IT Infrastructure Engineer

The role The IT Infrastructure Engineer – RMA & Hardware Diagnostics is responsible for advanced hardware troubleshooting and RMA lifecycle management within Nebius 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 performing deep diagnostics across enterprise server platforms, conducting 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 Nebius data centers, collaborating closely with L1/L2 technicians, infrastructure engineers, and vendors to reduce repeat failures and improve hardware quality across the fleet. Minnesota is listed as a location. Responsibilities include: performing advanced firmware and hardware diagnostics on enterprise server platforms (CPU, memory, PCIe devices, GPUs, storage subsystems, power components); troubleshooting complex hardware failures using system logs, IPMI interfaces, BIOS diagnostics, and vendor-specific tooling; acting as the primary escalation point for L1 and L2 technicians on high-impact hardware incidents; conducting structured root cause analysis and documenting findings; owning the full RMA lifecycle, including validation of failed components, warranty claim creation, vendor coordination, tracking, and resolution; interfacing directly with OEM vendors to escalate recurring hardware defects and drive corrective action; analyzing hardware failure trends and reporting metrics; developing and standardizing diagnostic playbooks, troubleshooting workflows, and hardware validation procedures; validating replacement components prior to redeployment into production environments; collaborating cross-functionally with data center operations, procurement, and engineering teams to improve hardware lifecycle processes; contributing 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 with enterprise server hardware in a production data center environment; deep understanding of x86 server architecture; strong experience with firmware and BIOS/BMC diagnostics and upgrades; advanced Linux command-line troubleshooting; experience with remote management interfaces (IPMI, iDRAC, iLO); proven RMA management with OEM vendors; ability to perform structured root cause analysis and document findings clearly; familiarity with hardware monitoring systems and failure trend analysis; strong ownership mindset and ability to operate independently in mission-critical environments; high proficiency in spoken and written English. Bonus points: experience performing board-level diagnostics, data center networking exposure, GPU-dense HPC environments, and valid driver’s license. Compensation: We offer competitive salaries ranging from $112,700.00 - $140,800.00 OTE (On Target Earnings) based on experience and skills. Benefits & Perks include competitive compensation, career growth, flexibility and ownership, collaborative and innovative culture, opportunity to work on impactful AI projects, international environment and talented teams. What Nebius is like to work at: fast moving, bold thinking, constant growth, meaningful impact, trust and real ownership, opportunity to shape the future of AI. Equity and equal opportunity statement included.