Principal Engineer, Core InfrastructureActive$52K–$104K

The opportunity

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.

What you'll do

  • Architect and evolve the Kubernetes platform, service mesh, networking,: storage, and CI/CD pipelines; ship golden paths and IaC modules.

  • Define platform SLOs; use error budgets to guide reliability vs. velocity: trade‑offs; drive incident learning and readiness reviews.

  • Improve developer velocity (build/deploy times, flaky tests, local dev ergonomics) with measurable results.

  • Lead capacity planning and commitments; build guardrails for cost, security,: and compliance with Security/FinOps partners.

  • Write high‑impact code, automation, and tooling; mentor across teams and: raise the bar on operational excellence

  • Embed AI in the developer experience—from code generation to observability: and incident response—so teams ship faster and safer by default.

What they're looking for

  • Experience: 10+ years building and operating cloud platforms (compute,: networking, storage, runtimes like Kubernetes), with a track record of multi‑region HA and SLO rigor.
  • Technical expertise: Deep in Kubernetes, service mesh, Terraform/IaC, CI/CD, and production observability; you ship golden paths and guardrails that lift the whole org.
  • Experience with databases and storage systems, including SQL and NoSQL: databases, and object, block, or file storage platforms.
  • AI tools & automation: You’ve brought AI into platform engineering—from copilot‑assisted workflows and intelligent test generation to AIOps for incident triage, anomaly detection, and runbook automation—with clear security and cost boundaries.