Lead Security Engineer
Physical Intelligence
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San Francisco, CA · Posted October 23, 2026
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Where San Francisco, CA ranks
Where San Francisco, CA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #1Best cities for security jobs316 openings · of 20
- #1Best cities for technology jobs7,178 openings · of 100
- #1Best cities for financial services pay after cost of living$173k · of 33
- #1Best cities for entry-level jobs that want AI skills35% · of 100
- #1Best cities for entry-level jobs that want AI skills in the West Coast35% · of 54
- #1Cities with the most jobs that do not need a four-year degree in the West Coast902 jobs · of 47
Rankings about security jobs
- Best cities for security jobs #1 San Francisco (316 openings)
- Best cities for security pay after cost of living #1 San Mateo ($241k)
- Most requested AI skills in security jobs #1 AI tools in daily work (10.8%)
- Employers with the most security jobs #1 Amazon (318 roles)
How AI is used in this kind of work
Among computer occupations, all other, AI is already used for a large share of the tasks. Measured exposure for computer occupations, all other: 31% (high).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
Skills this job asks for
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About the job
WHO WE ARE
Physical Intelligence is bringing general-purpose AI into the physical world. We are a group of engineers, scientists, roboticists, and company builders developing foundation models and learning algorithms to power the robots of today and the physically-actuated devices of the future.
THE TEAM
You will work alongside the researchers and engineers bringing general-purpose AI into the physical world. We value pragmatism, initiative, and people who enjoy solving problems together. You will have the autonomy to identify what matters most and see improvements through.
ABOUT THE ROLE
You will secure the models, data, infrastructure, and compute that power Physical Intelligence. This is a hands-on role for someone who likes digging into systems and building reliable tools that help researchers and engineers work securely at speed. You will prioritize the biggest risks and build practical protections that keep pace with how we work.
IN THIS ROLE YOU WILL
- Build and operate systems that protect our models, data, and compute.
- Partner with researchers and engineers on architecture and development workflows.
- Automate access management, infrastructure safeguards, and software delivery checks.
- Write production-quality tools and contribute fixes directly to engineering repositories.
- Find and exploit vulnerabilities, assess their impact, and validate fixes with system owners.
- Set security priorities and bring in outside expertise where needed.
WHAT WE HOPE YOU’LL BRING
- Strong programming skills in Python, Go, or similar languages, including reviewing unfamiliar code and shipping maintainable software.
- A 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.
- Connections in the security community and curiosity about emerging threats and techniques.
- Hands-on offensive security experience and sound judgment about real-world risk.
BONUS POINTS
- Experience securing AI/ML infrastructure or agent execution environments.
- Experience building detection systems or helping establish a security function.
- Excitement about robotics and a desire to learn.
Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.