Typical phone screen with recruiter, then technical phone screen. On-site with 6 interviews (panel of 2 each), 1 was a lunch interview. The recruiter was responsive to emails, and scheduling was handled well. The interview questions were not especially difficult, BST, Graph problems, system design, etc. Do yourself a favor and read other people's experiences interviewing with this company. You might think you did well, but there's a good chance you will get rejected. They won't give any reason why, and I guess that makes sense. You most likely need to stand out compared to the standard answers that they hear, especially for a senior level role. The company values culture just as much as technical proficiency, so make sure that you fit that mold before applying as well.