Design a service that manages a set of Kubernetes clusters.

"I got into the process through a referral-like word-of-mouth path after targeting the role myself, and the loop ended up being three stages: a hiring-manager chat, a practical live technical screen, and then a six-interview onsite spread across multiple days because of reschedules. The early rounds felt surprisingly grounded in the real job because I was talking to people from the actual org, not random interviewers from somewhere else in the company. The first technical screen was simple on purpose, just parsing and filtering JSON and then talking through how I'd scale it. The onsite was where the difficulty really jumped, especially the Go-by-hand coding rounds and the AI system design round that caught me off guard. I ended up getting a pretty cold no with almost no feedback beyond that the team didn't find an exact match, which was rough after that much time."