Senior Software Engineer - Profiles, Lists and Segments

Klaviyo(12 days ago)

HybridFull TimeSenior$148,000 - $222,000Engineering

About this role

A Senior Software Engineer on the Profiles, Lists and Segments (PLS) team at Klaviyo helps define and implement the core customer data experiences that enable customers to segment, target, and personalize audiences. The role contributes to scalable systems and intuitive workflows that support real-time profiles, lists, and segments and collaborates closely with cross-functional partners to shape product and technical direction. This position is central to Klaviyo’s personalization platform and product strategy.

View Original Listing

Required Skills

React
Redux
TypeScript
JavaScript
HTML
CSS
Python
Django
REST
GraphQL

+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.