Lead Security Engineer
KlaviyoDenver, Colorado, United States
Posted October 24, 2025
220000 - 330000 USD year
Full Time
About the Company
Klaviyo is a CRM platform specialized for B2C brands, offering integrated marketing automation, analytics, and customer service. Its built-in data platform and AI insights enable businesses to deliver personalized 1:1 experiences at scale, enhancing efficiency and driving revenue. Distinctive in its unified solution, Klaviyo serves over 167,000 brands including Mattel and Glossier.
Job Description
Klaviyo is seeking a Lead Security Engineer to strengthen the security posture across their technology environment. This role focuses on security architecture development, threat modeling, and ensuring secure-by-default infrastructure. The company values diversity, growth, and a collaborative environment, and offers opportunities to develop specialized skills in cloud security, identity and access management, or data protection. They are excited to have new perspectives and experiences.
Requirements
- 5+ years of experience in infrastructure or security engineering roles
- Deep knowledge in one or more security focus areas (e.g., cloud security, IAM, endpoint security, data protection, detection engineering, compliance)
- Comfortable navigating ambiguity and defining priorities in a broad-scoped role
- Experience working in modern cloud environments such as AWS, GCP, or Azure
Benefits
- Comprehensive health, welfare, and wellbeing benefits