The technical interview was one of the better ones. Rather than being forced to produce instantaneous results under a microscope on the spot you are given time to review the questions and produce results that come up in the next 1:1 interview.
The CEO wants to know how you handle conflict. Which is never a straight forward question or answer since conflict comes in many forms and is managed in different ways.
Questions related to RTO, Object Oriented Programming and C++. Race conditions, Dead locks and priority inversion. Interface inheritance, Virtual functions, Abstract class...
Glassdoor has 4 interview questions and reports from Principal embedded software engineer interviews. Prepare for your interview. Get hired. Love your job.