Cloud Infrastructure Security Engineer (Systems/Kernel)

Responsibilities:

• Systems Isolation: Design and implement robust workload and network isolation architectures for RunPod's multitenant GPU bare-metal and virtualized environments.

• Kernel & Container Security: Harden Linux kernel configurations, container runtimes (e.g., Docker, containerd), and orchestration layers (e.g., Kubernetes) against breakouts and privilege escalation.

• Infrastructure Threat Modeling: Conduct deep-dive security assessments and penetration testing specifically targeting our hypervisor, network stack, and hardware interfaces.

• Active Defense: Write code (primarily C, Go, or Rust) to implement custom security controls, telemetry, and fixes at the OS and infrastructure level.

• Hardware Security: Evaluate and mitigate security considerations specific to GPU architecture, PCIe pass-through, and shared memory spaces.

• Incident Response: Serve as the technical escalation point for infrastructure-level security incidents, developing 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.

Preferred Qualifications:

• 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.