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Sr. Lead AI Engineer

Klaviyo - Boston, MA

Posted Mar 18, 2026

Benefits

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About this role

Sr. Lead AI Engineer Boston, MA At Klaviyo, we value the unique backgrounds, experiences and perspectives each Klaviyo (we call ourselves Klaviyos) brings to our workplace each and every day. We believe everyone deserves a fair shot at success and appreciate the experiences each person brings beyond the traditional job requirements. If you're a close but not exact match with the description, we hope you'll still consider applying. Want to learn more about life at Klaviyo? Visit klaviyo.com/careers to see how we empower creators to own their own destiny. Job Title: Sr. Lead AI Engineer Location: Boston, MA This role is based in our Boston, MA hub (Hybrid-3x week). About the Role At Klaviyo, we believe the future of software isn't just better productivity tools for humans-it's systems that can run, optimize, and adapt themselves based on outcome and reward signals. We've already built the infrastructure and applications that sit between businesses and consumers-serving 183,000+ customers, billions of consumer profiles, and hundreds of billions of messages and conversion events. Now we're investing heavily in Marketing AI and Service AI: the shared services and agentic capabilities that power AI‑native experiences across Klaviyo. As a Sr. Lead AI Engineer in the AI & Analytics organization, you'll be the technical leader for a set of high‑impact AI services and agentic systems. You'll own architecture and execution for complex, distributed backend systems; guide other engineers through design and implementation; and partner closely with product, machine learning, and data science to turn AI ideas into

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