About the role
Job Application for Staff Security Engineer, Infrastructure at fal Back to jobs New Staff Security Engineer, Infrastructure San Francisco Apply
About
the Role We’re looking for a Security Engineer, Infrastructure to secure the core systems that power fal.ai’s platform: GPU compute, multi-cloud environments, networking, and data pipelines. You’ll operate across the full stack, from cloud and Kubernetes to identity, networking, and secrets, designing and implementing security controls that scale with a high-performance AI platform. This role is highly hands-on and systems-oriented, sitting at the intersection of security, infrastructure, and distributed systems. What You’ll Do Build & Harden Infrastructure Security Design and implement security controls across: Cloud infrastructure Kubernetes and containerized workloads Networking, service meshes, and edge systems CI/CD pipelines and deployment systems Secure compute environments for GPU workloads and model execution Identity, Secrets & Access Machine identity and workload authentication Secrets management and encryption (e.g., Vault, KMS) Least-privilege access and short-lived credentials Implement Zero Trust principles across infrastructure Secure AI & Data Systems Protect model weights, inference endpoints, and customer data Design secure data access pathways and isolation mechanisms Ensure safe multi-tenant execution environments Automation & Security Tooling Build security guardrails directly into infrastructure and CI/CD Use Infrastructure-as-Code (Terraform, Pulumi) to enforce secure defaults Continuously identify and remediate security gaps through automation Threat Modeling & Risk Reduction Identify and mitigate risks across infrastructure layers Defend against both external attackers and insider threats Drive projects like network isolation, encryption, and secure service communication Cross-Functional Collaboration Partner with platform, infra, and ML teams to drive shift-left security Enable engineers to move fast with secure-by-default systems Contribute to a strong security culture across the company What We’re Looking For Core