The interview process began with an HR screening where we talked about my background and interest in the role. After that, I had a short screening call with the team leader to go over technical fit and expectations. Finally, I had a technical interview where I was asked to write several Python functions and connect them into a complete end-to-end process.

Pretty lenient - non leet code style. Just conceptuals and resume heavy. If you know what you have done in the past well you will be ok and that is about it.