Mastercard Software Engineer interview experience

After a recruiter-style online assessment on HirePro that lasted about 60 minutes, I answered two coding problems. One was a virus containment grid challenge that felt like the “contain virus” style: model spread, decide what to quarantine, and compute the minimum number of infected walls. The other was a trie-focused problem where the task involved permuting each string and then working out the minimum number of trie nodes needed.

A week or so later I joined a group discussion with about 11 people. The prompt pushed on an AI theme—how tools might replace aspects of engineering work—and the