Vulnerability Operation Center Lead

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. Vulnerability Operation Center The team maintains the full vulnerability management lifecycle - from detection and triage through remediation tracking and reporting - across Nebius's cloud infrastructure, product, and hardware stack. The team's focus is on improving vulnerability triaging capabilities and vulnerability data quality, driving effective remediation, and serving as the first line of response for the most critical zero-day vulnerabilities. The role 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. What We're Looking For • 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