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About the Role

Nebius is seeking a Site Security Manager to oversee physical security operations for the London office. This role involves managing daily security, protecting personnel and assets, and ensuring local practices meet corporate standards. It requires setting processes, managing vendors and security staff, and responding effectively to incidents.

Responsibilities

• Lead day-to-day physical security operations at the Nebius London 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 London office, aligned with Nebius corporate standards and applicable UK regulatory 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 UK 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.

Requirements

• 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 UK regulatory 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.
• Good communication skills in English.

Location

• London

Work Type

• Onsite

Benefits

• Competitive compensation
• Career growth and learning opportunities
• Flexibility and ownership
• Collaborative and innovative culture
• Opportunity to work on impactful AI projects
• International environment and talented teams

About the Company

• Nebius is leading a new era in cloud infrastructure for the global AI economy, building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment.
• Built by engineers, for engineers, Nebius addresses challenges across compute, storage, networking and applied AI.
• Listed on Nasdaq (NBIS) and headquartered in Amsterdam, Nebius has a global footprint with R&D hubs across Europe, the UK, North America and Israel.
• The team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D.

Equal Opportunity

• Nebius is an equal opportunity employer committed to fostering an inclusive and diverse workplace.
• We provide equal employment opportunities in all aspects of employment, prohibiting discrimination based on race, color, religion, sex (including pregnancy), national origin, ancestry, age, disability, genetic information, marital status, veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by applicable law.
• Applicants must be authorized to work in the country in which they apply and will be required to provide proof of employment eligibility.
• Accommodations are available during the application process.