SFO - Office Site Security Manager

The role

We are looking for a Site Security Manager to lead physical security operations for the Nebius San Francisco office. You will own the day-to-day security posture of the site, protect employees, visitors, assets and infrastructure, and make sure local practices are robust, compliant and aligned with Nebius corporate standards. This is a hands-on leadership role for someone who can set clear processes, manage vendors and front-desk security personnel, and respond calmly and decisively when incidents occur. You will be the local owner of physical security: the person who turns standards into daily practice, protects people and assets, and keeps the site ready for both routine operations and unexpected events. 

Your responsibilities will include: 

• Lead day-to-day physical security operations at the Nebius San Francisco office, maintaining a safe, secure and professional environment for employees, visitors and company assets. 
• Develop,implement and continuously improve site-specific security policies, procedures and training for the San Francisco office, aligned with Nebius corporate standards and applicable U.S., California and San Francisco requirements. 
• Monitor and manage CCTV, alarm systems and access-control processes, ensuring reliable operation, clear escalation routes and timely response to potential threats. 
• Conduct regular risk assessments, site reviews and physical-security checks; identify vulnerabilities and drive corrective actions to completion. 
• Serve as the primary local liaison with local law enforcement, emergency services, building management and other relevant authorities during incidents,emergencies or crises. 
• Lead investigations into security breaches and incidents, document findings clearly, and implement corrective and preventive actions.
• Manage relationships with external security vendors and contractors, setting expectations and ensuring high-quality service delivery.
• Direct, brief and coach front-desk security personnel on-site so that security standards are applied consistently and professionally.
• Partner with Facilities, IT, People, Legal/Complianceand site leadership to keep local practices aligned with company-wide security, safety and business-continuity expectations. 

How you will make an impact:

• Build a site-security operation that is disciplined, reliable and easy for employees and visitors to navigate. 
• Raise risks early, communicate clearly and help the business move quickly without compromising safety or control.
• Create a strong local security culture through visible leadership, practicaltraining and consistent standards. 

We expect you to have: 

• Proven experience managing physical security operations, preferably in largecorporate, technology, critical-infrastructure or governmental environments. 
• Strong leadership, communication and interpersonal skills, with the ability to manage vendors, contractors and diverse on-site teams. 
• Solid knowledge of physical-security principles, risk management, emergency response and applicable U.S.,California and San Francisco requirements. 
• Hands-on experience with security technologies, including surveillance systems, CCTV, alarmsystems and access-control platforms. 
• Excellent analytical and problem-solving ability, with the judgment to assess risk, prioritize remediation and implement effective solutions.
• Calm, credible decision-making under pressure, especially during emergencies, incidents or sensitive investigations. 
• Clear documentation and reporting skills, including incident reports, risk summaries, findings and corrective-action plans. 

Key employee benefits in the US:

• Health insurance: 100% company-paid medical, dental, and vision coverage for employees and families.
• 401(k) plan: Up to 4% company match with immediate vesting.
• Parental leave: 20 weeks paid for primary caregivers, 12 weeks for secondary caregivers.
• Remote work reimbursement: Up to $85/month for mobile and internet.
• Disability & life insurance: Company-paid short-term, long-term and life insurance coverage.