GrepJob
Klaviyo

Principal Engineer, Security

Klaviyo
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about 2 hours ago
Boston, MA, USAStaff+
H1B Sponsor

Base Salary

$244k - $366k/yr

Responsibilities

  • Define and own Klaviyo's infrastructure security architecture.
  • Build and maintain security guardrails as IaC modules.
  • Own the vulnerability management program.
  • Define the security SLO and compliance framework for production infrastructure.
  • Author security ADRs and RFCs.
  • Lead threat modeling and security design reviews.
  • Partner with SRE, AppSec, and FinOps on cross-cutting initiatives.
  • Write high-impact code, automation, and tooling.
  • Transform workflows by integrating AI into security processes.

Requirements

  • 10+ years in infrastructure or platform security engineering.
  • Deep knowledge of cloud infrastructure security (AWS/GCP IAM, service mesh mTLS).
  • Experience defining security SLOs and tracking vulnerabilities.
  • Developer-centric mindset focused on building user-friendly tools.
  • Ability to influence cross-organizational teams through technical expertise.
  • Experience writing runbooks and leading security incident responses.
  • Strong communication skills for translating technical risks to business stakeholders.
  • Experience with AI tools and automation in security engineering.