Software Engineer, Security

About the role

We are hiring an experienced security engineer with 10+ years of experience to own cross-cutting programs at the intersection of product, infrastructure, and AI.

You will be hands-on with core security primitives while coordinating across 5–10+ engineering teams to land multi-quarter changes safely—often in customer-facing, enterprise-critical surfaces (identity, authz, domain posture, and AI agent safety).

This role can be based in either San Francisco or New York City.

We work from our offices on Mondays, Tuesdays and Thursdays (our Anchor Days) because we do our best thinking and building together in person.

What You'll Achieve

• Modernize and migrate authentication across Notion’s product surfaces (SAML/OIDC, OAuth flows, session semantics, passkeys, CSP, redirect handling), landing multi-quarter changes with clear rollout plans and minimal customer disruption.
• Build and operate Notion’s AI safety guardrail stack, including prompt-injection protections (vendor evaluation, deployment model decisions, integration with agents) and an external-source provenance system for AI-generated content across Mail, Calendar, and MCP.
• Advance our authorization platform direction by driving crisp architectural trade-offs (e.g., SpiceDB vs. Macaroons) and shipping reusable primitives that product teams can adopt without bespoke security work.
• By day 90: own one P0 security program end-to-end—RFC, rollout plan, partner alignment, execution, and measurable risk reduction—plus ship one piece of AI leverage (e.g., an internal security agent for triage/verification/continuous checks) that improves correctness and reduces time-to-resolution.
• By end of year 1: raise the bar on security engineering craft by setting clearer standards for secure primitives (auth/authz, provenance, domain posture), improving adoption paths for partner teams, and reducing recurring classes of vulnerabilities through better systems—not heroics.

Skills You'll Need To Bring

• Demonstrated ability to ship security-critical infrastructure in production systems (identity/authentication, authorization, platform primitives), including migrations that affect customers and require careful rollout and backwards compatibility.
• Strong judgment navigating ambiguous trade-offs (security vs. product velocity, correctness vs. ergonomics, centralized platforms vs. local autonomy), with a track record of writing clear RFCs and aligning cross-functional stakeholders.
• Experience building or operating AI/LLM security protections (e.g., prompt injection, tool/data provenance, policy enforcement) or a clear ability to ramp quickly and lead in an emerging domain.
• High agency and systems mindset: you proactively find the real constraint, unblock partner teams, and build primitives that compound across the org (not one-off fixes).
• Comfort mentoring and multiplying others—through intern/project ownership, enablement sessions, and pragmatic security guidance that engineers actually adopt.

Pay

The compensation offered for this role will be based on multiple factors such as location, the role's scope and complexity, and the candidate's experience and expertise, and may vary from the range provided below.

For roles based in San Francisco, the estimated base salary range for this role is $290,000 - $350,000 per year.

Benefits

We provide highly competitive cash compensation, equity, and benefits.

Equal Opportunity & Accommodations

We hire talented people from a wide range of backgrounds. If you’re excited about this role but don’t meet every bullet, we still encourage you to apply.

Notion is an equal opportunity employer and does not discriminate on the basis of any legally protected characteristic.

Consistent with applicable law, we will consider for employment qualified applicants with arrest and conviction records.

Notion provides reasonable accommodations during the application process; if you need one, please let your recruiter know.

Notion is also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures.