Sierra
Software Engineer, Security
$230K–$390K
San Francisco, CA · On-site · Full-time · Posted Jan 7, 2026
About the job
Build security systems and controls that protect customer data and make Sierra’s AI agent platform secure by default.
What you'll do
- Design and ship security foundations across agents, infrastructure, backend, and frontend, including identity, access control, privacy, and data security.
- Develop controls for AI agent safety, including runtime policy enforcement, sandboxing, and protections against data leakage and unauthorized actions.
- Build security tooling and automation, such as CI/CD checks, schema validation, and runtime monitoring.
What they ask for
- Experience building and maintaining production systems.
- Ability to design APIs and integrate authentication or identity frameworks.
- Security mindset focused on data flows, least privilege, and transparency.
- Ability to own ambiguous, cross-cutting problems through production.
Nice to have
- Experience with privacy, identity, trust and safety, authentication/authorization, or data protection systems.
- Experience building security tooling or CI/CD automation, or exposure to AI systems and secure LLM applications.
Pay
$230K – $390K (base salary)
Tools
CI/CD
AI focus
Secure AI agent systems against data leakage, unauthorized actions, and manipulation; implement runtime policies and sandboxing.
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