Physical Security Systems Technician - IT & Infrastructure

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. We are looking for a hands-on Physical Security Systems Technician to support deployment, validation, and maintenance of physical security infrastructure across our European sites. This role focuses on execution — installation, configuration, testing, and documentation of CCTV and access control systems. The ideal candidate combines strong technical skills with a structured approach to testing and documentation, ensuring systems are properly validated and production-ready. Key Responsibilities Installation & Support • Install, configure, and maintain CCTV systems (cameras, NVRs/DVRs, VMS) • Support access control systems (badging, controllers, readers, permissions) • Perform hardware replacements (cameras, readers, controllers, cabling components) • Troubleshoot system issues (network, hardware, software) Testing & Validation • Execute system testing after installations and changes • Develop and run Site Acceptance Testing (SAT) procedures for new deployments • Validate system performance, coverage, failover scenarios, and compliance with design • Identify, track, and help resolve issues found during testing Documentation • Produce and maintain accurate technical documentation (network diagrams, device inventories, configurations) • Create and maintain SAT reports, test cases, and validation checklists • Document system changes, incidents, and resolutions • Ensure documentation is structured, standardized, and audit-ready Deployment & Operations • Support system upgrades, migrations, and new site rollouts • Work with vendors and integrators to ensure quality delivery • Provide on-site and remote support across European locations • Ensure systems comply with internal standards and security requirements Required Qualifications • 2+ years of hands-on experience with physical security systems (CCTV, access control) • Experience installing and configuring cameras and access control hardware • Experience with system testing / commissioning (SAT or similar) • Ability to produce clear technical documentation and reports • Basic networking knowledge (IP addressing, VLANs, PoE) • Basic Linux knowledge (logs, services, basic troubleshooting) • Strong troubleshooting skills across hardware and software • Willingness to travel within Europe • Good communication skills and ability to work independently Preferred Qualifications • Experience with VMS platforms  • Familiarity with access control systems • Experience in data center or enterprise environments • Knowledge of low-voltage cabling standards • Exposure to structured testing methodologies (SAT, UAT, commissioning) Key Traits • Hands-on and execution-focused • Detail-oriented and structured • Strong sense of ownership for quality and completeness • Clear and disciplined in documentation • Comfortable working across multiple sites and environments Benefits & Perks: • 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 What's it like to work at Nebius: Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI Equal Opportunity Statement: Nebius is an equal opportunity employer. We are committed to fostering an inclusive and diverse workplace and to providing equal employment opportunities in all aspects of employment. We do not discriminate on the basis of 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 as a condition of hire. If you need accommodations during the application process, please let us know.