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Senior Security Engineer, Detection & Response

Flexport
Posted a month ago

LOCATION

U.S. · Remote

EXPERIENCE

5 - 8 Years

SALARY

$138.2K - $252K /year

SKILLS REQUIRED

ObservabilityIncident ResponseThreat ModelingSecurity TestingThreat HuntingTelemetry Requirements

Job description

Overview

Senior Security Engineer for Detection & Response, owning detections end to end—from writing and tuning detections to incident response and automation.

What you'll do

  • Write and tune detections across endpoint, identity, SaaS, and cloud.
  • Track detection quality using coverage against MITRE ATT&CK, precision, and time-to-detect.
  • Own incident response activities: triage, contain, remediate, and write retrospectives.
  • Build investigation automation to reduce toil.
  • Define telemetry requirements for new systems before they ship.
  • Conduct proactive threat hunting, turning hypotheses into detections or coverage documentation.

What you'll need

  • Typically 5–8 years of experience in detection engineering, incident response, or threat hunting.
  • Experience writing and tuning detections with hands-on work.
  • Proficiency in at least one programming language (Python, Go, or similar).
  • Comfort writing production-grade detection and automation code.
  • Experience with a modern SIEM or detection pipeline (Panther, Elastic, Splunk, or similar).
  • Practical incident response experience leading or playing a major role in real incident triage and closure.

Nice to have

  • Experience treating detections as code with CI/CD, peer review, and staged rollout.
  • Experience defining telemetry contracts before systems ship.
  • Ability to critically evaluate and verify AI-assisted work.
  • Familiarity with cloud-native and Kubernetes telemetry.
  • Experience with fraud or financial-crime detection patterns.

Details

  • Location: U.S. Remote.

Read the full description and apply on the company’s own careers page.

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Senior Security Engineer, Detection & Response