Klaviyo is looking for a security engineer to add to our growing Detection & Response Team. This is a hands-on technical role that involves detection engineering, attack path analysis, security orchestration and automation, and development of security tools to take our security program to the next level. As a security engineer, you will have the opportunity to identify attack paths (for our cloud, corporate and product environments), build detections-as-code leveraging our detection development pipeline, help implement machine techniques for threat detection, and execute on core detection and response engineering efforts. How you will make a difference: • Develop, test, and deploy high fidelity signature and anomaly (DS/ML) based detections • Conduct TTP-based threat models or attack path analysis to drive detection use cases • Detect threats leveraging solutions such as SIEM, data lake, and cloud platforms • Automate and codify detection and response processes and playbooks • Build threat detection systems, tools, integrations and automations • Configure and optimize detection and response technologies (e.g., SIEM, EDR, IDS/IPS) • Support with threat response efforts and conduct ad-hoc threat hunts • Support with log data onboarding into data lake and/or SIEM • Collaborate across teams (site, product, engineering, IT) to understand Klaviyo environments and drive threat detection use cases We’d love to hear from you if you have: • 3+ years of security experience in the modern cloud environments • Hands-on experience in detection engineering using SPL and/or SQL • Hands-on experience with SIEM and centralized logging (e.g., Splunk, Snowflake) • Strong coding skills to build/automate (e.g., Python, Go) • Experience with detection-as-code and/or securely deploying code via a CI/CD pipeline • Strong understanding of tactics, techniques, and procedures used by threat actors • Experience with threat modeling or attack path analysis to drive detection use cases • Knowledge of system fundamentals, OS internals, and file systems for Linux and MacOS • Knowledge of network security fundamentals and application in a cloud-first environment • Automation-first approach for detection and response work performed • Experience creating detections for Okta, Salesforce, Google Workspace a plus • Experience securing cloud environments such as AWS, GCP, and/or Azure • Team player with a strong, self-managing work ethic The pay range for this role is listed below. This role is eligible for benefits, including: medical, dental and vision coverage, health savings accounts, flexible spending accounts, 401(k), flexible paid time off and company-paid holidays and a culture of learning that includes a learning allowance and access to a professional coaching service for all employees. Base Pay Range For US Locations:$120,000—$180,000 USD We use Covey as part of our hiring and / or promotional process. For jobs or candidates in NYC, certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on April 3, 2025. Please see the independent bias audit report covering our use of Covey here
Job Type
Fulltime role
Skills required
Python, CI/CD, Azure
Location
Denver, Colorado
Salary
$120,000 - $180,000
Date Posted
May 22, 2025
Klaviyo is seeking a Security Engineer for their Detection & Response Team in Denver, Colorado. This hands-on role focuses on detection engineering, threat analysis, and the development of security tools.