Senior Hardware engineer (R&D / GPU / AI)

Why work at Nebius Nebius is leading a new era in cloud computing to serve the global AI economy. We create the tools and resources our customers need to solve real-world challenges and transform industries, without massive infrastructure costs or the need to build large in-house AI/ML teams. Our employees work at the cutting edge of AI cloud infrastructure alongside some of the most experienced and innovative leaders and engineers in the field. Where we work Headquartered in Amsterdam and listed on Nasdaq, Nebius has a global footprint with RD hubs across Europe, North America, and Israel. The team of over 800 employees includes more than 400 highly skilled engineers with deep expertise across hardware and software engineering, as well as an in-house AI RD team. The role Nebius is looking for a System Engineer (Servers Hardware RD Team) to support our expanding North American operations. This position requires occasional on-site presence in our Data Center locations as needed. Your responsibilities will include: Participate in the design, deployment, and maintenance of high-performance cloud systems optimized for AI workloads. Arrange and perform hardware RD tests and experiments on-site in data center environments. Troubleshoot and resolve complex system issues related to GPUs, networking (InfiniBand, NVLink), PCIe, and server infrastructure. Conduct deep investigations into hardware, software, and networking issues to ensure optimal system performance and reliability. Develop and execute test plans and methodologies for advanced GPU, InfiniBand, and compute systems to benchmark and validate performance. Collaborate closely with cross-functional engineering and operations teams to improve system performance and reliability. Monitor system performance and continuously fine-tune configurations for maximum efficiency. What we expect you to have: Strong knowledge of modern server architecture, particularly in high-performance, GPU-based environments. Hands-on experience with GPUs, networking, NVLink, and PCIe technologies. Proficiency in Linux systems, with experience using Python and Bash for automation and tooling. Demonstrated ability to troubleshoot complex hardware, software, and networking issues. Experience with deep problem investigation, root cause analysis, and performance optimization in cloud or high-performance computing environments. Strong analytical and problem-solving skills with a performance-first mindset. Basic electronics modification skills, including soldering and wiring. It will be an added bonus if you have: Knowledge of the Linux kernel and experience with kernel-level debugging or troubleshooting. Familiarity with electronic measurement equipment such as oscilloscopes and multimeters. Key employee benefits: Health insurance: 100% company-paid medical, dental, and vision coverage for employees and families. 401(k) plan: up to 4% company match with immediate vesting. Parental leave: 20 weeks paid for primary caregivers, 12 weeks for secondary caregivers. Remote work reimbursement: up to $85/month for mobile and internet. Disability life insurance: company-paid short-term, long-term and life insurance coverage. Compensation We offer competitive salaries, ranging from $150k- $200k base + quarterly performance bonuses. Join Nebius Today! What we offer Competitive salary and comprehensive benefits package. Opportunities for professional growth within Nebius. Flexible working arrangements. A dynamic and collaborative work environment that values initiative and innovation. 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! ... (truncated, view full listing at source)