Physical Intelligence
Lead Security Engineer
San Francisco · On-site · Full-time · Posted Oct 23, 2026
About the job
Secures the models, data, infrastructure, and compute used to develop and operate Physical Intelligence’s AI systems.
What you'll do
- Build and operate protections for models, data, and compute, including automating access management, infrastructure safeguards, and software delivery checks.
- Partner with researchers and engineers on architecture and development workflows; write production-quality security tools and contribute code fixes.
- Find and exploit vulnerabilities, assess risks, validate fixes, and set security priorities.
What they ask for
- Strong programming skills in Python, Go, or similar languages, including reviewing unfamiliar code and shipping maintainable software.
- Track record of partnering with engineering teams to solve problems from discovery through rollout.
- Experience operating and securing cloud infrastructure, including Linux, IAM, networking, containers, or CI/CD.
- Hands-on offensive security experience and sound judgment about real-world risk.
Nice to have
- Experience securing AI/ML infrastructure or agent execution environments.
- Experience building detection systems or helping establish a security function; interest in robotics and willingness to learn.
Tools
Python, Go, Linux, IAM, networking, containers, CI/CD
AI focus
Secure the models, data, infrastructure, and compute that power AI systems; securing AI/ML infrastructure or agent execution environments is a bonus.
Model-written summary · the original posting is authoritative