Discussion with recruiter

1 round with manager - Technical + coding + resume

5 onsite rounds in virtual onsite + discussion with recruiter

It would have been easy for someone having a stronger background in wireless communication.

A recruiter cold-called after my resume was submitted for another position.

I applied to a DSP FW engineer position.

• 1st round: Technical, behavioral, and resume-based questions with the Hiring Manager.

I received positive feedback, but the manager wanted me to interview for a different position (virtual onsite interview).

I applied to the position; it wasn't an exact match, but there was some relevance.

Onsite (6 rounds total, including with a recruiter):

• 1st round: General questions around embedded systems, resume-based questions, and Q format values. One coding question: find the number of 1's in a number.
• 2nd round: Technical questions around wireless communications, FFTs, and how to decide on FFT length for a certain sample rate. (I found this difficult as wireless is not what I prepared for.)
• 3rd round: Discussion around my resume, some questions, and probing around embedded system design. Coding questions included: find the size of a structure with a variable specifying a bit field, and code a function to change the endianness of a value.
• 4th round: With the manager; again, a discussion on my resume and technical aspects of the job. (This was a light round in terms of technicality.)
• 5th round: Technical questions on wireless communication and different modulations. One coding question: convert soft bits of QPSK to hard bits where the size of soft bits is 6 bits in a continuous data stream.
• Recruiter round: Focused on "why Apple," "why did you leave your last job," and "why are you looking to switch now."