I would suggest we cautious before going for interview.They inform that to your current employer and sometimes it can create a problem for you.They will check how you approach you work and handle challenges and collaboration.

I applied online through their careers portal and was contacted by recruiter for a phone screening. I was asked to go through my resume and explain how my skills and experience match the job description. I was then scheduled for a phone interview with hiring manager and asked to do the same. 3 weeks later I was scheduled for 4 on-site interviews (one after another) with management team. All interviewees were respectful and patient but they kept asking same questions over and over again. No technical questions were asked. Recruiter never got back to me to provide an update.