Staff + Software Security Engineer, Labs

Job summary

Responsibilities

Frontier AI is on track to be among the most consequential and most adversarially-targeted technology in the world. The capability curve is steep, the adversaries who want these systems are extremely well-resourced, and the security bar this will eventually require is well beyond where the…

• Own Security Labs projects end to end. You'll scope the bet, build the prototype, run it against real workloads, and bring it to either a hand-off or a documented exit
• Stand up novel security infrastructure fast (isolated clusters, attestation chains, hypervisor and runtime work, verification tooling) optimizing for what we learn rather than…
• Find the receiving team early, bring them along while you build, and hand them something they actually want to own
• Work embedded with research and infrastructure teams (Pretraining, RL, Inference, Compute) to test whether their workflows survive what you're proposing, and document precisely…
• Turn experimental results into short writeups that shape Anthropic's long-term security architecture, and into costed contingency plans we could execute on short notice

What they're looking for

• Genuinely care about where AI is heading and want to work on the security problems that determine whether it goes well. This is the most important thing on this list
• Have real depth in at least one area most software engineers don't touch (e.g. firmware or hardware security, applied cryptography, OS / kernel / hypervisor internals, formal…
• Have built and shipped things under your own direction. Maybe you founded a company or research group, maintained an open-source project other people depend on, or shipped…
• Have a track record of choosing the problem yourself and seeing it through, rather than only executing a plan someone else handed you
• Are comfortable jumping between domains and layers of the stack when the problem calls for it, and have actually done so

Tech stack

• Python
• Rust
• Go
• C++