Senior Security Engineer - Detection and Response

Role Overview

Klaviyo is looking for a Senior Security Engineer to add to our growing Detection and Response (D&R) Team. This is a hands-on technical role that involves building and maintaining secure, reliable, and scalable detection and response systems to enhance our security observability capabilities.

What You Will Do

Build systems that facilitate security observability for detection and response, develop AI-first security systems to automate detection and response operations, onboard, normalize and optimize security logging data for large-scale data analysis, and respond to security alerts, cyber threats, and security incidents.

Why It Might Be a Fit

We’d love to hear from you if you have 5+ years of experience in software, security, and/or data engineering, an automation-first and AI-first approach, experience with centralized logging, data lakes, and SIEM solutions, and a strong passion for continuous learning and staying updated on evolving technology.

Requirements

• 5+ years of experience in software, security, and/or data engineering
• Automation-first and AI-first approach for all work performed
• Experience with centralized logging, data lakes, and SIEM solutions
• Familiarity with large-scale data pipelines and data engineering techniques
• Proficient in programming languages to automate / build (e.g., Python, Go or similar)
• Proven experience with git/GitHub and CI/CD automations
• Familiarity with tactics, techniques, and procedures used by threat actors
• Experience being part of detection and response or incident response on-call
• Strong oral and written communication skills
• Team player with a strong, self-managing work ethic

Benefits

• Comprehensive range of health, welfare, and wellbeing benefits
• Annual cash bonus plan
• Variable compensation (OTE) for sales and customer success roles
• Equity
• Sign-on payments