Sr. Software Engineer II, Sandboxes & Virtualization

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 .

What Youll Do:

The Runtime & GPU Systems team builds and operates secure high-performance environments for multi-tenant Kubernetes platforms at scale. Our team sits at the intersection of container runtimes lightweight virtualization GPU infrastructure and Linux systems engineering. We partner closely with security platform and GPU infrastructure teams to deliver robust isolated and efficient execution environments for AI-driven workloads.

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 youll 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.

Some of what youll work on:

• 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.

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) 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.

Wondering if youre a good fit

We believe in investing in our people and value candidates who can bring their own diversified experiences to our teams even if you arent a 100% skill or experience match.

Why CoreWeave

At CoreWeave we work hard have fun and move fast! Were in an exciting stage of hyper-growth that you will not want to miss out on. Were not afraid of a little chaos and were constantly learning. Our team cares deeply about how we build our product and how we work together which is represented through our core values:

• Be Curious at Your Core
• Act Like an Owner
• Empower Employees
• Deliver Best-in-Class Client Experiences
• Achieve More Together

We support and encourage an entrepreneurial outlook and independent thinking. We foster an environment that encourages collaboration and enables the development of innovative solutions to complex problems. As we get set for takeoff the organizations growth opportunities are constantly expanding. You will be surrounded by some of the best talent in the industry who will want to learn from you too. Come join us!

The base salary range for this role is $182000 to $242000. 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 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 weve 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 full-time employees; 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

Equal Opportunity & Accommodations

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: .

Export Control Compliance

This position requires access to export controlled information. To conform to U.S. Government export regulations applicable to that information applicant must either be (A) a U.S. person defined as a (i) U.S. citizen or national (ii) U.S. lawful permanent resident (green card holder) (iii) refugee under 8 U.S.C. 1157 or (iv) asylee under 8 U.S.C. 1158 (B) eligible to access the export controlled information without a required export authorization or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency. CoreWeave may for legitimate business reasons decline to pursue any export licensing process.

Required Experience:

Senior IC