R
$190,800 – $267,100
Listed on Reddit’s own careers site. You apply with them directly — we never stand between you and the employer.
What this role is
Reddit is seeking a Senior Security Engineer to secure AI-powered products and internal AI tooling by reviewing designs, threat modeling LLM systems, and building reusable security controls that scale across teams. This role suits engineers with strong application security fundamentals and hands-on platform-building experience who want to embed security into AI workflows before launch.
Our summary, not Reddit’s wording. The full posting is on their site.
Skills this role names
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What they ask for
Required
- 5+ years 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, and vulnerability prioritization
- Experience building reliable backend services
- Hands-on experience building security automation, developer tooling, libraries, infrastructure, or platform controls
- Understanding of AI and LLM risks such as prompt injection, jailbreaks, insecure tool use, and data leakage
- Ability to reason across trust boundaries including user input, model context, retrieval systems, backend services, and tool calls
- Practical understanding of infrastructure security concepts such as identity, authorization, network boundaries, secrets, and least privilege
- Strong engineering judgment about blocking launches and sequencing remediations
- Clear communication skills with technical and non-technical stakeholders
Nice to have
- Experience securing AI/LLM products, AI-assisted development tooling, or agent frameworks
- Experience building guardrails, policy engines, secure frameworks, scanners, or developer-facing security platforms
- Familiarity with agent sandboxing, workload identity, network policy, or AI red teaming
- Experience scanning or governing AI agent components such as skills, prompts, or tool manifests
- Familiarity with machine learning systems, model evaluation, or data governance
- Experience with Go, Python, JavaScript, or TypeScript
- Experience partnering with privacy, trust and safety, or infrastructure teams
- Hands-on experience securing distributed systems, Kubernetes, APIs, or microservices
- Track record of mentoring engineers or raising security bar through tooling