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# Senior Systems HPC Engineer

- **Company:** Nebius
- **Location:** Amsterdam, Netherlands
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** C++ (Programming Language), System Configuration, Linux, Network Interface Controllers, Python (Programming Language), PCI Express, Performance Tuning, Software Engineering, System Programming, Golang, Programming Languages
- **Published:** October 30, 2026
- **Apply:** https://www.werk.nl/nl/vacatures/72016392

## About the Role

In this role you will - Focus on understanding system behavior across multiple layers, identifying performance bottlenecks, and driving improvements that shape how our 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
We expect you to have: - 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...