Sierra
Security Engineer
$230K–$390K
San Francisco, CA · On-site · Full-time · Posted Apr 30, 2025
About the job
Build and operate security systems, controls, and tooling that protect Sierra’s platform, customer data, and AI products while enabling product and engineering teams.
What you'll do
- Design and ship security systems and controls across product, infrastructure, enterprise, identity, and detection and response.
- Threat model designs, review code and architectures, and develop security primitives with product, platform, and infrastructure teams.
- Identify vulnerabilities and suspicious behavior, improve detections and response, and automate security workflows.
What they ask for
- Strong security fundamentals and depth in at least one security domain.
- Ability to read and write code, understand production systems, and contribute to system design, APIs, services, and security controls.
- Ability to own ambiguous cross-cutting problems from investigation and alignment through production implementation.
Nice to have
- Experience across multiple security domains or building security frameworks, platforms, or solutions at scale.
- Exposure to AI systems or interest in secure-by-default LLM applications and agentic systems; experience finding or fixing production security issues.
Pay
$230K – $390K (base salary)
Tools
CI/CD, LLM
AI focus
Security work may include designing secure-by-default LLM applications and agentic systems.
Model-written summary · the original posting is authoritative