Replit

Replit

AI Agent Security Architect

Foster City, CA · Senior · Full-time

Sponsorship not specifiedDetected 51 days ago
JavaScriptTypeScriptPythonGoReactVector DatabasesDockerMachine LearningLLMsRAGAgentic AICybersecurityIncident ResponseSalesFirewall

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Sponsors this role90
Entry-level history0
PERM / green-card track0
Lottery odds40
Fits your clock70

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About the role

  • We are looking for an AI Agent Security Architect to function as the primary technical authority for Replit's autonomous and AI agent security blueprint.
  • You will be a key technical contributor-leading high-impact AI security initiatives and bridging the gap between non-deterministic AI behavior and rigorous cybersecurity controls for both engineering and executive leadership.

Responsibilities

  • Agent Execution & Tool Sandboxing: Partner with Infrastructure and AppSec teams to design secure, short-lived, micro-isolated environments (e.g., microVMs, WebAssembly, container sandboxes) where agents can dynamically execute code, run shell commands, and interact with host operating systems safely.
  • Agentic Threat Modeling & Red Teaming: Conduct specialized threat modeling against non-deterministic systems. Lead automated and manual AI red-teaming initiatives to uncover vulnerabilities in RAG context pipelines, vector stores, and tool-calling interfaces.
  • Context & Memory Boundary Security: Design strict data isolation and poisoning prevention controls for vector databases, retrieval-augmented generation (RAG) pipelines, and long-term conversation memories across multi-tenant workloads.
  • Maintain the AI Security Source of Truth: Define, document, and maintain authoritative secure design patterns and SDKs for engineering teams building internal or customer-facing AI agent capabilities.
  • Contribution to Risk Register: Identify, quantify, and document non-deterministic and agentic security risks (e.g., OWASP Top 10 for LLMs & AI Agents, MITRE ATLAS), ensuring they are accurately represented in the Cybersecurity Risk Register.
  • Auditability & Observability: Design tamper-evident logging and telemetry standards for agent reasoning chains, tool execution history, and context assembly to support incident response, forensics, and GRC requirements.
  • Compliance & Sales Enablement: Partner with GRC to translate complex AI security controls into enterprise-ready audit documentation (e.g., ISO 42001, NIST AI RMF, EU AI Act readiness) and support Sales on complex enterprise security inquiries regarding AI safety.
  • Build Open-Source Apps https://replit.com/build/open-source-app-builder

Requirements

  • Required Skills & Experience
  • 6+ years of experience in security engineering or security architecture, with at least 2+ years dedicated specifically to AI/ML security, LLM application security, or securing agentic frameworks.
  • Proficiency in Python, Go, or TypeScript/JavaScript with a proven track record of reviewing code and building functional security tooling or guardrails.

Nice to have

  • Experience designing runtime sandboxing and isolation technologies (e.g., Firecracker, gVisor, Docker, WebAssembly) for dynamic code execution environments.
  • 💹 401(k) Program with a 4% match (US Only)
  • 🧑‍💻 Autonomous Work Environment
  • 🚀 Quarterly Team Gatherings
  • ☕ In Office Amenities (In-Office Only)
  • Self-driving Company https://replit.com/blog/self-driving-company
  • Replit Agent at Scale https://replit.com/blog/evaluating-and-improving-agent-at-scale
  • AI Adoption https://replit.com/blog/ai-adoption

Compensation

  • 💰 Competitive Salary & Equity

Company info

  • About the Role We are looking for an AI Agent Security Architect to function as the primary technical authority for Replit's autonomous and AI agent security blueprint.
  • Replit is the agentic software creation platform that enables anyone to build applications using natural language.
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This listing is sourced directly from Replit's careers page and normalized into a canonical job model.