About Nebius: 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. 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: - How you will make an impact: - Build a site-security operation that is disciplined, reliable and easy for employees and visitors to navigate.2 - 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. Pay Transparency We offer competitive compensation and benefits packages. Actual compensation will be...