The whole process is smooth, and very enjoyable.

First round is CodeSignal test, 70 - 120 mins to complete, questions are not hard but does require time to complete. 2 written questions regarding API and Database, and 2 practical coding tasks. No LeetCode.

After that, a recruiter would be in touch if you passed that, and talk abt the company and interview process.

Then it is 6 rounds of panel interview, everyone is super nice and knowledgable, and seems enjoying their job at Circle.

Out of 6 rounds, only 1 is coding, again on CodeSignal, but it is very practical, not LeetCode style.

3 rounds are system design, very standard. One of them will be a system you designed in the past.

2 rounds of behaviour, one with hiring manager and one with a VP, all very standard, like Amazon LP style.

I'm not going to share here out of my respect to Circle.