Cloud Infrastructure Security Engineer (Systems/Kernel)

The role

You will safeguard bare-metal and virtualized environments to ensure security, multi-tenant isolation, and integrity of GPU cloud infrastructure. You will focus on the lowest levels of the stack to prevent tenant breakouts and secure GPU hardware allocations.

What you will do

• Design and implement robust workload and network isolation architectures for multitenant GPU bare-metal and virtualized environments.
• Harden Linux kernel configurations, container runtimes, and orchestration layers against breakouts and privilege escalation.
• Conduct deep-dive security assessments and penetration testing targeting hypervisor, network stack, and hardware interfaces.
• Write code in C, Go, or Rust to implement custom security controls, telemetry, and fixes at the OS and infrastructure level.
• Evaluate and mitigate security considerations specific to GPU architecture, PCIe pass-through, and shared memory spaces.
• Serve as the technical escalation point for infrastructure-level security incidents.
• Develop forensic capabilities for ephemeral container environments.

Required qualifications

• 5+ years of experience in infrastructure or systems-level security engineering.
• Extensive knowledge of Linux kernel internals (cgroups, namespaces, eBPF, SELinux/AppArmor).
• Deep understanding of virtualization technologies (KVM, QEMU) and workload/network isolation techniques in multitenant environments.
• Strong systems-level programming skills in C, Go, Rust, or Python.
• Familiarity with GPU architecture and hardware-level security considerations.
• Experience in securing bare-metal cloud infrastructure and mitigating lower-level CVEs.

Nice to have

• Contributions to open-source systems security projects or virtualization research.
• Experience writing or deploying eBPF-based security tooling.
• Deep knowledge of low-level networking protocols and virtualized network security.

Benefits

• Meaningful equity in a fast-growing company
• Stock options
• Generous medical, dental & vision plans
• Flexible PTO
• $1,200 Home Office & Equipment Stipend

Before you apply

• We welcome every qualified candidate eligible to work in the United States
• We are currently unable to sponsor employment visas

About the company

Runpod is the AI Developer Cloud used by more than one million developers to experiment, train, fine-tune, deploy, and scale AI. It is a small, remote-first team.