I applied online. I interviewed at Klaviyo (Boston, MA) in Oct 2025
Interview
The interview was 3.5 hours long with 3 rounds and 15 minute breaks in between each round. The first round was a debugging challenge, the second round was a web app challenge, and the third round was behavioral.
Interview questions [1]
Question 1
for the debugging round, they asked a lot of optimization questions about the codebase, like how would we make this more efficient
