Senior Security Engineer, AI Security

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Reddit, Inc.

Site WebLinkedInTous les Emplois

501 - 1000 employés

Fondée en 2005

💼 Conseil

📣 Marketing

📱 Médias

Consulting • Marketing • Media

Reddit, Inc. est une plateforme de médias sociaux qui fait office de hub pour des milliers de communautés, où les utilisateurs peuvent participer à des conversations variées, allant des dernières actualités aux centres d’intérêt les plus pointus. Elle permet aux utilisateurs de publier, de commenter et de voter sur des contenus, favorisant une communauté en ligne dynamique. Des millions de personnes à travers le monde se connectent et partagent leurs passions sur Reddit, créant un environnement propice à des interactions humaines authentiques.

Description

• Review and threat model AI-powered product features, LLM integrations, agentic workflows, MCP servers, tools, plugins, retrieval systems, model outputs, and internal AI tools before launch. • Build reusable AI security primitives such as guardrails, scanners, policy checks, tool-use controls, registries, sandboxes, libraries, and workflow-native enforcement points. • Design security tooling that can sit in the inference, retrieval, or execution path to detect and prevent prompt injection, jailbreaks, tool misuse, data leakage, unsafe code generation, and suspicious agent behavior. • Partner with teams building products and platforms with AI to define practical security controls that fit how they design, build, and ship. • Proactively find, fix, and prevent AI security issues, while making any required product or engineering changes clear and low-friction for partner teams. • Turn one-off AI security issues into systemic fixes, paved paths, measurable controls, and reusable guidance.

🎯 Exigences

• 5+ years of experience in product security, application security, software security, security engineering, backend engineering, or security platform engineering. • Strong application security fundamentals, including secure design review, threat modeling, code review, vulnerability prioritization, and practical remediation. • Experience in building reliable backend services. • Hands-on experience building security automation, developer tooling, libraries, infrastructure, or platform controls. • Familiarity with AI, LLM, or agentic system risks such as prompt injection, jailbreaks, insecure tool use, tool poisoning, data leakage, unsafe model outputs, and abuse of AI-assisted workflows. • Ability to reason across trust boundaries, including user input, model context, retrieval systems, backend services, tool calls, MCP servers, third-party integrations, sandboxed execution, logs, and frontend rendering. • Practical understanding of infrastructure security concepts such as identity, authorization, network boundaries, secrets, cloud environments, containers, isolation, runtime policy enforcement, and least privilege. • Strong engineering judgment about when to block launch, when to accept risk, and how to sequence practical remediations. • Clear communication skills with the ability to explain technical security risk and business impact to engineers, product managers, and leadership.

🏖️ Avantages

• medical, dental, and vision insurance • 401(k) program with employer match • generous time off for vacation • parental leave