Senior Software Engineer - Flows AI

in full-stack software engineering.

Have a track record of building and maintaining high-scale, customer-facing product features.

Bring experience shipping AI-powered product capabilities or other complex, ambiguous product initiatives in production.

Experience creating human and automated evals to ensure high AI model quality.

Hands-on experience with one or more front end technologies (React, TypeScript, Angular, Vue, etc.)

Experience with Python / Django or similarly typed languages.

At Klaviyo, we believe the future of software lies not in productivity tools for human users but in software that can run and optimize itself based on outcome or reward metrics.

We’ve built the infrastructure and application that serve as the interface between businesses and consumers.

We now have over 167,000 customers, billions of consumer profiles, and hundreds of billions of customer messages and follow-on conversion data.

We have a big opportunity to build state-of-the-art AI and machine learning technologies at Klaviyo to power our products and develop AI agents that can automatically create and execute marketing or customer experiences, strategies, and campaigns for any business.

Software Engineer to join Flows AI.

You’ll help build the backend systems and product experiences behind our AI agent capabilities in Klaviyo’s Flows product.