Qualcomm Engineer interview questions

I applied online. Two weeks after, I had a first phone chat with the manager of the team. Then two technical phone interviews the week after. A week after that, I received an invitation for an on-site interview (San Diego headquarters). A week after, I received an offer

Tech, Apti, Coding, HR. Starts with VLSI, ARM, comparch. Next round is Aptitude. Next is Coding and data structures. last is HR round. Most question start with basics and end with the implementation on actual hardware. Aptitutde questions require skilled thinking.