IT Infrastructure Engineer – RMA & Hardware Diagnostics

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 We are seeking an IT Infrastructure Engineer – RMA & Hardware Diagnostics to own advanced hardware troubleshooting and RMA lifecycle management within our production data center environments. This role serves as the escalation point for complex server and firmware-related issues that impact system reliability and fleet availability. You will be responsible for deep diagnostics across enterprise server platforms, performing structured root cause analysis, validating failed components, and managing end-to-end warranty replacement processes with OEM vendors. This is a hands-on technical role with direct impact on hardware reliability, SLA performance, and operational scalability. You will work on-site in one of our data centers, collaborating closely with L1/L2 technicians, infrastructure engineers, and vendors to reduce repeat failures and improve overall hardware quality across the fleet. *]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]" data-turn-id="request-69e2a372-fb84-8336-9e1a-01cc950eb9db-55" data-turn-id-container="request-69e2a372-fb84-8336-9e1a-01cc950eb9db-55" data-testid="conversation-turn-606" data-scroll-anchor="false" data-turn="assistant"> You will work out of our Minnesota data center location. Your responsibilities will include: • Perform advanced firmware and hardware diagnostics on enterprise server platforms, including CPU, memory, PCIe devices, GPUs, storage subsystems, and power components • Troubleshoot complex hardware failures using system logs, BMC/IPMI interfaces, BIOS diagnostics, and vendor-specific tooling • Act as the primary escalation point for L1 and L2 technicians on high-impact hardware incidents • Conduct structured root cause analysis and document findings to prevent repeat failures • Own the full RMA lifecycle, including validation of failed components, warranty claim creation, vendor coordination, tracking, and resolution • Interface directly with OEM vendors to escalate recurring hardware defects and drive corrective action • Analyze hardware failure trends and report metrics such as repeat RMA rates and component reliability • Develop and standardize diagnostic playbooks, troubleshooting workflows, and hardware validation procedures • Validate replacement components prior to redeployment into production environments • Collaborate cross-functionally with data center operations, procurement, and engineering teams to improve hardware lifecycle processes • Contribute to reducing MTTR and improving fleet-wide reliability through process improvements and knowledge sharing We expect you to have: • 5+ years of hands-on experience working with enterprise server hardware in a production data center environment • Deep understanding of x86 server architecture, including CPUs, memory, PCIe devices, storage controllers, GPUs, and power subsystems • Strong experience performing