Klaviyo
Senior Security Engineer - Detection & Response
$142K–$212K
San Francisco, CA +3 · Senior · Full-time · Posted Sep 10, 2026
- Location
- San Francisco, CA
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 capabilities across enterprise, cloud, and product environments, including investigations, threat hunting, automation, and AI-enabled security systems.
What you'll do
- Develop and deploy detections-as-code; investigate alerts and respond to incidents, including digital forensics and threat hunting.
- Build and maintain security tooling, workflows, pipelines, and systems that automate detection and response.
- Support security data lake and SIEM workflows, collaborate with Threat Intelligence, and mentor engineers.
What they ask for
- 5+ years of hands-on security experience in modern cloud environments.
- Experience triaging and responding to cyber threats, and 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 programming skills for automation or building, plus 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 on 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
AI focus
Develop AI-first security systems to automate detection and response operations; the role also uses automation and AI in production at scale.
Model-written summary · the original posting is authoritative