AI Platform Engineer, Security

AI Platform Engineer, Security ABOUT BRAIN CO. Brain Co. is an applied AI startup co-founded by Jared Kushner and Elad Gil, and backed by leading Silicon Valley builders including Patrick Collison and Andrej Karpathy. We are building AI applications for the world’s most important institutions, delivering impact on real-world problems across governments, healthcare systems, and critical industries. Our progress so far: - Automated construction permitting for a sovereign government → 80% faster, unlocking $375M+ in value - Optimized supply chains for a leading global energy company → 30% lower cost, 99% reliability, preventing $100M+ in losses - Streamlined hospital patient care across national health systems → 40% better outcomes, 80% less admin work Company momentum: - Raised a $55M Series A from leading investors - Built a team of 70+ AI experts from Tesla, Google DeepMind, NVIDIA, and Databricks At Brain Co., we focus on applying frontier AI to real institutional challenges, working alongside governments, healthcare systems, and critical industries to modernize how essential services operate. We are looking for leaders who want to help bring new technology into institutions that impact millions of people. WHAT YOU’LL WORK ON - Build the security foundations of our AI platform: identity, isolation, and access control. - Embed security into cloud infrastructure, Kubernetes, and deployment workflows. - Create paved roads and guardrails so engineers can move fast safely. - Own auditability, detection, and incident readiness. YOU MIGHT BE A GREAT FIT IF YOU… - Have 3+ years of experience in security, platform, or infrastructure engineering. - Have designed secure systems end-to-end (not just reviewed them after the fact). - Are fluent in cloud security fundamentals (IAM, networking, KMS, secrets, isolation). - Have hands-on experience with Kubernetes and modern cloud environments. - Think in terms of threat models, trust boundaries, and failure modes. - Enjoy building paved roads and guardrails that help teams move fast safely. - Thrive in ambiguous, high-agency environments and want ownership of the security function as it grows. WHY JOIN US - Build the security foundations of a rapidly scaling AI platform used in the world’s most critical environments. - Work alongside senior engineers from Tesla, DeepMind, Databricks, and other top engineering orgs. - Shape how security is done from the ground up - Ship fast, learn constantly, and see your work deployed in production globally. - Earn competitive compensation and meaningful equity in a high-growth company. - Grow into broader ownership as the security function scales. Benefits - Competitive salary plus equity - Daily lunches - Commuter benefits - 401(k) - Medical, Dental and Vision - Unlimited PTO