Principal Security Engineer (Control Plane / Observability)

We're hiring a Principal Security Engineer in the Bay Area to help define how AI-driven systems are secured in production. This role is Full-Time/Direct at one of our top growth clients.This role is focused on building the control layer around long-running, agent-based workflows — observability, guardrails, and enforcement across distributed systems. It's less traditional AppSec and more about designing and implementing the systems that monitor behavior, enforce policies, and make these workflows safer and more reliable as they scale.You'll work closely with engineering leadership on systems that are already in production, shaping how security is embedded into the platform itself. This includes areas like telemetry, CI/CD guardrails, policy enforcement, and secure architecture for multi-step workflows that interact with multiple services and data sources.Backgrounds in cloud security, platform engineering, or observability tend to align well here — especially if you've built systems that enforce behavior (not just detect issues) across distributed environments. Experience with Kubernetes, cloud infrastructure, or workflow/orchestration systems is highly relevant. Exposure to AI/LLM-based systems is a plus but not required.Hybrid in Berkeley (2 days/week).Comp is ~$225–275K base + equity (~$350K+ total).This is a foundational hire with a clear path to build and own the function.