Role Description We're building a Vulnerability Operations Center from the ground up and need a senior practitioner to lead it. You'll own the full vulnerability management lifecycle - from detection through triage to remediation tracking and reporting - across Nebius' cloud infrastructure, product and hardware stack. This is a high-impact role with big ownership: you'll define processes, select tooling, work directly with engineering teams, and set the standard for how Nebius responds to vulnerabilities. What You'll Do - Improve and maintain automated vulnerability triaging capabilities and vulnerability data quality through data enrichment (internal and external intelligence feeds), quality metrics, AI-assisted triage, context-aware risk scoring, and vulnerability correlation/chaining. - Hands-on validation and triaging of most critical/zero-days vulnerabilities. - Work closely with vulnerability data consumers and stakeholders across the organization to meet engineering, compliance, and regulatory requirements by delivering high-quality, actionable findings and driving effective remediation. - Contribute to the development of internal platforms, including the Unified Vulnerability Management (UVM) system and the security orchestration platform, to automate core vulnerability management workflows and reduce manual effort. - Identify current deficiencies in patch management, drive and oversee improvements across engineering teams and business units to improve remediation efficiency and reduce organizational risk. - Own vulnerability intake from all sources - scanners, bug bounty, threat intel feeds, and penetration tests. - Prioritize findings using risk-based frameworks (CVSS, EPSS, SSVC, asset criticality, exploitability context, business impact) and reduce false positive noise. - Drive remediation accountability across infrastructure, platform, and product engineering teams. - Identify, track and report vulnerability management metrics, present KPIs and trends to security leadership. - Coordinate response to critical/zero-day vulnerabilities, acting as the primary point of contact across security, engineering, and operations. - Define and maintain integration between VOC tooling and the broader security ecosystem. Qualifications - 5–8 years in information security with at least 3 years focused on vulnerability management or security operations. - Deep familiarity with vulnerability scanning tools and their strengths/limitations in cloud-native environments. - Strong grasp of CVE/NVD, CVSS scoring, EPSS, SSVC and how to apply them to real-world prioritization. - Experience managing vulnerabilities across IaaS/cloud infrastructure (AWS, GCP, Azure, or private cloud) - experience with GPU/HPC environments is a plus. - Deep understanding of vulnerability sources limitations and corner cases for different vulnerability classes. - Able to write and review code (ability or willingness to develop in Golang) - well enough to assess exploitability, validate fixes, and build lightweight automation (e.g., variant-detection scripts, triage tooling, data pipelines for trend analysis). - Strong grasp of common vulnerability classes at the code and infrastructure level. - Comfortable feeding well-documented vulnerability patterns into AI-assisted code review workflows and critically evaluating the output. - Track record of working cross-functionally with engineering teams and holding stakeholders accountable to timelines without being a bottleneck. - Strong written and verbal communication - able to translate technical risk into business impact for non-security audiences. Nice to Have - Experience building vulnerability management program from scratch. - Familiarity with container and Kubernetes security. - Experience with supply chain security (SBOMs, dependency scanning). - Bug bounty triage experience. - Public talks or research articles. 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. 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.