I applied through a staffing agency. The process took 4 weeks. I interviewed at STMicroelectronics
Interview
There were two lengthy good quality technical rounds, followed by a management review, and to end with HR.
Both the technical rounds include questions related to your previous experience, and basics such as C and Embedded topics.
HR is also quite lengthy and shows quality. You need to present the right attitude.
Interview questions [1]
Question 1
Q. What is priority inversion in RTOS?
Q. What is the difference between mutex and a binary semaphore?