Head of Security

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Rhombus Power delivers AI‑powered predictive intelligence in real time for defense and national security organizations worldwide. Our mission‑built products—Ambient AI and Guardian—are transforming strategic, operational, and tactical decision‑making. By empowering the shift from reactive analysis to proactive, predictive intelligence and decision support, Rhombus Power is providing foresight and freedom of action when it matters most.

Come join our cross‑disciplinary and world‑class team that is delivering game‑changing solutions to transform global security.

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The Head of Security and principal facility security officer (FSO) leads the design, development, implementation, and supervision of a comprehensive security program for Rhombus in support of its U.S. Department of Defense (DoD) mission and commercial business initiatives. The Head of Security ensures compliance with security policies and regulations in a complex and dynamic organization while driving innovative solutions to navigate U.S. domestic and international governmental requirements and bureaucracy.

This is a multidisciplinary security position requiring qualifications as a security professional and the ability to build and lead a security team. The role will interpret, develop guidance on, and implement controls related to all regulatory, governmental, and international security policies while being a principal advisor to the business and senior leadership. As the principal FSO, the Head of Security oversees all aspects of the National Industrial Security Program (NISPOM) protecting all classified, proprietary, and/or confidential information as well as company assets.

The Head of Security develops and supervises the implementation of all security policies and procedures including risk assessments, training, and programs.

Location: Palo Alto, CA or Washington, D.C.

• Serves as the principal certified Facility Security Officer (FSO), Contractor Special Security Officer (CSSO), Insider Threat Program Senior Official (ITPSO)
• Recruit, retain, and lead the security department and those functions with security responsibilities or duties
• Supervise daily security activities and enforce compliance for government and across all DoD programs, contracts, and work sites
• Develop scalable systems and processes to manage visit authorization requests (VAR), security indoctrination, debriefings, travel briefings, annual refresher trainings, SCI nominations
• Manage, administer, and supervise all activities within security systems of record including but not limited to e‑QIP, NISS, and DISS
• Design, manage, and lead the commercial corporate security program to ensure compliance with contractual, regulatory, U.S. national, and international requirements
• Create and update all security plans, procedures, and instructions
• Develop and execute security education and awareness programs
• Administer the corporate access control program including managing badges, access cards and internal visit requests, as required
• Interpret and arbitrate all policy and processes around personnel, clearances, and our facilities
• Lead preparation, coordination, and execution of all inspections and reviews whether self‑administered or externally administered
• Advise personnel of their reporting requirements, both personal/administrative and compliance/incident‑related reports

• Bachelor’s Degree in a related field (e.g., Security, Risk, Compliance, Technology)
• Active TS/SCI clearance
• At least five years of prior relevant experience
• Certifications as an FSO, CSSO, and ITPSO
• Experience with facility clearance (FCL) requirements and security investigations

• Exceptional communication (oral and written) skills across governmental, academic, technical, and non‑technical audiences
• Experience working at a hyper‑growth Defense technology or dual‑use technology company
• Experience establishing and maintaining clearance programs…