Launched in November 2023, the Nebius platform provides high-end infrastructure and tools for training, fine-tuning and inference. Based in Europe with a global footprint we aspire to become the leading AI cloud for AI practitioners around the world.
Nebius is built around the talents of around 400 highly skilled engineers with a proven track record in developing sophisticated cloud and ML solutions and designing cutting-edge hardware. This allows all the layers of the Nebius cloud – from hardware to UI – to be built in-house, differentiating Nebius from the majority of specialized clouds. As a result, Nebius customers get a true hyperscaler-cloud experience tailored for AI practitioners.
As an NVIDIA preferred cloud service provider, Nebius offers the latest NVIDIA GPUs including H100, L40S, with H200 and Blackwell chips coming soon.
Nebius owns a data center in Finland, built from the ground up by the company’s R&D team. We are expanding our infrastructure and plan to add new colocation data centers in Europe and North America already this year, and to build several greenfield DCs in the near future.
Our Finnish data center is home to ISEG, the most powerful commercially available supercomputer in Europe and the 19th most powerful globally (Top 500 list, June 2024). It also epitomizes our commitment to sustainability, with energy efficiency levels significantly above the global average and an innovative system that recovers waste heat to warm 2,000 residential buildings in the nearby town of Mäntsälä.
Nebius is headquartered in Amsterdam, Netherlands, with R&D and commercial hubs across North America, Europe and Israel.
We’re looking for a Senior Hypervisor 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.
You will work on substantial extensions for the QEMU/KVM virtualization stack in close cooperation with the opensource community.
In this position, your responsibility will be to:
- Optimize I/O for emulated disk and network devices Integrate the hypervisor with other platform services and storage facilities for user data
- Efficiently distribute resources between virtual machines
- Improve guest system support
- Advance the cutting-edge of open source virtualization
- Provide low-level security for the hypervisor and emulator
- Provide general support, fix bugs, and monitor the upstream
- Collaborate with other team members and stakeholders
We expect you to have:
- 5+ years of professional software engineering experience
- Fluent in C programming language
- 3+years of experience with Linux
- At least 3 years of engineering experience with QEMU/KVM
- General understanding of x86-compatible systems (virtual memory, interrupts, privilege rings)
- Experience writing general system code in user mode for Linux, including debugging, analysis, and optimization tools (the emulator is built on the user mode system process for Linux)
It would be an added bonus if you had:
- Aсcepted patches in Linux Kernel or QEMU/KVM
- Experience working with Linux kernel
- Some experience with ARMv8, including virtualization extensions
- Understanding of PCI, SCSI, and ACPI
- Experience working with the Linux kernel
- Excellent communication skills for cross-team collaboration
- Strong work ethic
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!
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What We Do
Cloud platform specifically designed to train AI models
