Senior Detection and Response Engineer

Roblox Roblox · Consumer · San Mateo, CA · Software Engineering

Senior Security Engineer on the Detection and Response (D&R) team at Roblox, responsible for protecting users and platform infrastructure by engineering high-fidelity detections, building security data platforms, and responding to incidents. The role involves applying various techniques including rules, statistical modeling, traditional ML, and LLM agentic workflows to automate security alert processing and response.

What you'd actually do

  1. Engineer high-fidelity detections end-to-end from threat modeling through production quality alerts and actionable investigations, while keeping false positives low.
  2. Apply the right tool for the job (be it rules, statistical modeling, traditional ML, or LLM agentic workflows) to filter, triage, enrich, and auto-respond to security alerts when it meaningfully improves signal or speed.
  3. Develop customized security data pipelines and actively contribute to internal software and data platforms, collaborating across engineering teams.
  4. Author detections and onboard logs by partnering across teams to instrument their services, improve log schemas, and influence infrastructure roadmaps.
  5. Participate in an on-call rotation to keep detection and response services healthy.

Skills

Required

  • Detection Engineering
  • Golang
  • Python
  • Terraform
  • SQL
  • SIEM
  • EDR
  • NDR
  • SOAR
  • security data services
  • custom detection capabilities
  • production services
  • infrastructure as code
  • query languages
  • corporate endpoints
  • cloud environments
  • on-prem containers

Nice to have

  • Intellectually restless
  • collaborative builder
  • Pragmatic

What the JD emphasized

  • 5+ years of experience in Detection Engineering
  • built production services that are efficient, reliable, and scalable
  • on-boarded logs in your sleep
  • practical experience securing corporate endpoints, cloud environments and on-prem containers

Other signals

  • LLM agentic workflows
  • statistical modeling
  • traditional ML