Klaviyo
Senior Security Engineer - Detection and Response
$142K–$212K
San Francisco, CA +3 · Senior · Full-time · Posted Mar 11, 2026
- Location
- San Francisco, CA
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 detection and response systems, develop detections and automation, and investigate security alerts and incidents.
What you'll do
- Build security observability systems and develop rule-based or ML-based detections as code.
- Automate detection and response workflows, including AI-first security systems.
- Respond to alerts and threats, lead incident investigations, conduct threat hunts, and participate in on-call rotations.
What they ask for
- 5+ years of experience in software, security, and/or data engineering.
- Experience with centralized logging, data lakes, and SIEM solutions.
- Programming proficiency for automation or building systems, such as Python or Go; experience with git/GitHub and CI/CD automations.
- Familiarity with threat actor tactics, techniques, and procedures; experience in detection and response or incident response on-call.
Nice to have
- Familiarity with large-scale data pipelines and data engineering techniques.
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.
Model-written summary · the original posting is authoritative