American Express Software Engineer interview experience

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Posted Feb 2025 · Candidate report, summarized by Dataford

I went through a multi-round process that felt like a tight loop of engineering and product-y problem solving.

At the start, I did a round that combined a coding exercise with React carousel-style machine coding. Then I moved into another round that tested knowledge of Java streams and functional interfaces, plus JavaScript topics like promises and deep cloning.

The final technical part had a system design angle tied to payments, where I handled high-level design along with behavioral discussion. Across the overall loop, the pattern was pretty consistent: DSA and machine coding first, then more focused Java/JS/React engineering, and then a techno-managerial stage that included frontend/full-stack

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