Klaviyo
Senior Security Engineer - Detection and Response
$142K–$212K
Denver, CO +3 · Senior · Full-time · Posted Mar 10, 2026
- Location
- Denver, CO
Boston, Massachusetts, United States
Denver, Colorado, United States
San Francisco, California, United States - Experience
- 5+ years in software, security, and/or data engineering.
About the job
Build and maintain scalable security observability, detection, and response systems, and participate in threat response and incident investigations.
What you'll do
- Build security observability systems and develop rule-based or ML-based detections as code.
- Respond to alerts and incidents, conduct investigations and threat hunts, and participate in on-call rotations.
- Automate detection and response workflows, including onboarding and optimizing security logging data.
What they ask for
- 5+ years of experience in software, security, and/or data engineering.
- Experience with centralized logging, data lakes, and SIEM solutions.
- Proficiency in programming languages such as Python, Go, or similar.
- Experience with git/GitHub and CI/CD automations.
Nice to have
- Familiarity with large-scale data pipelines and data engineering techniques.
- Familiarity with threat actor tactics, techniques, and procedures; experience in detection and response or incident response on-call.
Pay
$141,600 — $212,400 USD (base salary)
Tools
Python, Go, git/GitHub, CI/CD, SIEM
AI focus
Develop AI-first security systems to automate detection and response operations, including deployment of ML models and ML-based detections.
Model-written summary · the original posting is authoritative