Notion
AI Software Engineer, Security
About this role
Notion seeks an experienced Security Engineer to lead cross-functional security initiatives spanning authentication, authorization, and AI safety. You'll own critical infrastructure migrations and guardrail systems while coordinating across multiple engineering teams to advance enterprise security and AI agent capabilities.
What you'll do
- Modernize authentication systems across product surfaces (SAML/OIDC, OAuth, passkeys, CSP) with multi-quarter rollout strategies
- Build and operate AI safety guardrail infrastructure including prompt-injection protections and content provenance systems
- Drive authorization platform architecture decisions and ship reusable security primitives for product teams
- Own end-to-end P0 security programs from RFC through execution and risk measurement
- Develop AI-leveraged internal security tools to improve triage, verification, and continuous security checks
- Mentor teams and establish security engineering standards to reduce vulnerability classes organization-wide
What they're looking for
- Production security infrastructure (identity, authentication, authorization)
- Security-critical system migrations with backwards compatibility
- AI/LLM security protections (prompt injection, tool provenance, policy enforcement)
- Cross-functional alignment and RFC writing
- Systems thinking and problem constraint identification
- Team mentorship and security enablement
- Platform primitives design
- 10+ years security engineering experience
Benefits
- Highly competitive cash compensation ($290,000–$350,000 base in SF)
- Equity compensation
- Flexible work model (3 anchor days on-site: Mon/Tue/Thu)
- Choice of San Francisco or New York City location
- Opportunity to work on mission-critical AI safety and enterprise security
- Mentorship and multiplier-focused role
Opens the official application on the employer’s site. No login required.
Notion
Notion builds an AI-powered collaborative workspace platform used by millions for productivity, featuring capabilities like search, automations, and AI-assisted features. The company is hiring software engineers for core product and AI development, technical support engineers for enterprise customers, data platform engineers for foundational systems, and security engineers for infrastructure and AI safety initiatives.
- Website
- notion.so
Likely interview questions
- Walk us through a security-critical infrastructure migration you've led in production—what were the biggest risks, how did you plan the rollout, and how did you minimize customer disruption?
- Describe your experience with authentication systems (SAML, OIDC, OAuth, passkeys). What's a complex migration or modernization you've owned, and what did you learn?