About Nebius
Nebius is leading a new era in cloud infrastructure for the global AI economy. We are 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. Built by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI.
Responsibilities
•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
Requirements
•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)
Nice to have
•Accepted 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
Conditions
•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
•Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI
