Principal Engineer, Core Infrastructure

Klaviyo(26 days ago)

HybridFull TimeSenior$248,000 - $372,000Platform Engineering

About this role

A hands-on principal platform engineer at Klaviyo who shapes the service platform that enables engineering teams to ship fast and safely. This individual contributor role leads through design, code, and incident excellence, defining technical standards, reliability targets, and organizational operational practices. The position partners across security, FinOps, and other teams to balance velocity, cost, and compliance while improving developer experience and reliability.

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Required Skills

Kubernetes
Service Mesh
Networking
Storage
CI/CD
Observability
IaC
Terraform
SLOs
Incident Response

+10 more

About Klaviyo

klaviyo.com

Klaviyo is a B2C CRM and marketing automation platform that unifies AI-powered email and SMS to help ecommerce brands drive growth and retention. It uses customer data, advanced segmentation, and automation flows to deliver personalized, omnichannel experiences across email, SMS, WhatsApp, and more — including AI-driven capabilities via K:AI Agents. Klaviyo emphasizes measurable results with analytics, testing, and integrations with major ecommerce platforms to boost revenue and lifetime value. Companies use it to build targeted lifecycle campaigns, personalized messaging, and data-driven retention strategies at scale.