Application Security Engineer, AI Security

Company: Notion
Location: San Francisco
Posted on: April 2, 2026

Job Description:

About Us: Notion helps you build beautiful tools for your life’s work. In today's world of endless apps and tabs, Notion provides one place for teams to get everything done, seamlessly connecting docs, notes, projects, calendar, and email—with AI built in to find answers and automate work. Millions of users, from individuals to large organizations like Toyota, Figma, and OpenAI, love Notion for its flexibility and choose it because it helps them save time and money. In-person collaboration is essential to Notion's culture. We require all team members to work from our offices on Mondays, Tuesdays, and Thursdays, our designated Anchor Days. Certain teams or positions may require additional in-office workdays. About the role: Millions of people use Notion — and this number is increasing every day. Our users depend on us to deliver a secure and trustworthy experience, and we value this more than anything. We want to keep building on that trust, while also continuing to amaze our users with the tools they can build in Notion. This is where you come in — to help us forge a strong, reliable path forward to the future. The Notion application is flexible, powerful and always evolving. With a product that needs to scale to meet the needs of many thousands of businesses globally. They rely on us to protect their data and that of their customers. Notion is looking for security engineers that have a passion for securing complex products. As an Application Security Engineer working on AI Security you will be a consultant, advocate and builder that is hyper focused on preventing and eliminating security risk for Notion’s AI products. What You'll Achieve: Help define the security models for Notion’s products as they ship, giving guidance to engineering and product teams to ensure new features meet strict enterprise security requirements. Perform hands on testing and develop automated red teaming for AI and agentic features, especially focused on AI specific risks like prompt injection. Make the secure path the easy path for product teams by providing design guidance and finding architectural solutions that eliminate classes of vulnerabilities. Provide developers guidance and education on security and privacy best practices that prevent the authoring of vulnerabilities; leverage skills, MCP enabled tools, and hooks to help prevent vulnerabilities for developers using agentic coding tools. Participate in and drive mitigation strategies during AppSec related incident responses. Skills You'll Need to Bring: Security Architecture expertise: You have at least 6 years of experience working with product teams to design and/or build secure software. Thoughtful problem-solving: For you, problem-solving starts with a clear and accurate understanding of the context. You can decompose tricky problems and work towards a clean solution, by yourself or with teammates. You're comfortable asking for help when you get stuck. Impact-driven approach to technology: You use technology to drive measurable user and business outcomes, not as an end in itself. You stay current with tools like Cursor, Claude Code, and other AI-assisted development environments, and you’re pragmatic about choosing what delivers the most value. Pragmatic and business-oriented: You care about business impact and prioritize projects accordingly. As a product security expert you communicate and facilitate understand of the threat model and risks with the goal to balance the right security investments with the right bottom line outcomes. Empathetic communication: You communicate nuanced ideas clearly, whether you're explaining technical decisions in writing or brainstorming in real time. In disagreements, you engage thoughtfully with other perspectives and compromise when needed. Startup mentality: You are comfortable navigating the fast moving, unstructured nature of a hyper-growth startup. You are self-motivated to add value and bias towards action. You don’t need to be an AI expert, but you’re curious and willing to adopt AI tools to work smarter and deliver better results Nice to Haves: Experience building AI-enabled applications in production (LLMs and/or classical ML), including prompt tool orchestration, retrieval, evaluation, and iteration based on real-world feedback. Published reports of vulnerabilities you have found or AppSec related blog posts, especially anything AI related Participation in bug bounty programs or capture the flag exercises Involvement in local or regional security user groups or conferences We hire talented and passionate people from a variety of backgrounds because we want our global employee base to represent the wide diversity of our customers. If you’re excited about a role but your past experience doesn’t align perfectly with every bullet point listed in the job description, we still encourage you to apply. If you’re a builder at heart, share our company values, and enthusiastic about making software toolmaking ubiquitous, we want to hear from you. Notion is proud to be an equal opportunity employer. We do not discriminate in hiring or any employment decision based on race, color, religion, national origin, age, sex (including pregnancy, childbirth, or related medical conditions), marital status, ancestry, physical or mental disability, genetic information, veteran status, gender identity or expression, sexual orientation, or other applicable legally protected characteristic. Notion considers qualified applicants with criminal histories, consistent with applicable federal, state and local law. Notion is also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, please let your recruiter know. Notion is committed to providing highly competitive cash compensation, equity, and benefits. 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 and New York, the estimated base salary range for this role is $230,000 - $280,000 per year. For qualified candidates, Notion may consider a full-time remote candidate. By clicking “Submit Application”, I understand and agree that Notion and its affiliates and subsidiaries will collect and process my information in accordance with Notion’s Global Recruiting Privacy Policy . LI-Onsite

Keywords: Notion, Lodi , Application Security Engineer, AI Security, IT / Software / Systems , San Francisco, California