Senior Software Engineer, Sandboxes & Virtualization

What You’ll Do Design and implement secure execution environments for containerized and virtualized workloads. Build GPU‑aware scheduling, isolation, and resource management strategies for multi‑tenant workloads. Optimize container, VM, and I/O performance across GPU‑accelerated workloads. Conduct profiling, benchmarking, and performance tuning for runtime, virtualization, and GPU stacks. Contribute to architectural decisions across Linux internals, container runtimes, virtualization layers, and GPU drivers. Collaborate with security, platform, and infrastructure teams to define and implement runtime isolation and performance standards. About The Role As a GPU & Runtime Systems Engineer, you will design, build, and evolve secure sandboxed runtime environments for Kubernetes workloads, focusing on runtime isolation, performance, and security. You will integrate container runtimes, lightweight VMs, and virtualization technologies to support GPU‑accelerated workloads in multi‑tenant environments. Day‑to‑day, you’ll develop GPU‑aware sandboxing and scheduling strategies, optimize containerization and I/O performance for latency‑sensitive workloads, and influence architectural decisions across Linux internals, container runtimes, virtualization layers, and GPU drivers. Who You Are 3+ years of experience in systems, platform, infrastructure, or production engineering at scale. Strong hands‑on experience with Kubernetes, container orchestration, and cloud‑native architectures, including controllers, operators, or scheduling extensions. Experience designing, implementing, or operating secure execution environments (container runtimes, sandboxed workloads, or virtualized systems). Practical experience with lightweight virtualization and sandboxing technologies (e.g., Kata Containers, gVisor, KubeVirt, QEMU). Experience supporting GPU‑accelerated workloads in multi‑tenant environments, including GPU scheduling, isolation, device passthrough, mediated devices, or virtualization. Proficient in systems‑oriented programming (Go, C/C++, Rust, Bash) with strong Linux internals knowledge. Skilled at diagnosing and resolving complex performance, reliability, or isolation issues across containers, VMs, and infrastructure. Experienced in profiling, benchmarking, and tuning performance across runtime, virtualization, and GPU stacks. Preferred Experience building systems for safely executing untrusted or sensitive workloads in shared environments. Familiarity with GPU drivers and low‑level virtualization or I/O optimization techniques. Experience defining threat models and implementing runtime security policies in multi‑tenant systems. What We Offer The base salary range for this role is $139,000 to $242,000. The starting salary will be determined based on job‑related knowledge, skills, experience, and market location. In addition to base salary, the total rewards package includes a discretionary bonus, equity awards, and a comprehensive benefits program (all based on eligibility). 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. Export Control Compliance Applicants must be a U.S. person, defined as a U.S. citizen or national, U.S. lawful permanent resident, refugee, or asylee. Applicants must be eligible to access the export‑controlled information without a required export authorization, or be reasonably likely to obtain the required authorization from the applicable U.S. government agency. CoreWeave may, for legitimate business reasons, decline to pursue any export licensing process. CoreWeave is an equal opportunity employer, committed to fostering an inclusive and supportive workplace. All qualified applicants and candidates will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information. As part of this commitment and consistent with the Americans with Disabilities Act (ADA), CoreWeave will ensure that qualified applicants and candidates with disabilities are provided reasonable accommodations for the hiring process, unless such accommodation would cause an undue hardship. If reasonable accommodation is needed, please contact: View email address on click.appcast.io. California Consumer Privacy Act – California applicants only. Our workplace prioritizes a hybrid environment; remote work may be considered for candidates located more than 30 miles from an office, based on role requirements for specialized skill sets. New hires will be invited to attend onboarding at one of our hubs within their first month. Teams also gather quarterly to support collaboration. #J-18808-Ljbffr CoreWeave