently with high ownership and accountability
• Ability to support off-hours or emergency response as needed

• Experience standing up new facilities, greenfield sites, or major expansions
• Background supporting manufacturing, CNC machining, or high-mix, low-volume production environments
• Familiarity with maintenance management systems (CMMS), asset tracking, and reliability programs
• Experience with infrastructure or capital projects (site development, utilities, equipment installs)
• Strong competency in root cause analysis and continuous improvement methodologies
• Experience in aerospace, defense, or other regulated industrial environments
• Budget ownership and cost control experience
• Employee Equity:
  Meaningful equity forall full-time employees - share value has increased 150x in three years
• Personal Time Off:
  Four (4) weeks of paidtime off to unplug, reset, and come back sharp—velocity matters,burnout doesn't
• Medical:
  We offer plans at 100% employee covered and 80% of dependent coverage
• Dental & Vision:
  We cover 90% employees and 80% for dependents to ensure you and your family have access to quality preventive and ongoing care
• FSA/HSA:
  To support long-term health and financial resilience, we offer FSA and HSA options that allow employees to set aside pre-tax dollars for eligible…