Industrial Security Specialist

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.

Castelion Corporation is currently looking for an Industrial Security Specialist. The Industrial Security Specialist will provide support to the Security department by performing security administrative day‑to‑day functions, assisting in the management of multiple programs and systems, maintaining PERSEC for multiple programs, and assisting management wherever needed. The ideal candidate will work effectively in a fast‑paced, team‑oriented environment with a high level of attention to detail, effective organizational skills, and the ability to adapt to constantly changing demands, excellent customer service skills, and demonstrate capability to take on new and unfamiliar tasks.

The Industrial Security Specialist will be responsible for assisting with all security functions at the Torrance, CA office, as well as assisting in FSO duties to ensure compliance with DCSA, in accordance with 32 CFR Part 117, the National Industrial Security Program Operating Manual (NISPOM) Rule, SAP and SCI security program SCGs, and related federal regulations. The Industrial Security Specialist will ensure that all classified information is properly safeguarded, personnel security clearances are maintained, and the facility remains compliant with government security requirements.

This role will require the Industrial Security Specialist to assist the Manager of Government Security Programs and Senior Industrial Security Specialists in the oversight of all security operations, including physical security, program security, personnel security, COMSEC, SETA, CUI Control, and visitor control. This position has the potential for future growth opportunities.

• Assist with self‑inspections and annual DCSA assessments as directed.
• Assist with self‑inspections and government inspections on SAP and SCI programs.
• Notify personnel of expirations of credentials and clearances, and ensure they stay active.
• Coordinate all internal clearance action requirements.
• Conduct security portion of In/Out processing.
• Assist with program specific In/Out briefings.
• Ensure proper coordination, and verification of accesses, for incoming and outgoing classified meetings.
• Assist with acquisition and maintenance of COMSEC account and Crypto equipment.
• Help update and maintain Security policy documentation (SPP, SOPs, Insider Threat Plan, OPSEC, PPIPs, Company Security Trainings, etc.).
• Assist with required PAR actions.
• Manage facility, and secure area(s), access control, alarm, badging, and camera system(s).
• Facilitate all Badge Requests.
• Assist with National Industrial Security Program (NISP) compliance and other security‑related activities for all facilities within the corporation, including document control, visitor control, physical access/control, education and training, personnel security, and preparation of DD 254's for classified contracting.
• Assist in interpreting policies, disseminating information, and ensuring compliance for company employees and visitors as required.
• Assist in NISS record maintenance for facility documents.
• Assist in inventory, safeguarding and storing, delivery of classified material and/or return of transmittal receipts.
• Assist in maintenance of Security personnel files in compliance with legal requirements and company policies and procedures.
• Awareness of and compliance with company policies and procedures as defined in the Castelion Employee handbook.
• Awareness of and compliance with NISP security policies to include 32 CFR 117 (National Industrial Security Program Operating Manual (NISPOM) Rule), Industrial Security Letters (ISLs) and working knowledge of Government security regulations and policies.
• Perform…