Staff Product Security Engineer

Sequoia Capital Global Equities is seeking a Staff Product Security Engineer at Reddit, a leading platform for authentic online conversations. The role focuses on designing and implementing secure frameworks and controls to enhance product security, particularly in the context of AI-assisted development.

Responsibilities:

• Build and evolve secure frameworks, guardrails, and library-level controls that make common vulnerability classes harder to introduce
• Design security controls for AI-assisted development — including reusable rule packs and skills that shape how engineers and coding agents generate, review, and ship code
• Embed security into the workflows engineers already use
• Drive product security reviews for new launches and major architectural changes
• Identify and eliminate systemic security debt
• Shape strategy, influence architecture, and drive execution across teams

Requirements:

• 8+ years of experience in software engineering, product security, or application security, with at least 2 years operating at a staff level of scope and impact
• Proficiency in one or more languages (Go, Python, JS/TS)
• Experience designing, building, and operating production-quality systems and developer-facing platforms
• Experience building secure frameworks, libraries, or guardrails that improve security across many teams at once
• Demonstrated ability to integrate security into developer workflows: CI/CD, code review, release processes, and internal platforms
• Clear communicator who can explain technical detail and business impact to both engineers and leadership
• Comfortable in fast-moving environments where AI-assisted development is reshaping how software is built and reviewed
• Experience with vulnerability discovery and remediation pipelines, including bug bounty or researcher-reported findings
• Track record of mentoring engineers and raising the technical bar across a security or platform engineering org
• Experience securing AI/LLM systems, agentic workflows, or AI-assisted development tooling
• Familiarity with authentication/authorization systems, cloud-native platforms, and how to secure them