Qualcomm Systems Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 118 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at Qualcomm.
Qualcomm
Systems Engineer
Mid Easy Neutral experience Decline offer 2 rounds
Interview process
Technical screen Technical screen
Interview formats
Coding Technical
We talked about my projects and I was asked some LeetCode questions where I had to write C code on paper. Then there were questions on computer graphics and about cache policies, operating systems, and C/C++.
Confirmed questions4 questions
- Tell me about your OS knowledge.
- What about computer Architecture?
- Can you discuss computer graphics?
Qualcomm
Systems Engineer
Entry Easy Neutral experience No offer 3 rounds
Interview process
Technical screen Recruiter call
Interview formats
Technical Coding Behavioral
Qualcomm came to my university for two roles, Hardware and Software. I applied for the Hardware Role. There was one round of online tests and 2 interview rounds. Round 1 was an online test. It had 3 sections, each with 20 questions and 30 minutes. You could move through questions within a section. It was +1 for correct and -0.25 for wrong. About 1500 people took the test for both roles.
Confirmed questions4 questions
- Tell me about OOPS concepts.
- Can you discuss Data Structures and Algorithms?
- What are your strengths?
Qualcomm
Systems Engineer
Senior Difficult Positive experience No offer 6 rounds
Interview process
Recruiter call Phone screen Presentation Onsite Technical screen Background check Offer
Interview formats
Technical Presentation Behavioral
After applying, I got an email about two weeks later for a phone screening interview. A week after that, they invited me for an on-site interview which included a 1-hour presentation about my recent research. Then, a week later, I had a virtual on-site interview with five one-on-one interviews (four technical and one HR) right after my research presentation.
Confirmed questions6 questions
- I was asked to elaborate on my resume accomplishments.
- I had to give a 1-hour presentation on my research.
- I was asked technical questions about LTE RAN protocols.
Qualcomm Systems Engineer Interview Questions
Quoted word for word from Qualcomm interview reports.
“Given Nr receive and Nt transmit antennas in a MIMO system, what is the diversity?”
Read reports →“Given two independent and identically distributed random variables X1 and X2 with mean zero and variances sigma1^2 and sigma^2 respectively, what's the variance of X1 + X2?”
Read reports →“What's the expected number of coin flips for a specific result with a biased coin?”
Read reports →“Considering a complex system with a frequency range from -1 to +1 KHz, what is the Nyquist rate, and when does aliasing happen? If the system's bandwidth had a triangular shape, what would its form be after sampling at 2 KHz?”
Read reports →“If you repeatedly convolve a positive signal with itself, what kind of waveform will you get?”
Read report →“How many uses of the scale do you need to find the heavier coin out of N coins?”
Read report →“What's the approach to detect a transmitted symbol in a 1x4 MIMO setup?”
Read report →“If we have a probability density function (PDF) following an exponential distribution with parameter lambda (lambda * e^(-lambda * x)), how would you determine the value of lambda using ten independent observations?”
Read report →“For MIMO systems, what are the advantages of a 2 transmit/1 receive configuration compared to a 1 transmit/2 receive setup?”
Read report →Formats, difficulty and experience
Across all 118 Qualcomm interview reports.