Phone interview - fine and standard Zoom interview with technical questions focused on statistics and probability - the interviewer was less than enthused to be there and/or he had the classic New England sullenness. Friendly when pointing out mistakes and things I could have done better with the coding and probability questions. When I emailed Klaviyo two days after that Zoom interview that I had gotten an offer that I needed to respond to and double checking that they were not planning on making me an offer or request a 3rd+ interview by the other company's deadline I didn't get a response.