Senior Software Engineer - New Product

Klaviyo(1 month ago)

RemoteFull TimeSenior$152,000 - $228,000Engineering

About this role

A Senior Full Stack Engineer at Klaviyo will lead key initiatives on the New Products team to enhance and scale the company’s product offerings. The role focuses on shaping product outcomes, delivering well-designed and reliable solutions, and contributing to Klaviyo’s ambitious innovation efforts. Team members are expected to take radical ownership, collaborate across disciplines, and help define the company’s future through experimentation and executional excellence.

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Required Skills

Full Stack
Front End
Back End
System Design
Project Leadership
Mentoring
Code Reviews
Testing
Agile
AI Integration

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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.