Cloud Infrastructure Security Engineer

Responsibilities

• Design and implement robust workload and network isolation architectures for multitenant GPU bare-metal and virtualized environments.
• Harden Linux kernel configurations, container runtimes (e.g., Docker, containerd), and orchestration layers (e.g., Kubernetes) against breakouts and privilege escalation.
• Conduct deep-dive security assessments and penetration testing targeting hypervisor, network stack, and hardware interfaces.
• Write code (primarily 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, 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.

Compensation & Benefits

• Competitive base pay ranges from $152,000 - $175,000 (may be inclusive of several career levels; narrowed during interview process based on experience, qualifications, and location).
• Meaningful equity in a fast-growing company (stock options for everyone).
• Generous medical, dental & vision plans.
• Flexible PTO.
• $1,200 Home Office & Equipment Stipend.
• Most roles are remote-first with collaborative teams.