Founding Security Engineer – AI Infra & Data Security
decircleMillbrae (CA)
Founding Security Engineer – AI Infra & Data Security
Posted today
decircleMillbrae (CA)
SENIORITY
Lead
About the role
deCircle is seeking a founding-level security and infrastructure engineer to own and build the security posture from the ground up, protecting highly sensitive AI training data and workflows across integrations with leading model labs. You will design scalable security infrastructure and bridge security with development, contributing to core platform work as needed, all while based on-site in San Francisco.
Before you apply
Applying takes about a minute. These four things decide how fast it moves after that.
Your profile is current
It's what we read first. Occupations, seniority and locations matter more than a long history.
Two examples you can talk through
Not a portfolio — just two pieces of work where you can explain the decisions and what you'd change.
A number in mind
What you're on now and what would make you move. We negotiate better when we know both.
Your notice period
Employers plan around it, and it's the question that stalls offers most often.
Once you apply, someone reads it and calls you before anything reaches the employer — usually within two working days.