Senior Software Engineer, 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.

The Runtime & GPU Systems team builds and operates secure, high-performance environments for multi-tenant Kubernetes platforms at scale. As a Senior Software Engineer, Sandboxes & Virtualization, you will design, build, and evolve secure sandboxed runtime environments for Kubernetes workloads, focusing on runtime isolation, performance, and security.

Responsibilities:

• 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.

Requirements:

• 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.
• Experience designing, implementing, or operating secure execution environments.
• Practical experience with lightweight virtualization and sandboxing technologies.
• Experience supporting GPU-accelerated workloads in multi-tenant environments.
• Proficient in systems-oriented programming with strong Linux internals knowledge.
• Skilled at diagnosing and resolving complex performance, reliability, or isolation issues.

Preferred Qualifications:

• 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:

• Base salary range: $182,000 to $242,000.
• Comprehensive benefits program, including 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, family-forming support, paid parental leave.
• Flexible, full-service childcare support, 401(k) with a generous employer match.
• Flexible PTO, catered lunch each day in office and data center locations.
• Casual work environment, work culture focused on innovative disruption.