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Klaviyo

Marketing Services

San Francisco, CA Apply Now Practice This Interview

Senior / Lead Security Engineer, Cloud Infrastructure at Klaviyo

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Description

At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day.

We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements.

If you’re a close but not exact match with the description, we hope you’ll still consider applying.

Want to learn more about life at Klaviyo? Visit klaviyo.com/careers to see how we empower creators to own their own destiny.

As a Lead Security Engineer, you’ll be a vital part of the Infrastructure Security Team, focusing on strengthening the security posture across Klaviyo’s entire technology environment, developing security architectures and repeatable patterns and mentoring colleagues and junior security engineers.

Unlike roles with a narrowly defined specialty, this position offers the opportunity to demonstrate your unique expertise—whether that’s in cloud security, identity and access management, data protection, secure systems design, or other security domains.

Your work will involve evaluating and hardening our infrastructure, collaborating with cross-functional teams, and leveraging AI to build scalable solutions to address emerging threats.

We are looking for someone who is excited to bring their specialized skills to the team, shaping Klaviyo’s security practices and helping us continue to raise the bar.

  • Role: Senior / Lead Security Engineer, Cloud Infrastructure
  • Company: Klaviyo
  • Location: San Francisco, CA
  • Job found on: 9th of March, 2026
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