Member of Technical Staff - Infrastructure Security

Required

• Strong experience securing production cloud infrastructure, with a solid understanding of identity, networking, operating systems, and distributed systems.
• Hands-on engineering ability. You can write and review code, work with infrastructure-as-code, debug unfamiliar systems, and implement the improvements you recommend.
• Good security judgment. You can distinguish meaningful risks from theoretical ones, make sensible tradeoffs, and explain why a particular security improvement matters.
• Experience working closely with infrastructure or platform engineers, including designing changes that are practical to deploy and operate.
• Experience in using LLMs and agents for security work, along with a clear-eyed view of where they help, where they don't, and how they themselves can be attacked.
• Comfort working with real autonomy, finding your way through complex systems, and turning loosely defined problems into concrete improvements.
• Experience with GPU clusters, ML infrastructure, multi-tenant services, Kubernetes, and software supply-chain security would be particularly relevant, but none is a prerequisite. We're more interested in people who have solved difficult security problems in real systems than in candidates who can check every box on a technology list.
• How We Work Together
• We’re a distributed team with real offices that people actually use. This role is based in San Francisco, and you’ll join us in the office at least 2 days a week, or one full week every other week.
• Everything we do is grounded in four values:
• Obsessed. We are a frontier research lab. The science has to be right, the understanding deep, the product beautiful.
• Low Ego. The work speaks. The best idea wins, no matter who said it. Credit is shared. Nobody is above any task.