OfferOnline Assessment

Amazon Advertising Software Engineer interview: Two Sum and substring

Amazon AdvertisingSoftware Engineer · Online Assessment · Jul 2026

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 r…

Shared by a candidate · reported Jul 2026. Interview formats change; use it as a guide, not a script.