Head of Security

2 hours ago


Palo Alto, California, United States Rhombus Full time

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.

Learn more about Rhombus and watch a demonstration of Guardian, our AI Platform here:

See the following articles to learn more about what we do:

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 US 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.

Core Responsibilities

  • 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
  • Supervises daily security activities and enforces compliance for government and across all DoD programs, contracts, and work sites
  • Develops scalable systems and processes to manage visit authorization requests (VAR), security indoctrination, debriefings, travel briefings, annual refresher trainings, SCI nominations
  • Manages, administers, and supervises all activities within security systems of record including but not limited to e-QIP, NISS, and DISS
  • Designs, manages, and leads the commercial corporate security program to ensure compliance with contractual, regulatory, U.S. national, and international requirements
  • Creates and updates all security plans, procedures, and instructions
  • Develops and executes security education and awareness programs
  • Administrates the corporate access control program including managing badges, access cards and internal visit requests, as required
  • Interprets and arbitrates all policy and processes around personnel, clearances, and our facilities
  • Leads preparation, coordination, and execution of all inspections and reviews whether self-administered or externally administered
  • Advises personnel of their reporting requirements, both personal/administrative and compliance/incident-related reports

Qualifications

  • 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 a FSO, CSSO, and ITPSO
  • Experience with facility clearance (FCL) requirements and security investigations

Strongly Preferred

  • 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 and Facility Clearance Licenses (FCL)
  • COMSEC Custodian certificate or experience
  • Industrial Security Professional (ISP) Certification
  • Experience developing and implanting OPSEC plans
  • Experience creating and conducting initial security briefings, debriefings, indoctrinations, pre/post foreign travel briefings and refresher briefings
  • Knowledge of Access Control and Intrusion Detection Systems
  • Experience with SCIF construction

Benefits (Applies to United States Employees only)

  • Full medical, dental, vision coverage for employee and dependents
  • 401k matching program
  • PTO and Holidays
  • Bonus and other incentive programs
  • Access to mental health program
  • Access to Flexible Spending Accounts for Health Care, Dependent and Commuter

About Rhombus

Rhombus Power Inc. (Rhombus) is a startup located in the heart of Silicon Valley at Stanford Research Park in Palo Alto. We use cutting-edge cross-disciplinary approaches to solve pressing Big Data and Sensing problems in security, energy, and healthcare. Our advisory board includes two Nobel Laureates and a Draper Prize winner.

Rhombus compensates, motivates, and develops employees, who are trusted, empowered, and involved. Employees have clear roles and expectations – and their roles are flexible enough to move at the speed of innovation in order to meet and exceed client expectations. We have a unique culture of global purpose, rooted in the innovation and progress of Silicon Valley.

Rhombus knows that diversity is a condition for success. We are committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer.


  • Head of Operations

    6 hours ago


    Palo Alto, California, United States Subsense Inc. Full time

    About SubsenseSubsense is a deep-tech company developing the world's first non-surgical, bidirectional brain-computer interface powered by plasmonic and magnetoelectric nanoparticles. Our mission is to unlock direct communication between the human brain and AI - starting with medical applications such as stroke recovery and moving toward cognitive...

  • Head of IT

    5 hours ago


    Palo Alto, California, United States Inflection AI Full time

    At Inflection AI, our public benefit mission is to harness the power of AI to improve human well-being and productivity.The next era of AI will be defined by agents we trust to act on our behalf. We're pioneering this future with human-centered AI models that unite emotional intelligence (EQ) and raw intelligence (IQ)—transforming interactions from...

  • Head of Storytelling

    4 hours ago


    Palo Alto, California, United States Nightfall AI Full time

    About Nightfall:Nightfall is the AI-native, unified data loss prevention and insider risk management platform that protects sensitive data across SaaS apps, GenAI tools, email, endpoint devices, and more. Hundreds of customers, spanning AI innovators to top 10 banks, trust Nightfall to detect and stop data exfiltration at scale. Nightfall enables...


  • Palo Alto, California, United States Gordon and Betty Moore Foundation Full time

    Gordon and Betty Moore established the foundation to create positive outcomes for future generations. Guided by this vision and the Statement of Founders' Intent , the foundation fosters path-breaking environmental conservation, scientific discovery, and preservation of the special character of the San Francisco Bay Area. We strive to make significant and...


  • Palo Alto, California, United States The Applied Research Laboratory at Penn State University Full time

    APPLICATION INSTRUCTIONS:CURRENT PENN STATE EMPLOYEE (faculty, staff, technical service, or student), please login to Workday to complete the internal application process. Please do not apply here, apply internally through Workday.CURRENT PENN STATE STUDENT (not employed previously at the university) and seeking employment with Penn State, please login to...


  • Palo Alto, California, United States Rhombus Power Inc. Full time

    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...


  • Palo Alto, California, United States Iopa Solutions Full time

    Base Salary:$175,000–$200,000 + bonusDo you thrive at the intersection of engineering, reliability, and leadership? Want to shape the reliability strategy of a high-growth SaaS company that operates at true global scale?We're searching for aHead of Site Reliability Engineeringto take ownership of our reliability vision, build and mentor a high-performing...


  • Palo Alto, California, United States Penn State University Full time

    APPLICATION INSTRUCTIONS:CURRENT PENN STATE EMPLOYEE (faculty, staff, technical service, or student), please login to Workday to complete the internal application process . Please do not apply here, apply internally through Workday.CURRENT PENN STATE STUDENT (not employed previously at the university) and seeking employment with Penn State, please login to...


  • Palo Alto, California, United States Penn State University Full time

    APPLICATION INSTRUCTIONS:CURRENT PENN STATE EMPLOYEE (faculty, staff, technical service, or student), please login to Workday to complete the internal application process . Please do not apply here, apply internally through Workday.CURRENT PENN STATE STUDENT (not employed previously at the university) and seeking employment with Penn State, please login to...

  • Head of Marketing

    5 hours ago


    Palo Alto, California, United States Rhombus Full time

    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...