Security - Member of Technical Staff

Responsibilities

• Own security across the company’s infrastructure, product, and operations as the first security hire.
• Track exploits, supply-chain risks, and third-party breaches; assess exposure and lead remediation.
• Manage access and credentials, including short-lived credentials and tightly controlled API keys.
• Build logging, alerting, monitoring, and detection across cloud, clusters, networks, and SaaS tools.
• Secure products, cloud infrastructure, GPU clusters, and AI-agent sandboxes.
• Own security operations including SSO, MFA, and endpoint security.

Requirements

• 5+ years of security engineering experience with hands-on ownership of cloud and infrastructure security.
• Strong software engineering skills and experience building security tooling.
• Experience running incident response and vulnerability management.
• Strong understanding of AI security, including AI-agent threat models and security applications of AI.
• Startup experience or experience building a security program from scratch is preferred.
• Experience securing ML research infrastructure or AI-agent sandboxes is preferred.
• Application or product security experience is preferred.
• Corporate security experience with SSO, MFA, and endpoint management is preferred.

Benefits

• Market-competitive salary, equity, and competitive benefits.
• Based at the San Francisco headquarters with in-person work five days per week and one company-wide remote week per month.
• Reports to the CTO.
• Opportunity to work on AI interpretability, security, and AI safety at a public benefit corporation.