Klaviyo
Senior Security Engineer - Detection & Response
$142K–$212K
Boston, MA +3 · Senior · Full-time · Posted Sep 10, 2026
- Location
- Boston, MA
Boston, Massachusetts, United States
Denver, Colorado, United States
San Francisco, California, United States - Experience
- 5+ years of hands-on security experience in modern cloud environments.
About the job
Build and operate detection and response systems, investigate security incidents, hunt threats, and automate security operations across enterprise, cloud, and product environments.
What you'll do
- Develop and deploy rule-based and anomaly-based detections, and improve detection pipelines and systems.
- Triage alerts, investigate and respond to incidents, perform digital forensics, and conduct threat hunts.
- Automate detection and response workflows and build security tooling, including AI-first systems.
What they ask for
- 5+ years of hands-on security experience in modern cloud environments.
- Experience triaging and responding to cyber threats, with large-scale log analysis, incident response and/or digital forensics.
- Experience with centralized security data lakes and SIEM solutions, and hands-on experience writing detections-as-code.
- Proficient in programming languages to automate/build; proven experience with git/GitHub and CI/CD automations.
Nice to have
- Familiarity with large-scale data pipelines and data engineering techniques.
- Experience in detection and response or incident response on-call.
Pay
$141,600–$212,400 USD base salary
Tools
SQL, Splunk, Python, Go, git/GitHub, CI/CD, SIEM
AI focus
Develop AI-first security systems to automate detection and response operations; use automation and AI in production at scale.
Model-written summary · the original posting is authoritative