Embedded engineer

1.) C++ with embedded systems....too many people say they have C++ but haven't done it for embedded product or have actually been working more in C or Matlab and not actually C++. The interviewers will ask technical questions about C++ and object oriented programming and understanding of embedded systems

2.) RTOS experience and multithreading...understanding concepts of operating systems and synchronization...ability to talk about what RTOS they have experience in, and demonstrating understanding of RTOS

3.) Someone who has worked in a Test Driven Development environment...."How do you test? Do you do unit testing? Do you have Google Test experience or what do you use?" This is NOT QA testing. This is demonstrating experience in a fast-paced development environment where you have to do your own unit testing before handing it over to QA