Job Description

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. 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. 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 Castelion offers a generous benefits package. Please refer to the bottom of our Careers page for more details. 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. Additional Eligibility Requirements 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 position is so designated, your employment in the role may be contingent upon your ability to obtain and maintain the required U.S. Government security clearance or other government authorization, and to satisfy any citizenship or other eligibility requirements imposed by applicable law, regulation, executive order, or government contract requirements. You will be notified if and when such requirements apply. Affirmative Action/EEO Statement Castelion is an Equal Opportunity Employer. We are committed to providing equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, genetic information, protected veteran status, or any other characteristic protected by applicable federal, state, or local law. Castelion is committed to providing reasonable accommodations to qualified individuals with disabilities throughout the application and hiring process. If you require a reasonable accommodation to complete an application, participate in the interview process, or otherwise participate in the hiring process, please contact hr@castelion.com. Requests for accommodation will be considered on an individual basis and handled in accordance with applicable law. Castelion is committed to fostering a workplace where employment decisions are based on qualifications, business needs, and the ability to perform the essential functions of the role, with or without reasonable accommodation. EAR/ITAR Requirements This position requires access to export-controlled information, and as such, employment (or hiring of a contractor) is contingent upon the candidate’s ability to access all applicable export-controlled information without additional export licensing being required by the Bureau of Industry and Security and/or the Directorate of Defense Trade Controls.

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