Klaviyo is looking for a Senior Security Engineer to add to our growing Detection & Response Team. This is a hands-on role that involves responding to cyber threats and incidents, performing digital forensics and investigations, and automating threat response workflows. As a member of the team, you will have the opportunity to work on complex large-scale security challenges and collaborate with engineers across the enterprise to improve security posture of Klaviyo’s Corporate, Cloud and Product environments.

What you’ll be doing:

• Respond to alerts, cyber threats, and incidents
• Lead end-to-end incident response investigations
• Serve as the incident commander during security incidents
• Perform host and network based log analysis in a cloud first environment
• Develop and codify threat response processes and workflows
• Perform digital forensic investigations to include collection and analysis of evidence
• Build security tools to automate threat response tasks
• Develop detailed post incident and investigation reports
• Solution complex challenges and work on projects centered around security operations
• Collaborate with detection engineers to build and tune detections
• Conduct threat hunts across corporate, cloud and product environments
• Work with engineering stakeholders to improve security posture post investigations
• Coach and mentor junior team members within the detection & response team

We’d love to hear from you if you have:

• 6+ years of hands-on security operations experience in the modern cloud environments
• Experience in triaging and responding to cyber threats, alerts, and incidents
• Experience leading security incidents as primary responder or incident commander
• Experience in log analysis, incident response and/or digital forensics
• Experience with SIEM and centralized data lake logging (e.g., Splunk, Snowflake)
• Experience with automating SecOps workflows
• Experience securing cloud environments such as AWS, GCP, and/or Azure
• Proficient in programming languages to automate/build features (e.g., Python, Go)
• Understand techniques, tools and procedures used by threat actors
• Strong fundamentals of linux and macOS
• Automation-first approach for all work performed
• Strong oral and written communication skills
• Team player with a strong self-managing work ethic