Technical Project Manager - Security

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. Key Responsibilities Lead large cross-team security initiatives from planning to delivery; Break down complex security programs into phases, milestones, dependencies, and execution plans; Coordinate execution across multiple engineering and platform teams, ensuring alignment and momentum; Translate product requirements into clear, actionable workstreams for engineering teams; Build and maintain project plans, documentation, decision logs, and technical context; Run regular project syncs and reviews - track progress, identify blockers early, and drive mitigation; Own timeline tracking and delivery forecasting - proactively highlight risks a