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 and technical excellence are decisive advantages - and we are building a team that can deliver real capability, not just concepts.
This is a rare opportunity to join at an early stage, where your work will directly shape critical systems, influence major technical decisions, and have immediate, real-world impact.
Facilities Coordinator – Midland, TX
We are seeking a highly proactive, hands-on Facilities Coordinator to support the daily operations of Castelion's Midland, Texas site. This role is responsible for ensuring the day-to-day needs of the site are handled efficiently and consistently, including employee lunch coordination, snack and beverage programs, janitorial services, recurring site services, vendor coordination, and general facilities support.
This is a highly dynamic role where no two days will look exactly the same. In addition to owning recurring site services, the Facilities Coordinator will work directly with the Facilities Manager and provide support across a wide range of facilities needs and projects as the site continues to grow and evolve.
Success in this role requires someone who is extremely organized, resourceful, flexible, and willing to jump in wherever needed. The ideal candidate has a strong service mindset but is equally comfortable working in an industrial environment, coordinating contractors, moving supplies, solving unexpected problems, or helping execute a facilities project. This person should naturally see what needs to get done and take ownership of getting it across the finish line.
This is a full-time, on-site position requiring flexibility to support changing site priorities and occasional needs outside of standard business hours.
Responsibilities
Basic Qualifications
Preferred Skills and Experience
Other Duties
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.
Benefits And Perks
All full-time employees are granted meaningful long-term equity, sharing in the company's significant growth trajectory. We offer four (4) weeks of paid time off, ten (10) company-paid holidays, and comprehensive health benefits - including 100% employee-covered medical and strong dependent coverage, along with dental and vision plans. We also provide paid parental leave to support growing families, a $100 monthly fitness stipend to promote health and performance, and onsite EV charging for convenience. In addition, employees enjoy perks like catered meals, company-covered food during high-demand periods, and a fully stocked kitchen to stay fueled throughout the day.
While this position does not currently require a U.S government-issued security clearance, it may in the near future. Therefore, the ability to obtain and maintain a U.S. government–issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
Affirmative Action/EEO Statement
Employment with Castelion is governed on the basis of competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

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