Applied through a referral.

First, I had a phone interview with HR, lasting about 20 minutes. They asked some basic questions about my background and past experience.

Next, they asked questions to test my knowledge of the company. They also inquired about my salary expectations.

After the interview, they arranged to send me a test challenge that I had to complete within the next seven days.

Once you start the online test, you have 75 minutes to complete it. You need to write four algorithms and pass the automated tests. You don't have a lot of time.

It's important to be sharp with "boilerplate" coding, such as file reading and string manipulation, so you don't waste time on them and can dedicate the most time possible to thinking about the algorithms.

The test didn't go well, so they called to inform me that they wouldn't proceed with the technical interview. However, they mentioned that I could practice and re-apply if I wished.

Do you know what A/B testing is?