Senior Software Engineer (Sandboxes & Virtualization)

About this role

• The team is responsible for building and operating secure, high-performance runtime environments that power multi-tenant Kubernetes platforms at scale
• We sit at the intersection of container runtimes, lightweight virtualization, GPU infrastructure, and Linux systems engineering
• Our mission is to deliver robust, isolated, and efficient execution environments for GPU-accelerated and AI-driven workloads, partnering closely with security, platform, and GPU infrastructure teams to define and implement best-in-class isolation and performance standards
• In this role, you will design, build, and evolve secure sandboxed runtime environments for workloads running on Kubernetes, with a strong emphasis on runtime isolation, performance, and security
• You will develop platforms that integrate container runtimes, lightweight virtual machines, and virtualization technologies, while engineering support for GPU-accelerated workloads in multi-tenant environments
• Day-to-day, you’ll design GPU-aware sandboxing and scheduling strategies, optimize containerization and I/O performance for latency-sensitive workloads, and build systems capable of safely executing untrusted or shared GPU workloads
• You’ll also contribute to architectural decisions across Linux internals, container runtimes, virtualization layers, and GPU drivers to ensure long-term scalability and operational excellence- Experience diagnosing and resolving complex performance, reliability, or isolation issues across containers, virtual machines, and underlying infrastructure
• Experience conducting profiling, benchmarking, and performance tuning across runtime, virtualization, and GPU stacks
• Demonstrated experience designing, implementing, or operating secure execution environments such as container runtimes, sandboxed workloads, or virtualized systems
• You’re an expert in reasoning about tradeoffs between isolation, performance, and operability
• You love building high-performance systems that operate reliabl...