M&A Integration Manager

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. The Role The Integration Manager is a core member of the IMO and a key part of how Nebius integrates its acquisitions in practice. Working closely with the Senior Integration Manager and Head of IMO, this role takes genuine end-to-end ownership of integration workstreams across M&A programmes and corporate initiatives, from pre-close planning through Day 1 and into post-close execution. The role sits at the intersection of planning, governance, and cross-functional delivery, and requires someone who can hold multiple moving parts together without losing sight of the overall integration outcome. The right candidate brings strong programme management instincts, a natural ability to build relationships across functions, and the discipline to drive workstreams forward independently in a fast-moving environment. Key Responsibilities Workstream Ownership • Lead integration planning and drive execution across assigned workstreams from pre-close through Day 1 and into post-close, keeping dependencies visible and workstreams moving. • Ensure Day 1 readiness across all assigned workstreams, with critical actions tracked and owners accountable ahead of close. • Partner with Finance, Legal, HR, Product, Technology, and other functions to maintain cross-functional alignment, holding teams accountable to integration milestones. • Manage risks, issues, and dependencies proactively, with mitigation plans in place and escalations made early where needed. Governance & Reporting • Own workstream governance: RAID logs, decision tracking, meeting cadence, and holding the right people accountable for delivery. • Prepare decision-ready materials, reports, and presentations for senior stakeholders and leadership forums including SteerCo. • Flag risks to workstream milestones or integration assumptions early, with a clear view on impact and a proposed path forward. Stakeholder Management • Build strong working relationships with functional leads and senior stakeholders within assigned workstreams, acting as a credible and reliable point of contact for integrations. • Drive change management and cultural integration in partnership with HR and Communications, helping build genuine connections between Nebius and acquired teams. IMO Contribution • Contribute to improving integration frameworks, processes, and tools, bringing lessons from each workstream into how the IMO operates. • Take on structural corporate initiatives including entity changes, migrations, and reorganisations as a core part of the IMO's remit. Qualifications & Experience Must-Have • 5+ years in project or programme management, corporate development, or an integration management function. • Some exposure to M&A or integration. Depth matters less than familiarity with the context. • Proven ability to manage complex, cross-functional workstreams simultaneously and independently. • Strong governance and planning discipline, with experience maintaining structure under pressure. • Clear and confident communicator, comfortable pre