Site Security Manager

Nebius is leading a new era in cloud infrastructure for the global AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure.

Built by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI.

Listed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D.

• 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/Compliance and site leadership to keep local practices aligned with company-wide security, safety and business-continuity expectations.

• Proven experience managing physical security operations, preferably in large corporate, 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, alarm systems 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.

• 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.
• Base compensation range: $107,100 — $133,800 USD.