OptiTalent · Job Finder
Jobs at Security Level 5
11 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
1–11 of 11 jobs
SL5 Fieldbuilder (Fellowships)
2 months agoSecurity Level 5 · San Francisco, California, United States
On-siteFull-time$150K – $220K a yearOperationsSecurity Level 5 is a Bay Area AI security nonprofit working with AI labs and US intelligence agencies to defend frontier models from priority nation-state-level threats. We move fast, and we're tripling headcount this year.
Senior Director for National Security
2 months agoSecurity Level 5 · San Francisco, California, United States
On-siteFull-timeDirector$180K – $280K a yearSecuritySecurity Level 5 is a Bay Area AI security nonprofit working with AI labs and US intelligence agencies to defend frontier models from priority nation-state-level threats. We move fast, and we're tripling headcount this year.
Recruiter
2 months agoSecurity Level 5 · San Francisco, California, United States
On-siteFull-time$150K – $220K a yearPeople & HRSecurity Level 5 is a Bay Area AI security nonprofit working with AI labs and US intelligence agencies to defend frontier models from priority nation-state-level threats. We move fast, and we're tripling headcount this year.
Executive Admin
2 months agoSecurity Level 5 · San Francisco, California, United States
On-siteFull-time$80K – $130K a yearOperationsSecurity Level 5 is a Bay Area AI security nonprofit working with AI labs and US intelligence agencies to defend frontier models from priority nation-state-level threats. We move fast, and we're tripling headcount this year.
Standards Researcher
2 months agoSecurity Level 5 · San Francisco, California, United States
On-siteFull-time$140K – $200K a yearScience & researchSecurity Level 5 is a Bay Area AI security nonprofit working with AI labs and US intelligence agencies to defend frontier models from priority nation-state-level threats. We move fast, and we're tripling headcount this year.
Redteaming, Auditing, and Compliance Specialist
2 months agoSecurity Level 5 · San Francisco, California, United States
On-siteFull-time$140K – $230K a yearFinanceSecurity Level 5 is a Bay Area AI security nonprofit working with AI labs and US intelligence agencies to defend frontier models from priority nation-state-level threats. We move fast, and we're tripling headcount this year.
Network Engineer
2 months agoSecurity Level 5 · San Francisco, California, United States
On-siteFull-time$200K – $350K a yearITSecurity Level 5 is a Bay Area AI security nonprofit working with AI labs and US intelligence agencies to defend frontier models from priority nation-state-level threats. We move fast, and we're tripling headcount this year.
Head of Secure Data Center Scaling
2 months agoSecurity Level 5 · San Francisco, California, United States
On-siteFull-timeDirector$250K – $500K a yearData & AISecurity Level 5 is a Bay Area AI security nonprofit working with AI labs and US intelligence agencies to defend frontier models from priority nation-state-level threats. We move fast, and we're tripling headcount this year.
SL5 Standards Lead
4 months agoSecurity Level 5 · San Francisco, California, United States
On-siteFull-timeLead / staff$200K – $240K a yearEngineeringLead the SL5 standard end to end. It's a NIST SP 800-53 overlay, with physical requirements from ICD 705, supply chain from NIST 800-161, across five streams: network, physical, machine, personnel, supply chain. The current version is a v0.1 draft with open questions and a…
Security Level 5 · San Francisco, California, United States
On-siteFull-timeLead / staff$200K – $350K a yearEngineeringDesigning and operationalizing the network architecture, machine, physical, personnel, or supply chain security needed to implement an SL5 datacenter; Threat modeling AI training infrastructure against nation-state adversaries; Red-teaming critical AI infrastructure; Designing…
Security Level 5 · San Francisco, California, United States
On-siteFull-timeLead / staff$200K – $350K a yearEngineeringAn SL5 datacenter requires infrastructure engineering at the frontier of security. You would set up and operate networks with extremely strict security properties, zero-trust concepts and bespoke security components, all without Internet access and still capable of training…
Updated 06 Nov 2026 09:37 UTC from the OptiTalent job library.