Senior Systems HPC Engineer
Job description
A Senior Systems HPC Engineer role at Nebius focused on building and optimizing a hyperscaler AI cloud platform, analyzing and tuning the performance of large-scale GPU clusters across hardware, system software, networking and distributed communication layers.
At a glance
- Work mode
- Remote
What you'll do
- Focus on understanding system behavior across multiple layers, identifying performance bottlenecks, and driving improvements that shape how clusters are built, operated, tuned, and validated
- Investigate and troubleshoot performance issues of GPU cluster under real workloads (training and inference)
- Evaluate and integrate new hardware, system configurations and tuning approaches through software stack
- Support complex performance-related escalations from internal teams and customers
- Work closely with infrastructure, software engineering and hardware vendor teams (e.g. NVIDIA, Mellanox, Intel)
- Contribute to hardware and cluster qualification (acceptance), ensuring systems meet performance expectations
What we're looking for
- 5+ years of professional experience in system-level software development (focused on performance optimization, low-level programming)
- 3+ years of hands-on experience with Linux systems (administration, troubleshooting, and performance tuning)
- In-depth understanding of server architecture, including PCIe devices, NICs, Linux OS/Kernel, and high-performance computing (HPC) systems
- Strong proficiency in one or more performance-oriented programming languages (C/C++, Go, Python)
- Coding interviews are part of the process
- Applicants must be authorized to work in the country in which they apply and will be required to provide proof of employment eligibility as a condition of hire
Benefits
- Competitive compensation
- Career growth and learning opportunities
- Flexibility and ownership
- Collaborative and innovative culture
- Opportunity to work on impactful AI projects
- International environment and talented teams
How to get hired
- 1Coding interviews
Apply
About Nebius
Leading a new era in cloud infrastructure for the global AI economy
Nebius is building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment. Built by engineers, for engineers, it owns hard problems across compute, storage, networking and applied AI, from large-scale GPU orchestration to inference optimization.
Mission
Building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure.
Key facts
- 1,500+
- Amsterdam
- AI cloud infrastructure
- Listed on Nasdaq (NBIS)
- Global footprint with R&D hubs across Europe, the UK, North America and Israel
- Team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D
Partners & customers
What they value
- Fast moving
- Bold thinking
- Constant growth
- Meaningful impact
- Trust and real ownership
- Opportunity to shape the future of AI