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Senior AI Infrastructure Systems Engineer; R&D​/GPU​/AI

Job in Phoenix, Maricopa County, Arizona, 85001, USA
Listing for: nebius
Full Time position Listed on 2026-11-15
Job specializations:
Salary/Wage Range or Industry Benchmark: 179500 - 224300 USD Yearly USD 179500.00 224300.00 YEAR

Job Description & How to Apply Below

Position: Senior AI Infrastructure Systems Engineer (R&D / GPU / AI)
Role overview

Investigate difficult hardware and platform failures in high-performance GPU systems, using evidence to determine whether the cause lies in the GPU, host, firmware, interconnect, cooling, or physical hardware. The role combines Linux-based systems debugging, performance and stability analysis, and the creation of repeatable troubleshooting methods for issues that may not have an established procedure.

Responsibilities
  • Form and test hypotheses by examining system logs, hardware data, and targeted diagnostic results.
  • Isolate failures across GPU servers, Linux hosts, firmware, PCIe and other interconnects, power, and cooling.
  • Analyze GPU diagnostics and fabric behavior, and run tests such as DCGM diagnostics and NCCL benchmarks.
  • Investigate PCIe topology and errors, connecting protocol-level symptoms to potential link or signal-integrity problems.
  • Benchmark system performance, stability, power use, thermal behavior, and workload characteristics.
  • Document root causes and turn findings into repeatable troubleshooting procedures; automate investigations with scripts.
Requirements
  • At least five years of hands-on systems engineering experience involving Linux, server hardware, firmware, PCIe, and GPU or high-performance computing platforms.
  • Extensive Linux troubleshooting experience, including knowledge of the kernel and kernel-level debugging.
  • Strong understanding of modern server architecture and NVIDIA GPU systems, including relevant diagnostics, drivers, and interconnects.
  • Deep PCIe knowledge, including enumeration, topology, link behavior, and error types.
  • Experience with platform firmware such as BIOS/UEFI, BMC, programmable logic, GPU firmware, and NIC firmware.
  • Practical ability to investigate hardware, software, and networking issues; use low-level interfaces such as I²C, SMBus, or PMBus; and automate work with Python or Go.
Benefits and work setup
  • The listed benefits include employer-paid medical, dental, and vision coverage for employees and families.
  • A retirement plan with up to a 4% employer match and immediate vesting.
  • Paid parental leave.
  • A monthly reimbursement of up to $85 for mobile and internet.
  • Employer-paid disability and life insurance.
  • The source lists a salary range of $179,500–$224,300 plus quarterly performance bonuses.

Position Requirements

10+ Years work experience
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