Member of Technical Staff (Secure Infrastructure and Platform) is open at Security Level 5 in San Francisco, CA. The posting gives a salary of $200K - $350K. Posted on Jun 23, 2026, and still on Security Level 5’s careers page when we last checked, on Nov 15, 2026.
About the role
An 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 large models. The network you'll be building won't actually be SL5, but will implement the novel and difficult security interventions needed for…
The opening lines of the posting. The rest is on Security Level 5’s careers page.
Hiring at Security Level 5
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