Senior Software Engineer - Profiles, Lists and Segments is open at Klaviyo in Boston. The posting gives no salary; similar roles in the United States advertise a median of $193K. Posted on Jan 22, 2026, and still on Klaviyo’s careers page when we last checked, on Nov 14, 2026.
About the role
Why You Should Join the PLS (Profiles, Lists and Segments) Team: The PLS team is responsible for building and scaling the core customer data experiences at Klaviyo — profiles, lists, and real-time segments. We own the tools that let customers understand who their users are, group them into meaningful audiences, and keep those audiences up to date as new data flows in. Our work underpins how customers target…
The opening lines of the posting. The rest is on Klaviyo’s careers page.
Hiring at Klaviyo
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