Duolingo

1 round HR chat, 1 round pair coding. After I reviewed the question, it was actually not very difficult, but I was nervous in the interview. I finally worked out the result as expected but still failed in this round. Sad.

Very positive experience! Duolingo is a great company with a great team and atmosphere. The interviewers were very friendly and made me feel comfortable. Smiles and encouragement! After the onsite, they were somewhat unresponsive (had to send sever

The first round was a coding challenge. The questions were pretty hard, focusing on permutations and combinations, with lots of edge cases to be covered. There were three questions, and candidates had two hours to complete them. I could not complete