Should I send a thank you note after the interview?

It is not necessary to write a thank you letter after every interview. If your performance in the interview is relatively good, and the position you are applying for is highly competitive, the company is relatively formal, and you like it very much, you can write a polite and concise thank you letter and send it within one or two days after the interview. . Note: Correctly "calling out" the interviewer's name and title may earn you points, but not doing so would be very rude.