Senior HPC Cluster Engineer

Why work at Nebius

Nebius is leading a new era in cloud computing to serve the global AI economy. We create the tools and resources our customers need to solve real-world challenges and transform industries, without massive infrastructure costs or the need to build large in-house AI/ML teams. Our employees work at the cutting edge of AI cloud infrastructure alongside some of the most experienced and innovative leaders and engineers in the field.

Where we work

Headquartered in Amsterdam and listed on Nasdaq, Nebius has a global footprint with R&D hubs across Europe, North America, and Israel. The team of over 500 employees includes more than 400 highly skilled engineers with deep expertise across hardware and software engineering, as well as an in-house AI R&D team.

The role

We’re looking for a Senior HPC Cluster Engineer to contribute to the development of our hyperscaler platform.

The Hypervisor team supports and develops the parts of the Cloud platform that directly affect the KVM hypervisor and QEMU device emulator. We understand the granular details of hardware virtualization and device emulation, paying close attention to performance and protection against untrusted code.

In this position, your responsibility will be to:

• Improve infrastructure around GPU-accelerated computing
• Analyze root cause and suggest corrective action for problems large and small scales
• Add new hardware support through all infrastructure software stack
• Detect and fix problems before they occur

We expect you to have:

• 5+ years of professional software development experience
• 3+ years of experience with Linux
• System level understanding of server architecture, PCIe devices, NICs, Linux OS and kernel drivers
• Strong knowledge in any performance programming languages (C, C++, Go, Java, Python)

It would be an added bonus if you had:

• Experience analyzing and tuning performance for a variety of HPC workloads
• Familiarity with RDMA, RoCE, Infiniband
• Background with Software Defined Networking and HPC cluster networking
• Understanding of QEMU/KVM virtualization stack
• Familiarity with deep learning frameworks like PyTorch and TensorFlow
• Familiarity with collective communication libraries (MPI, nccl)

What we offer 

• Competitive salary and comprehensive benefits package.
• Opportunities for professional growth within Nebius.
• Hybrid working arrangements.
• A dynamic and collaborative work environment that values initiative and innovation.

We’re growing and expanding our products every day. If you’re up to the challenge and are excited about AI and ML as much as we are, join us!