Fidelity Investments Backend Engineer interview experience

The technical portion was very LeetCode-style, and the format leaned toward expecting you to solve problems while also handling a lot of detailed, nitpicky questions.

The part that really threw me off was the way the recruiter framed what they wanted from me around cryptography. The recruiter emphasized that I’d need to discuss cryptography in depth, but when I was in the later stages, it felt like that emphasis didn’t match what I actually had on my resume—so I spent a surprising amount of time feeling like I was being evaluated for experience I didn’t claim.

I also noticed that some of