{"id":2243308,"url":"https://alion.io/job/nebius-senior-hypervisor-engineer-2","title":"Senior Hypervisor Engineer","company":{"id":6364,"name":"Nebius","domain":"nebius.com","url":"https://alion.io/company/nebius","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":75,"open_postings":135,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-12T06:55:09Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_regions","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["London, United Kingdom","Berlin, Germany"],"countries":["GB","DE"],"hiring_countries":["DE","FR","GB","AT","BE","BG","HR","CZ","DK","FI","HU","IE","IT","NL","NO","PL","RO","ES","SE","CH","EE","GR","IS","LV","LI","LT","LU","MT","PT","SK","SI"],"hiring_countries_total":31,"salary":null,"salary_estimate":{"min_usd":93000,"max_usd":211000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":6708},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"KVM","optional":false},{"name":"Linux","optional":false},{"name":"QEMU","optional":false}],"status":"live","first_seen_at":"2025-03-14T19:14:50Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-10-12T13:38:34Z","board_verified":true,"closed_at":null,"days_open":576,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":576},"description":"About Nebius:\nNebius 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.\nBuilt by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI.\nListed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D.\nThe role\nWe’re looking for a Senior Hypervisor Engineer to contribute to the development of our hyperscaler platform.\nThe 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.\nYou will work on substantial extensions for the QEMU/KVM virtualization stack in close cooperation with the opensource community.\nIn this position, your responsibility will be to:\nOptimize I/O for emulated disk and network devices\nIntegrate the hypervisor with other platform services and storage facilities for user data\nEfficiently distribute resources between virtual machines\nImprove guest system support\nAdvance the cutting-edge of open source virtualization\nProvide low-level security for the hypervisor and emulator\nProvide general support, fix bugs, and monitor the upstream\nCollaborate with other team members and stakeholders\nWe expect you to have:\n5+ years of professional software engineering experience\nFluent in C programming language\n3+years of experience with Linux\nAt least 3 years of engineering experience with QEMU/KVM\nGeneral understanding of x86-compatible systems (virtual memory, interrupts, privilege rings)\nExperience 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)\nIt would be an added bonus if you had:\nAсcepted patches in Linux Kernel or QEMU/KVM\nExperience working with Linux kernel\nSome experience with ARMv8, including virtualization extensions\nUnderstanding of PCI, SCSI, and ACPI\nExperience working with the Linux kernel\nExcellent communication skills for cross-team collaboration\nStrong work ethic\nWe conduct coding interviews as part of the process.\nBenefits & Perks:\nCompetitive compensation\nCareer growth and learning opportunities\nFlexibility and ownership\nCollaborative and innovative culture\nOpportunity to work on impactful AI projects\nInternational environment and talented teams\nWhat's it like to work at Nebius:\nFast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI \nEqual Opportunity Statement:\nNebius is an equal opportunity employer. We are committed to fostering an inclusive and diverse workplace and to providing equal employment opportunities in all aspects of employment. 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