Senior Software Engineer, Infrastructure Security

Klaviyo(14 hours ago)

HybridFull TimeSenior$101,200 - $151,800Infrastructure Security

About this role

A Senior Software Engineer on Klaviyo’s Infrastructure Security team focused on building foundational internal platforms and services that enable secure, scalable engineering across the company. The role supports global-scale systems and contributes to platform reliability, availability, and operational excellence for both engineers and customers. It is based in Dublin and follows a hybrid work model.

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Required Skills

Linux
Computer Networking
Python
Golang
Django
FastAPI
AWS
Terraform
Kubernetes
MySQL

+6 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.