Crusoe
Staff Kernel Security Engineer
$215K–$260K
San Francisco, CA - US · On-site · Staff · Full-time · Posted Oct 6, 2026
- Experience
- Minimum 5 years of relevant industry experience, including at least 3 years focused on low-level operating systems or kernel security.
- Education
- Bachelor's degree in Computer Science, Computer Engineering, or a related field.
About the job
Strengthen Linux kernel, operating system, and hypervisor security for Crusoe’s AI cloud through hardening, vulnerability response, security auditing, and isolation improvements.
What you'll do
- Triage kernel CVEs, research vulnerabilities, and implement or backport security fixes.
- Harden kernel configurations, boot security, access controls, and Cloud Hypervisor isolation; establish CI guardrails and fuzzing coverage.
- Lead secure development practices, audits, incident support, and technical guidance across engineering teams.
What they ask for
- Deep knowledge of Linux kernel internals and security vulnerabilities, mitigations, and exploitation techniques.
- Secure coding and security-focused code review experience, particularly in C; experience with CVE remediation and automation.
- Proficiency with kernel debugging tools (GDB, crash, kgdb) and security analysis tools (valgrind, address sanitizers, fuzzers).
- Must pass a background check.
Nice to have
- Contributions to kernel security projects or open-source kernel security initiatives; familiarity with hypervisor security.
- Experience with HSMs or TPMs, or a background in kernel-level offensive security or penetration testing.
Pay
up to $215,000 -$260,000 USD base salary + Bonus; Restricted Stock Units are included in all offers.
Tools
Linux Kernel, C, GDB, crash, kgdb, valgrind, Cloud Hypervisor, AMD SEV-SNP
AI focus
Secures the Linux kernel and hypervisor infrastructure supporting AI workloads; advances confidential computing primitives including AMD SEV-SNP and Intel TDX.
Model-written summary · the original posting is authoritative