Senior Hardware Engineer

Nebius is looking for a System Engineer to support their expanding North American operations. The role involves designing, deploying, and maintaining high-performance cloud systems optimized for AI workloads, along with troubleshooting complex system issues and collaborating with cross-functional teams.

Responsibilities:

• Participate in the design, deployment, and maintenance of high-performance cloud systems optimized for AI workloads
• Arrange and perform hardware R&D tests and experiments on-site in data center environments
• Troubleshoot and resolve complex system issues related to GPUs, networking (InfiniBand, NVLink), PCIe, and server infrastructure
• Conduct deep investigations into hardware, software, and networking issues to ensure optimal system performance and reliability
• Develop and execute test plans and methodologies for advanced GPU, InfiniBand, and compute systems to benchmark and validate performance
• Collaborate closely with cross-functional engineering and operations teams to improve system performance and reliability
• Monitor system performance and continuously fine-tune configurations for maximum efficiency

Requirements:

• Strong knowledge of modern server architecture, particularly in high-performance, GPU-based environment
• Hands-on experience with GPUs, networking, NVLink, and PCIe technologies
• Proficiency in Linux systems, with experience using Python and Bash for automation and tooling
• Demonstrated ability to troubleshoot complex hardware, software, and networking issues
• Experience with deep problem investigation, root cause analysis, and performance optimization in cloud or high-performance computing environment
• Strong analytical and problem-solving skills with a performance-first mindset
• Basic electronics modification skills, including soldering and wiring
• Knowledge of the Linux kernel and experience with kernel-level debugging or troubleshooting
• Familiarity with electronic measurement equipment such as oscilloscopes and multimeters