Senior Security Engineer - AI-Driven Detection & Response

Klaviyo; Denver (CO); On-site; USD 142,000 - 212,000; Full time

Job summary

Klaviyo is seeking a Senior Security Engineer to join the Detection & Response team. This role covers the full detection and response lifecycle, including building detections as code, triaging alerts, leading investigations, and automating security workflows across enterprise, cloud, and product environments.

You will work with engineers across regions to shape an engineering-first D&R function that leverages automation and AI at scale.

Qualifications

• 5+ years of hands-on security experience in modern cloud environments.
• Experience in triaging and responding to cyber threats.
• Experience in large-scale log analysis, incident response and/or digital forensics.

Responsibilities

• Develop, test, and deploy high-fidelity detections-as-code across environments.
• Detect and respond to cyber threats using security data lakes, SIEM, and cloud platforms.
• Lead end-to-end incident response investigations and threat hunts.
• Perform digital forensic investigations including evidence collection and analysis.
• Automate and codify detection and response workflows and processes.
• Build security tooling to drive automation across D&R lifecycle.
• Improve and maintain detection and response pipelines and underlying systems.
• Collaborate with Threat Intelligence to identify sophisticated threats.
• Develop AI-first security systems to automate detection and response operations.
• Support data engineering workflows for security data lake and SIEM."
• Be an active member of D&R on-call rotations.
• Coach and mentor security engineers in the team.

Skills

Security engineering

Incident response

Threat hunting

Digital forensics

Detections-as-code

SQL

Splunk

Python

Go

Git/GitHub

CI/CD

Threat intelligence

On-call experience

Communication skills

Tools

SIEM

Cloud platforms

Job description

Klaviyo is seeking a Senior Security Engineer to join the Detection & Response team. This role covers the full detection and response lifecycle, including building detections as code, triaging alerts, leading investigations, and automating security workflows across enterprise, cloud, and product environments.

You will work with engineers across regions to shape an engineering-first D&R function that leverages automation and AI at scale.