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:
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.