Amigo's answer
Your AI interview companion
How to approach it
Tell it like a story: the problem, the constraints, the decisions you made and why, and the outcome. Go one level deeper than you think on technical choices — that's where interviewers probe.
Example answer
"I built a real-time fraud detection service for our payments platform. Transactions needed a decision in under 100 milliseconds, so I chose Kafka Streams with a local state store instead of calling a database per event. The trickiest part was handling late events, which I solved with a short grace window and a reconciliation job. We blocked €1.2M in fraud in the first quarter with a false positive rate under 0.5%."