It was an online two-day interview process, presenting yourself and meeting the team. The team was nice. The questions were not too much into detail, no technical tests, just generally trying to figure out which projects you accomplished and so on.
May be the questions were sometimes a bit more focused on the expertise of the people who were interviewing, instead of focusing on the expertise/strong points of the candidate and what he could bring to the team.
Even though the initial process was very fast, afterwards it really stagnated for several months, at which point it was clear that they did not choose me as a candidate. First reminder e-mail to HR (after couple of weeks past the timeline they promised for a follow-up) promised to give a decision with some delay, which was totally okay and understandable. But after few months of no reply, only automatic reject email was sent, explaining it like there are too many candidates to provide with a personal feedback. I can understand such response at initial stages, when I didn't need to prepare a separate presentation about myself and spend two days on online calls. I don't have any hard feelings about the reject itself, but I think such an attitude doesn't motivate reapplying to Siemens Healthineers again. I doubt your team can afford spending two days on that many candidates, that your HR can not find 5 mins to send a decent e-mail. It certainly leaves with some questions about the atmosphere in such a company and if it was such a big loss.