Senior GPU HPC Engineer — InfiniBand & Hyperscale Cloud

Nebius Group; Greater London; On-site; GBP 110,000 - 140,000; Full time

Benefits offered by this job

Competitive pay

Career growth

Flexible work

Collaborative culture

Impactful AI projects

International teams

Job summary

Nebius is building a cutting-edge hyperscaler platform and seeks a Senior HPC Cluster Engineer to optimize GPU computing, InfiniBand networks, and the KVM/QEMU stack in a high-performance cloud environment. You will work on hardware integration, performance tuning, and automation for reliability.

The role requires deep systems expertise, multi-GPU HPC experience, and strong programming skills in C/C++, Go, and Python, with a focus on scalable cloud infrastructure.

Qualifications

• 5+ years of professional experience in system-level software development focusing on performance optimization.
• 3+ years of hands-on Linux administration and performance tuning.
• Strong understanding of server architecture, PCIe devices, NICs, Linux OS/kernel, HPC systems.
• Proficiency in performance-oriented languages (C/C++, Go, Python).

Responsibilities

• Tune GPU clusters and InfiniBand networks for HPC performance.
• Analyze and troubleshoot root causes in GPUs and InfiniBand networks.
• Integrate new hardware into infrastructure, with Kubernetes, QEMU, and KVM support.
• Enhance automation for proactive monitoring and fault detection in GPU/InfiniBand environments.
• Configure and manage GPU devices and InfiniBand fabrics for reliability.

Skills

5+ years system-level software

3+ years Linux

C/C++

Go

Python

Job description

Nebius is building a cutting-edge hyperscaler platform and seeks a Senior HPC Cluster Engineer to optimize GPU computing, InfiniBand networks, and the KVM/QEMU stack in a high-performance cloud environment. You will work on hardware integration, performance tuning, and automation for reliability.

The role requires deep systems expertise, multi-GPU HPC experience, and strong programming skills in C/C++, Go, and Python, with a focus on scalable cloud infrastructure.