It was long but quick process.
They scheduled 5 rounds (each of 1 hour).
In interview they asked about complete product lifecycle, handling of any issues, basic knowledge of electronics, interface knowledge, and questions based on your past experiences and resume.
Interview questions [1]
Question 1
What is the difference between I2C and SPI communication interfaces?
The interview focused on general questions about my past projects and how I approached design decisions. They also asked how I would modify or restructure certain elements, looking for my reasoning process, adaptability, and how I think through engineering trade-offs.