Mastercard·Software Engineer

Mastercard Software Engineer interview experience

No offer

Medium

Positive

Dublin, DublinPosted Dec 2025 · Candidate report, summarized by Dataford

The main thing I remember is that the technical questioning focused heavily on distributed systems instead of traditional coding.

They asked me about concepts like embedded cache and external cache, and then we went deeper into related infrastructure ideas such as CDN and tools like Redis. The conversation stayed concept-driven, and there were no coding questions at all.

It was an interview that felt like it tested whether I understood how components work in a real environment—how caching shows up in practice and what tradeoffs come with it. I came away feeling like I was assessed on systems thinking more than implementation. Unfortunately, I didn’t get an offer, but the experience was still clear about what they were

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