Started with a 30-minute phone interview with a Philips recruiter where we discussed my qualifications and job details at a high level.
Several days later I had a 30-minute phone interview with the hiring manager for the position where we discussed my experiences, the open position, and the workplace in better detail.
About a week later I was brought in for an in-person interview that lasted 4 hours and consisted of 4 separate interviews, each with 1-2 people present. Questions were about details on my resume, why I was looking for a new job in a new industry, and about systems engineering in general. They provided information as well, with details of the product line, descriptions of the work environment, and their motivations for working at Philips. Everyone was extremely friendly and asked very good questions, without being too much of a test (no questions like "how many stop signs are there in the state of Georgia", etc.). I am mid-career, so they were basically getting a feel for my personality and experience level for the specific job.