Tinfoil (YC P25) is hiring an applied AI security engineer in San Francisco

Tinfoil, a YC-backed security research lab that provides AI cloud infrastructure for private and verifiable computation, is hiring an Applied AI Security Engineer in San Francisco. The role involves serving as a technical advisor to enterprise customers in regulated industries and AI labs, guiding them from initial technical discovery through deployment while also providing feedback to the product and engineering teams. The position requires in-person presence at least 3 days per week and demands both deep technical expertise in security and the ability to communicate complex capabilities to diverse audiences.