SFO Office Site Security Manager

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 knowle