I applied online. The process took 1 week. I interviewed at Lake Shore Cryotronics (Westerville, OH) in Dec 2018
Interview
The process was straightforward. I was contacted by HR for a phone screening. I passed and was invited on-site. The on-site interview went south as they asked me questions about concepts I had long forgotten from freshman year.
Interview questions [1]
Question 1
All I can say here is know your Op-Amps. All the standard ones. Know the difference between BJT's and MOSFETs.