Why Most Engineers Fail System Design Interviews (Even When They're Great Engineers)

A few months ago, I was doing a mock interview with an engineer who had more than seven years of experience.

Technically, he was excellent.

Within two minutes of hearing the question, he had already drawn:

• Redis

• Kafka

• Cassandra

• Kubernetes

• CDN

• Load Balancers

Honestly, the architecture looked good BUT

The only problem?

He never asked what problem he was solving.

I se…