Security Engineer - Detection & Response
Core
Hands-on detection and response engineer building systems to see, stop, and learn from threats across LangChain's production platform, cloud infrastructure, and agentic workloads.
Role type
Senior IC security detection and response engineer
Builds
Detection, investigation, and response systems; internal AI agents for security automation; telemetry pipelines
Domain
Cloud security, AI/LLM security, incident response
Deliverable
production ML models | product features
Required skills
Python or Go, cloud logging (GCP/AWS), Kubernetes telemetry, detection engineering, incident response, automation/API design, threat modeling
Preferred skills
AI agent development, adversarial testing, LLM security, infrastructure as code (Terraform/Helm), SOC 2/ISO 27001 experience
Technologies
Python, Go, TypeScript, GCP, AWS, Kubernetes, LangSmith, LangGraph
Responsibilities
Own the detection lifecycle from threat models to detections-as-code; build security monitoring and telemetry pipelines; engineer tools for threat hunting and incident containment; build internal AI agents to automate security workflows; lead incident response and postmortems; partner with Product Security to integrate threat models into production monitoring
Seniority
Senior, hands-on IC