Systems Engineer, Kernel

CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability. Founded in 2017, CoreWeave became a publicly traded company (Nasdaq: CRWV) in March 2025. Learn more at  www.coreweave.com . What You’ll Do: CoreWeave is seeking a highly skilled and motivated Systems Kernel Engineer to join our HAVOCK Team, reporting into the Manager of Systems Engineering. In this role, you will be a key contributor to the stability, performance, and evolution of CoreWeave’s Linux based infrastructure. As a kernel generalist, you will be responsible for debugging kernel-level issues, analyzing and fixing crashes, panics, dumps, and upstreaming fixes and features that improves the performance and reliability of our stack. This position is ideal for someone who thrives in low-level systems engineering, and understands how modern workloads stress kernels, and is excited to work across a diverse hardware/software ecosystem including CPUs, GPUs, DPUs, networking, and storage. Kernel H ardware - A cceleration - V irtualization - O perating Systems - C ontainerization - K ubelet Our Team’s Stack: Python, Go, bash/sh, C Prometheus, Victoria Metrics, Grafana Linux Kernel (custom build), Ubuntu Intel/AMD/ARM CPUs, Nvidia GPUs, DPUs, Infiniband and Ethernet NICs Docker, kubernetes (k8s), KubeVirt, containerd, kubelet Focus Areas: Kernel Debugging – Analyze kernel crashes, oopses, panics, and dumps to identify root causes and propose fixes. Upstream Contributions – Develop patches for the Linux kernel and upstream them where applicable (networking, storage, virtualization, GPU/DPU enablement). Stack-Wide Support – Ensure kernel support and stability across: Virtualization (KubeVirt, QEMU, vFIO) Container runtimes (containerd, nydus, kubelet) HPC/AI workloads (CUDA, GPUDirect, RoCE/InfiniBand) Kernel-Hardware Enablement – Support new hardware bring-up across Intel, AMD, ARM CPUs, NVIDIA GPUs, DPUs, and NICs. Performance & Stability – Tune kernel subsystems for latency, throughput, and scalability in distributed HPC/AI clusters. About the role: Triage and fix kernel crashes and performance regressions. Develop, test, and upstream kernel patches relevant to CoreWeave’s hardware/software environment. Collaborate with hardware vendors and the Linux community on feature enablement. Implement diagnostics and tooling for kernel-level observability. Work closely with HPC and Fleet teams to ensure kernel readiness for production workloads. Provide kernel-level expertise during incident response and root-cause investigations. Who You Are: 5+ years of professional experience in Linux kernel engineering or systems-level development. Bachelor’s degree in Computer Engineering, Electrical Engineering, Computer Science, or a related field. Deep understanding of kernel internals (memory management, scheduling, networking, storage, drivers). Experience debugging kernel crashes, dumps, and panics using tools like crash, gdb, kdump. Strong C programming skills with the ability to write maintainable and upstream-quality code. Experience working with kernel modules, drivers, and subsystems. Strong problem-solving abilities with a “full-stack” systems perspective. Preferred: Contributions to the Linux kernel or related open-source projects. Familiarity with virtualization (KVM, QEMU, VFIO) and container runtimes. Networking stack expertise (InfiniBand, RoCE, TCP/IP performance tuning). GPU/DPU bring-up and driver experience. Experience in HPC or large-scale distributed systems. Familiarity with QA/QE best practices Experience working in Cloud environments Experience as a software engineer writing large-scale applications Experience with machine learning is a huge bonus The base salary range for this role is $165,000 to $242,000. The starting salary will be determined based on job-related knowledge, skills, experience, and market location. We strive for both market alignment and internal equity when determining compensation. In addition to base salary, our total rewards package includes a discretionary bonus, equity awards, and a comprehensive benefits program (all based on eligibility).  What We Offer The range we’ve posted represents the typical compensation range for this role. To determine actual compensation, we review the market rate for each candidate which can include a variety of factors. These include qualifications, experience, interview performance, and location. In addition to a competitive salary, we offer a variety of benefits to support your needs. The benefits below reflect our US-based offerings; for roles in other locations, benefits vary and are shared during the hiring process. These include: Medical, dental, and vision insurance - 100% paid for by CoreWeave Company-paid Life Insurance  Voluntary supplemental life insurance  Short and long-term disability insurance  Flexible Spending Account Health Savings Account Tuition Reimbursement  Ability to Participate in Employee Stock Purchase Program (ESPP) Mental Wellness Benefits through Spring Health  Family-Forming support provided by Carrot Paid Parental Leave  Flexible, full-service childcare support with Kinside 401(k) with a generous employer match Flexible PTO Catered lunch each day in our office and data center locations A casual work environment A work culture focused on innovative disruption California Applicants California Consumer Privacy Act  Equal Opportunity & Accommodations CoreWeave is an equal opportunity employer, committed to fostering an inclusive and supportive workplace.