Senior Software Engineer (Mobile Developer) - Mobile App Growth

Klaviyo(13 days ago)

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

About this role

A Senior Software Engineer on Klaviyo’s Mobile App Growth team focused on expanding the company’s mobile product and SDK offerings across iOS and React Native platforms. The role contributes to Klaviyo’s shift from primarily email marketing to broader mobile engagement by working on mobile-first features and cross-platform integrations, collaborating with product and engineering teams across locations.

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Required Skills

iOS
React Native
Swift
Python
Django
AWS
Go
Kotlin
React
TypeScript

+7 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.