A very pleasant experience. A recruiter will keep in touch with you between interviews and provide tips and notes on what to prepare for and what topics to focus on.

I was rejected, and in the feedback, they mentioned that one of the requirements was the ability to deliver production-ready code quickly and under pressure, which makes me think I actually dodged a bullet.

A 3 (probably more) part question:

1. Implement a load balancer in Java that can register services.
2. Add a random service selection algorithm.
3. Add a round-robin selection algorithm. Everything should be tested.

Implement a concurrency-friendly money transfer service in Java (no tests).

What are the levels of transaction isolation in databases? How do they behave in a highly concurrent environment?