Senior Kernel & Hypervisor Security Engineer

present of AI; San Francisco (CA); On-site; USD 180,000 - 260,000; Full time

Job summary

present of AI is seeking a Senior Engineer to secure the layer beneath the application, including Linux kernels, hypervisors, and GPU drivers on shared GPU hosts. A strong candidate has kernel C skills and hands-on security experience across virtualization internals like KVM, VFIO, and IOMMU.

The role emphasizes AI fluency as part of daily tasks, leveraging AI tools for code review, vulnerability research, and tooling to improve security at scale.

Qualifications

• Years of hands-on systems or security work.
• Strong kernel C skills with an understanding of virtualization internals (KVM, VFIO, IOMMU).
• Experience shipping hardening at fleet scale and evaluating exploit paths at low level.

Responsibilities

• Secures the layer beneath the application: Linux kernels, hypervisors and sandboxes, GPU drivers and firmware, and hosts running shared GPU workloads.
• Applies vulnerability triage and risk assessment to low-level security issues at scale.
• Uses AI-enabled tooling daily for code review, tooling, and vulnerability research on kernel and GPU components.

Skills

Kernel C

Linux kernel

KVM VFIO IOMMU

Hypervisors

Rust

Go

Python

Vulnerability triage

Exploit paths

Tools

KVM

VFIO

IOMMU

GPU drivers

Job description

present of AI is seeking a Senior Engineer to secure the layer beneath the application, including Linux kernels, hypervisors, and GPU drivers on shared GPU hosts. A strong candidate has kernel C skills and hands-on security experience across virtualization internals like KVM, VFIO, and IOMMU.

The role emphasizes AI fluency as part of daily tasks, leveraging AI tools for code review, vulnerability research, and tooling to improve security at scale.