Qualcomm
3.9 of 5 1,260 reviews
www.qualcomm.com San Diego, CA 5000+ Employees

Qualcomm DSP Interview Questions & Reviews

Updated Feb 25, 2014
All Interviews Received Offers

Getting the Interview 

83%
7%
7%

Interview Experience 

42%
35%
21%

Interview Difficulty 

18 candidate interviews Back to all interview questions
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2 people found this helpful

No Offer

Positive Experience

Difficult Interview

Systems Engineer - Wireless DSP Engineer Interview

Anonymous Interview Candidate
Newark, NJ

I applied online and the process took 3 weeks - interviewed at Qualcomm in December 2013.

Interview Details – I first received an email informed me that I was selected for a phone interview whine 3-5 days. Next, I received an email from the interviewer. We scheduled the interview time and day and he called me on that time. Question were all technical. Among them:

1- My current research and job
2- What is channel coherence time and bandwidth
3- How to perform maximum likelihood detection of QAM over AWGN and fading channel
4- Questions on detection of MIMO-OFDM? Difference between MMSE and MLE? which one is better? and which one is optimum? How they perform In high SNR and low SNR?
5- Questions on fixed-point implementation
6-

Interview Question – Questions on detection of MIMO-OFDM? Difference between MMSE and MLE? which one is better? and which one is optimum? How they perform In high SNR and low SNR?
5- Questions on fixed-point implementation
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No Offer

Neutral Experience

Average Interview

Audio DSP Engineer Interview

Anonymous Interview Candidate
San Diego, CA

I applied online and the process took 2 months - interviewed at Qualcomm in June 2013.

Interview Details – Submit my resume online, and after one week get a phone interview about one hour. Most of the phone interview are signal processing related basic questions such as how to detect the voice pitch, how to do adaptive noise reduction, filter designs, etc.
After two weeks, get an invitation for on-site interview in San Diego. I met total 7 people including the recruiter at the first. One hour for each person. The rest of them are engineers including the manager in the group. Basic signal processing questions are asked and I feel I am doing well. One of them asked some coding problems and asked me to write the code on the blackboard. The problems are very basic such as reversing a linked list, and matrix operation, etc. However, I think I am not doing well in the coding questions, which is probably the main reason of the rejection.

Interview Question – All are basic signal processing questions, no surprisingly unexpected ones.   Answer Question

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No Offer

Positive Experience

Difficult Interview

Audio DSP Engineer Interview

Anonymous Interview Candidate
San Diego, CA

I applied online and interviewed at Qualcomm.

Interview Details – Initial communication was through email. Phone interview was an hour long and consisted of questions about the resume. The on-site interview consisted of 6 technical interviews each about 50 minutes to an hour long.

Interview Question – Interviewers asked most of the questions from the resume. Also a few questions related to fixed point arithmetic (Q representation) were asked. Also was asked to write a program that involved bitwise operators in C.   Answer Question

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Declined Offer

Negative Experience

Average Interview

DSP Engineer Interview

Anonymous Interview Candidate
San Diego, CA

I applied online and the process took 2+ weeks - interviewed at Qualcomm in August 2009.

Interview Details – Interviewers just want to make sure to ask a questions that make the candidates look stupid and make themselves look genius.

Interview Question – All textbook questions   Answer Question

Reason for Declining – The offer was too low

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No Offer

Neutral Experience

Average Interview

DSP Engineer Intern Interview

Anonymous Interview Candidate
San Diego, CA

I applied online - interviewed at Qualcomm in April 2013.

Interview Details – applied online through career site. it was a phone interview for about 45 minutes. Interview went quite well. waiting for response

Interview Question – Mostly on DSP concepts   Answer Question

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No Offer

Neutral Experience

Average Interview

DSP Embedded Software Engineer Interview

Anonymous Interview Candidate

I applied online - interviewed at Qualcomm in March 2013.

Interview Details – phone screen 45 mins.
volatile
difference bt IIR and FIR
how to implement IIR in C (feedback)
how to implement non-causal IIR
how to do division in fixed point(only substraction and plus)
matched filter
channel equalization

Interview Question – how to do division in fixed point(only substraction and plus)
specific grammar of how to allocate a value to an address
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No Offer

Neutral Experience

Average Interview

DSP Firmware Engineer Interview

Anonymous Interview Candidate

I applied online and the process took 5 days - interviewed at Qualcomm in March 2013.

Interview Details – I had a phone interview . I was expecting a detailed questionnaire on my projects but the interviewer started out with questions on C and then went on to ask questions related to DSP and Communications theory. The interviewer was good and was very patient in asking each question and listening to my answers.

Interview Question – Most difficult part for me were questions on C which i did not prepare at all. There were questions related to embedded systems and questions on Cache memory.   Answer Question

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No Offer

Neutral Experience

Average Interview

DSP Firmware Engineer Interview

Anonymous Interview Candidate
Santa Clara, CA

I applied online and the process took 4+ weeks - interviewed at Qualcomm in January 2013.

Interview Details – Applied on their career website. First was the phone interview where they asked about my projects and some basic questions. Called onsite at Santa Clara where i had 6 interviews.

Interview Question – questions were pretty simple like create a linked list of n nodes, some puzzles   Answer Question

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No Offer

Neutral Experience

Difficult Interview

DSP Firmware Developer (Wireless Modem) - All Levels Interview

Anonymous Interview Candidate

I applied online and the process took 1 week - interviewed at Qualcomm in February 2013.

Interview Details – Recruiter sent email to schedule a phone interview. Asked details of my project and programmed liner convolution with C

Interview Question – very detailed questions of my project and it's hard to explain it clearly by phone   Answer Question

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No Offer

Negative Experience

Difficult Interview

DSP Modem Engineer Interview

Anonymous Interview Candidate
Sunnyvale, CA

I applied online and the process took a day - interviewed at Qualcomm in September 2011.

Interview Details – Group doesn't really need people but just looking for exceptionally smart people. Be very well before attending the interview.

Interview Questions

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Glassdoor is your free inside look at Qualcomm DSP interview questions and advice. All 18 interview reviews posted anonymously by Qualcomm employees and interview candidates.