Amazon Advertising Software Engineer interview: Two Sum and substring

The process began with an OA containing two DSA questions and behavioral questions. One was an easy Two Sum-style problem; the other was the medium problem of finding the longest substring without repeating characters. I then had one interview with two more easy-to-medium DSA questions.

The live round followed the same pattern: use familiar techniques cleanly under time pressure and explain the reasoning. There were no surprise twists, just common problem types and whether I could execute them.

I was selected and accepted an offer. I was relieved that the result did not feel like a lottery; fundamentals and steady execution seemed to drive it.

Location: Chennai. Overall feedback: positive. Offer status: got offer.