Give an introduction and talk about your research interests. Then they ask about one project. You must know in and out about the project. About 45 minutes there will be discussion on the project followed by question on probability and linear algebra. They may ask DSA.

I reached out to the research scientist and talk about my projects that align with him. Then we set up a call to further discuss about it. Then he set up an official meeting with other scientist in the team to discuss more about the alignment between company and my project.