Senior AI Security Engineer - Secure AI Systems

Neura Market; Northern (KY); Hybrid; USD 191,000 - 267,000; Full time

Benefits offered by this job

Equity options

Healthcare benefits

401(k) match

Generous PTO

Parental leave

Job summary

Reddit is hiring a Senior Security Engineer, AI Security to secure AI-powered products and workflows. You will review designs, threat model AI systems, and build reusable security primitives.

The role emphasizes practical security judgment, building guardrails, and partnering with product teams to secure inference, retrieval, and execution paths across AI products. Remote-friendly, US-wide roles with base salary transparency.

Qualifications

• 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.

Responsibilities

• 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.

Skills

Security engineering

Threat modeling

Secure design review

Backend services

Security automation

Communicating risk

AI security

Tools

Kubernetes

Go

Python

JavaScript/TypeScript

Job description

Reddit is hiring a Senior Security Engineer, AI Security to secure AI-powered products and workflows. You will review designs, threat model AI systems, and build reusable security primitives.

The role emphasizes practical security judgment, building guardrails, and partnering with product teams to secure inference, retrieval, and execution paths across AI products. Remote-friendly, US-wide roles with base salary transparency.