I applied through a staffing agency. I interviewed at RH USA (Livermore, CA) in Nov 2018
Interview
They ask if you are familiar with semiconductor lasers, if you are familiar with 3D modeling. Everything adheres to your resume and job description. Overall very nice personal. I would say be calm as they know you dont posses all the knowledge of the company. It would be wise to research thier company. I was interviewed by a panel of three people.