Job brief: Staff + Software Security Engineer, Labs

What JoRoute checked · Checked by JoRoute

• Listed on Anthropic's own job board. JoRoute does not take listings from job ads or recruiters.
• First seen by JoRoute 2026-11-04 (3 days ago); last confirmed on the board 2026-11-07.
• The apply link opens job-boards.greenhouse.io, the address Anthropic's board gives for this job.
• No other listing with this title and place on this board in the last 90 days.
• No layoff notices (WARN) under this name in the state files JoRoute reads.

What the listing says · Employer's own words, not checked

• Pay: $320,000 to $485,000 a year
• Job type: Not stated
• Where: San Francisco, CA | New York City, NY | Seattle, WA · San Francisco, CA
• Posted: 2026-10-05

What the job asks · Employer's own words, not checked

Level: Lead / staff. The title says "Staff".

Must have

• Minimum education: Bachelor’s degree or an equivalent combination of education, training, and/or experience
• Required field of study: A field relevant to the role as demonstrated through coursework, training, or professional experience
• Minimum years of experience: Years of experience required will correlate with the internal job level requirements for the position

Conditions

• Standing up a prototype high-assurance research cluster: running real Anthropic training and research workloads under extreme isolation and physical security controls, and finding…
• Location-based hybrid policy: Currently, we expect all staff to be in one of our offices at least 25% of the time. However, some roles may require more time in our offices.

Main duties

• 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 docum…
• Stand up novel security infrastructure fast (isolated clusters, attestation chains, hypervisor and runtime work, verification tooling) optimizing for what we…
• 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…
• Turn experimental results into short writeups that shape Anthropic's long-term security architecture, and into costed contingency plans we could execute on s…

Lines copied from the posting, not rewritten. "Preferred" or "nice to have" items are not listed as must-haves.

How it compares · Compared by JoRoute from listings

• Typical listed pay for software engineer jobs in New York, NY: $217k a year (216 listings, 24 employers). This listing is 86% higher.
• Across Anthropic's 544 open listings, 53% of those with a posting date were first posted more than 60 days ago. How Anthropic hires

What nobody outside the employer knows · Not known

• Whether the role is already filled or on hold: employers often leave listings up.
• How many people applied, and who reads the applications.
• Where in the published range an offer would land.

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Next steps

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