About Castelion

Castelion is bringing a new approach to defense development and production: one that focuses on short, iterative design cycles, rapid testing in development, and modern commercial manufacturing strategies for production at scale. We're designing, building, and testing next generation long range strike weapons systems to give America and its Allies a definitive edge and deter future conflicts.

Recruiting Coordinator

Castelion is scaling rapidly, and we are looking for a proactive, organized, and detail-oriented Recruiting Coordinator to support our growing talent acquisition function. This role is ideal for someone who thrives in a fast-paced environment, enjoys building strong relationships, and can take ownership of critical recruiting operations while contributing to the overall candidate and hiring manager experience.

You will partner closely with recruiting, HR, and hiring teams to coordinate and manage the end-to-end recruiting process. This is a 100% onsite position based at our Torrance, CA headquarters.

Responsibilities

• Schedule and coordinate interviews, meetings, and travel logistics for candidates and teams
• Manage candidate communications, ensuring a positive and professional experience from application through offer
• Support recruiters with sourcing, outreach, and pre-screening as needed
• Own administrative aspects of recruiting: offer letters, background checks, onboarding paperwork, and reporting
• Maintain accurate data in applicant tracking systems and other HR tools
• Partner with recruiting and HR leadership to optimize processes and improve efficiency
• Contribute to special projects and initiatives to enhance the recruiting function

Basic Qualifications

• Bachelor's degree or equivalent experience
• 2+ years of recruiting, HR, or administrative experience (preferably in technical or high-growth environments)
• Excellent organizational and time-management skills
• Strong written and verbal communication skills
• Comfortable working in a fast-paced, evolving environment
• High level of professionalism and discretion
• Must be able to work onsite at Castelion's Torrance, CA headquarters full-time

Preferred Skills and Experience

• Experience supporting technical or engineering hiring
• Familiarity with applicant tracking systems (ATS) and recruiting technology
• Ability to manage multiple priorities and stakeholders simultaneously

Leadership Qualities

Bias to Action and Creative Problem Solving. Desire and experience questioning assumptions in ways that lead to break through ideas that are ultimately implemented. Successfully bring in applicable processes/concepts/materials from other industries to achieve efficiency gains. Ability to personally resolve minor issues in development without requiring significant support.

High Commitment, High Initiative. A successful candidate will have a genuine passion for Castelion's mission and consistently look for ways to contribute to the company's technical goals and prevent hardware blockers. Ability to work in a fast paced, autonomously driven, and demanding atmosphere. Strong sense of accountability and integrity.

Clear Communicator. Proactively communicates blockers. Trusted in previous roles to be voice of company with regulators, suppliers, gate keepers and customers. Capable of tactfully managing relationships with stakeholders to achieve company-desired outcomes without compromising relationships. Emails, IMs and verbal interactions are logical, drive clarity, and detailed enough to eliminate ambiguity.

All employees are granted long-term stock incentives as part of their employment as Castelion. All employees receive access to comprehensive medical, vision, and dental insurance, and the company offers three weeks of paid time off per year.

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.

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.