Senior Software Engineer - Growth is open at Klaviyo in Boston. The posting gives no salary; similar roles in the United States advertise a median of $193K. Posted on Apr 10, 2026, and still on Klaviyo’s careers page when we last checked, on Nov 14, 2026.
About the role
, you will drive the technical design and lead the implementation of high-impact user-experience improvements across the Klaviyo product, focusing on areas critical to new customer success and adoption. You will own the entire project lifecycle, working through ambiguity and requirements refinement to execution and delivery. - You will own the end-to-end experimentation process, including contributing to the…
The opening lines of the posting. The rest is on Klaviyo’s careers page.
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