Listen Labs
Member of Technical Staff, Application Security
$180K–$300K
San Francisco, CA +1 · On-site · Staff · Full-time · Posted Oct 7, 2026
- Location
- San Francisco, CA
New York, NY
About the job
Build and ship application security protections for Listen Labs’ AI-native platform, APIs, infrastructure, and development workflows.
What you'll do
- Design and implement protections for sensitive data, tenant isolation, authentication, authorization, and agent-facing APIs.
- Threat-model AI features and address risks such as prompt injection, data exfiltration, and unsafe tool permissions.
- Build security engineering tools and patterns, review architecture and code, and ship fixes directly.
What they ask for
- Production coding ability and comfort with a modern backend stack; junior-level or better development skills.
- Application security fundamentals, including authentication and authorization, cloud and infrastructure security, secrets management, secure API design, and common web and backend vulnerabilities.
- Ability to reason about trust boundaries, threat models, and root causes of security failures.
- Strong written communication and ability to own work end to end.
Nice to have
- Prior LLM security experience.
Pay
$180,000 – $300,000 USD base salary
Tools
TypeScript, Terraform, OAuth/OIDC, RBAC, SAST/DAST/SCA, LLM
AI focus
Secure AI interviewer, Study Composer, and Research Agent features, addressing prompt injection, model-output data exfiltration, tool and agent permissions, and other LLM risks.
Model-written summary · the original posting is authoritative