Senior Software Engineer - Flows Platform

Klaviyo

1 month ago

3.3 on Glassdoor

Remote

Full Time

Senior

0 applicants

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About this role

A Senior Software Engineer on Klaviyo’s Flows Platform will design and operate the core automation engine that powers automated lifecycle programs. The role focuses on building high-scale backend systems that process billions of events and ensure reliable, timely message delivery for customers. You will contribute to technical decisions and deliver well-tested, performant solutions to support large-scale orchestration and scheduling.

Skills

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.