Security Engineer / Research Engineer

Factory AI | AI, Fullstack, Frontend, Platform, Data, Product Engineers + GTM, Design, Operations | San Francisco, CA (+ NY, London for some roles) | ONSITE | Full-time | https://factory.ai At Factory we build Droids, autonomous software development agents that review PRs, implement features, run tests, fix incidents, and handle migrations for enterprise engineering teams. Droid is model agnostic and surface agnostic, and works across your CLI, IDE, Web/Desktop app, CI/CD, Slack, and Linear. Customers include Nvidia, Adobe, Adyen, Klarna, and Ernst & Young. We raised a $150M Series C at a $1.5B valuation, backed by Khosla Ventures, Sequoia, Blackstone, Insight Partners, NEA, and NVIDIA. We're hiring across the stack: - AI Engineer: agentic systems, LLM integrations, evals - Fullstack Engineer: platform, APIs, auth, billing, terminal UIs - Frontend Engineer: web and desktop apps (React, TypeScript, Electron) - Platform Engineer: infrastructure, sandboxing, CI/CD, cloud - Product Engineer: end-to-end feature ownership - Data Engineer: pipelines, analytics, telemetry at scale - Security Engineer / Research Engineer Stack: TypeScript, React, Node.js/Bun, Python, GCP/AWS, Firestore, Electron. We're also hiring in these roles: Enterprise & Mid-Market AEs, Solutions Engineers, Forward Deployed Engineers, Product Marketing, Product Manager, Product Designer, Partnerships, and Operations (RevOps, BizOps, People Ops, Recruiting). Some roles available in NYC and London. In-office 5 days a week in SF (walking distance to Caltrain). Catered lunch and dinner, full medical/dental/vision, 401(k). If you have strong opinions about how AI should actually work for production engineering systems at enterprise scale: we want to talk. Apply: https://factory.ai/careers