Security Analyst - Tier 3

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.

Nebius is seeking a deeply experienced Security Analyst - Tier 3 for its Security Operations Center (SOC). This role is a senior individual-contributor position, leading challenging investigations, setting the standards the SOC operates by. This role reports to the SOC Manager, under the Detection and Response function within the CISO Office.

• →Around 8-10 years of hands-on experience in security operations or incident response, with a track record of leading complex investigations.

• Expert-level investigation capability across multiple domains: endpoint, identity, cloud, and network.
• Solid understanding of cloud-native environments, including containers, Kubernetes.
• Deep practical fluency with EDR, SIEM query languages, and log analysis.
• Deep knowledge of Windows and Linux internals, applied to artifact and behavioral analysis.
• Fluency in attacker TTPs (MITRE ATT&CK), including the Cloud and Containers matrices.
• Strong scripting and data-analysis skills (Python, SQL/KQL) for investigation at scale, with the ability to validate findings independently and challenge assumptions.
• Advanced certifications such as GCIH, GCFA, GNFA, GCFE, or OSCP are an advantage.

• Technical leadership through credibility, raising the team's bar without relying on formal authority.
• Calm and structured during high-severity incidents, making sound decisions amid uncertainty.
• Excellent written communication, turning complex investigations to clear narratives others can act on.
• Fluent in English, written and verbal, comfortable working with international teams and stakeholders.

Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI 

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.