✦ Luna Orbit — Cybersecurity

Senior / Lead Security Engineer, Cloud Infrastructure

at Klaviyo

📍 Denver, CO Onsite Posted March 12, 2026
Type Full-Time
Experience lead
Exp. Years 5+ years
Education Not specified
Category Cybersecurity

This role involves leading security efforts to protect Klaviyo’s cloud infrastructure across Denver, focusing on security architecture, automation, and threat mitigation.

  • Securing cloud infrastructure
  • Implementing security controls
  • Leading threat assessments
  • Automating security processes
  • Collaborating with engineering teams

The technical environment includes cloud security, IAM, infrastructure-as-code tools, threat modeling, vulnerability management, and multi-cloud platforms.

The ideal candidate is a senior security engineer with over 5 years of experience in cloud security, IAM, and infrastructure security. They excel in threat modeling, vulnerability management, and infrastructure-as-code, with a focus on securing cloud environments across multiple platforms.

5+ years of experience in infrastructure or security engineeringExperience with cloud securityExperience with IAMExperience with infrastructure-as-code toolsProficient in secure systems designThreat modelingVulnerability management
AI security solutionsSecurity architecturesSecurity controls implementationCross-functional collaboration
TerraformCloudFormationPulumiAWSGoogle Cloud PlatformMicrosoft Azure
Cloud securityIAMData protectionSecure systems designThreat modelingVulnerability managementInfrastructure-as-codeTerraformCloudFormationPulumiAWSGCPAzure
Cloud securityIdentity and Access ManagementIAMData protectionSecure systems designThreat modelingVulnerability managementInfrastructure-as-codeTerraformCloudFormationPulumiAWSGCPAzureSecurity architecturesAI security solutions
CollaborationMentoringProblem-solvingCommunicationLeadershipAdaptability
Industry SaaS
Job Function Cloud security and infrastructure security leadership
Security EngineerCloud securityIAMIdentity and Access ManagementData protectionSecure systems designThreat modelingVulnerability managementInfrastructure-as-codeTerraformCloudFormationPulumiAWSGCPAzureSecurity architecturesAI security solutions

Lack of experience with cloud security or infrastructure-as-code tools, No experience with threat modeling or vulnerability management, Less than 5 years of relevant experience

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