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Qualcomm Hardware Engineer Interview Questions, Process, and Tips
Updated
4 Oct 2024
Top Qualcomm Hardware Engineer Interview Questions and Answers
- Q1. How many ways would one arrange sets of coloured balls, the first set all red, the next all blue, and the last all green, and all balls in a set are identical, in a line?
- Q2. How do you implement the overlap-add method of convolution?
- Q3. How do you obtain the in-phase and quadrature components of a real pass-band signal?
12 Qualcomm Hardware Engineer Interview Experiences
25 questions found
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Anonymous
Interview experience
Good
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Not Selected
I applied via campus placement at PSG College of Technology, Coimbatore and was interviewed in Jul 2024.
3 Interview Rounds
1
Aptitude Test Round
It consisted of aptitude questions, then OS C 1mrks, which were re GATE questions. No coding, I chose hardware role, so questions were from digital electronics too. prepare the gate questions for these subjects
2
Technical Round (2 Questions)
- Q1. Question were from vlsi and SOC design Add Answer
- Q2. Then questions on optimizations in vlsi were asked. Add Answer
3
HR Round (2 Questions)
- Q1. Family and background check Add Answer
- Q2. Resume and projects Add Answer
Interview Preparation Tips
Interview preparation tips for other job seekers - prepare gate questions. negative marking in round 1, so choose wisely. be thorough in any one domain so you can answer all the questions
Interview experience
Good
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Not Selected
I applied via Campus Placement and was interviewed in Apr 2024.
3 Interview Rounds
1
Aptitude Test Round
Basic apptitude and digital and analog mcqs
2
Technical Round (1 Question)
- Q1. Design a 3 input xor gate using 4:1mux View Answers (1)
3
HR Round (1 Question)
- Q1. Wasn't selected to hr round Add Answer
Get interview-ready with top interview questions
Interview experience
Good
Difficulty level
Moderate
Duration
Less than 2 weeks
Result
Not Selected
I applied via campus placement at Indraprastha Institute of Information Technology (IIIT), Delhi and was interviewed in Jul 2023.
2 Interview Rounds
1
Aptitude Test Round
Logical, Quant and English questions. C based theory questions, and digital electronics.
2
Technical Round (3 Questions)
- Q1. Project related questions, SRAM, DRAM device based questions. Add Answer
- Q2. CMOS based questions to determine the drain voltage of a transistor. Add Answer
- Q3. Question about read cycle timing graphs in AHB. Add Answer
Interview Preparation Tips
Interview preparation tips for other job seekers - Be well aware about all what you have stated in your resume.
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Current CTC: 7.6 LPA
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I applied via campus placement at Pachaiyappas College, Chennai and was interviewed before Oct 2021.
3 Interview Rounds
1
Resume Shortlist Round
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
2
Aptitude Test Round
Based on Electronics, Aptitude and Software
3
Technical Round (3 Questions)
- Q1. Explain the working of D flip flop View Answers (1)
- Q2. Finding factorial using C View Answers (1)
- Q3. Find duplicates in a string View Answers (1)
Interview Preparation Tips
Interview preparation tips for other job seekers - Go through basic electronics(ECE) if you are interested in hardware else practice coding
Skills evaluated in this interview
Qualcomm interview questions for designations
Aashrith Vennelakanti
I was interviewed in Sep 2017.
5 Interview Rounds
Interview Questions
- Q1. How do you implement the overlap-add method of convolution?
View Answers (4)
- Q2. Obtain the Nyquist criterion.
View Answers (2)
- Q3. Obtain the Nyquist sampling frequency for an unevenly distributed band-limited signal.
View Answers (1)
- Q4. How do you implement interpolation in discrete-time domain?
View Answers (1)
- Q5. How do you obtain the in-phase and quadrature components of a real pass-band signal?
View Answers (1)
- Q6. How many ways would one arrange sets of coloured balls, the first set all red, the next all blue, and the last all green, and all balls in a set are identical, ...read more
View Answers (2)
- Q7. How do you obtain the bit-rate for quantization of a band-limited signal?
View Answers (1)
- Q8. If you were offered an intern in Communications in Hyderabad, would you take it?
Add Answer
Interview Preparation Tips
Round: Test
Experience: Each section had 20 multiple choice questions and each section was allotted 30 minutes. The aptitude section was fairly difficult due to time constraints. The other two sections had several questions with unfamiliar concepts; however the other questions were easy.
Tips: Practice aptitude questions to increase speed in problem-solving.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: Technical Interview
Experience: The first round was fairly short. The interviewer asked only three questions and I was able to answer all except for the overlap-add question. However I had the intuition to get to part of the answer.
Tips: Just brush up concepts in analog communications and DSP.
Round: Technical Interview
Experience: The second round was longer. The interviewer asked questions mostly in DSP and analog communications. I was able to answer all but one, which involved interpolation in discrete-time domain. The interviewer gave hints on how to get to the solution of the bit-rate and the interpolation question but I was able to answer only the former. The interviewer also asked if I did a course on Linear Algebra, and I affirmed it but I had no memory of it.
Tips: Just like in the first round, but expect more difficult questions.
Round: HR Interview
Experience: The HR interview was very short and the interviewer did not ask any of the typical HR questions except for if I were offered an internship in Communications, I would take it.
Tips: If you make it this far, you'll most likely make it. There is no need to prepare anything in advance.
College Name: IIT Madras
Experience: Each section had 20 multiple choice questions and each section was allotted 30 minutes. The aptitude section was fairly difficult due to time constraints. The other two sections had several questions with unfamiliar concepts; however the other questions were easy.
Tips: Practice aptitude questions to increase speed in problem-solving.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: Technical Interview
Experience: The first round was fairly short. The interviewer asked only three questions and I was able to answer all except for the overlap-add question. However I had the intuition to get to part of the answer.
Tips: Just brush up concepts in analog communications and DSP.
Round: Technical Interview
Experience: The second round was longer. The interviewer asked questions mostly in DSP and analog communications. I was able to answer all but one, which involved interpolation in discrete-time domain. The interviewer gave hints on how to get to the solution of the bit-rate and the interpolation question but I was able to answer only the former. The interviewer also asked if I did a course on Linear Algebra, and I affirmed it but I had no memory of it.
Tips: Just like in the first round, but expect more difficult questions.
Round: HR Interview
Experience: The HR interview was very short and the interviewer did not ask any of the typical HR questions except for if I were offered an internship in Communications, I would take it.
Tips: If you make it this far, you'll most likely make it. There is no need to prepare anything in advance.
College Name: IIT Madras
I was interviewed in Sep 2017.
5 Interview Rounds
Interview Questions
- Q1. How is overlap-add implemented?
View Answers (1)
- Q2. Obtain the Nyquist criterion.
View Answers (1)
- Q3. How do you demodulate a QAM signal?
View Answers (1)
- Q4. How do you implement interpolation in discrete-time domain?
View Answers (1)
- Q5. If you were given an intern in Hyderabad, would you take it?
Add Answer
Interview Preparation Tips
Round: Test
Experience: There were 20 questions in each section and 30 minutes for each. Aptitude was fairly difficult due to time. The remaining two sections had a lot of questions with unfamiliar concepts, like linked lists and digital communications. However, the questions were easy otherwise.
Tips: Practice aptitude questions to increase speed of solving.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: HR Interview
Experience: The interviewer was friendly and asked only if I was interested in a Communications intern in Hyderabad. He didn't ask any of the typical HR questions.
College Name: IIT Madras
Experience: There were 20 questions in each section and 30 minutes for each. Aptitude was fairly difficult due to time. The remaining two sections had a lot of questions with unfamiliar concepts, like linked lists and digital communications. However, the questions were easy otherwise.
Tips: Practice aptitude questions to increase speed of solving.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: HR Interview
Experience: The interviewer was friendly and asked only if I was interested in a Communications intern in Hyderabad. He didn't ask any of the typical HR questions.
College Name: IIT Madras
5 Interview Rounds
Interview Preparation Tips
Round: Test
Duration: 1 hour
Round: Stress Interview
Experience: Baisc concepts that every electronics student must know about. (Like MOSFET, verilog concepts) But they test u in really detail so u need to be thorough with it concepts if u need to clear this round. They expect very accurate, precise and correct answers
Round: Technical Interview
Experience: U should be thorough with verilog concepts as well as everything related to digital systems.
Tips: Know ur subjects well. Be confident and prove that ur worth hiring. They might intimidate you but be confident about your answers. :)
Round: HR Interview
Experience: Resume related. Doing good projects and internships always help.
College Name: BITS Pilani
Duration: 1 hour
Round: Stress Interview
Experience: Baisc concepts that every electronics student must know about. (Like MOSFET, verilog concepts) But they test u in really detail so u need to be thorough with it concepts if u need to clear this round. They expect very accurate, precise and correct answers
Round: Technical Interview
Experience: U should be thorough with verilog concepts as well as everything related to digital systems.
Tips: Know ur subjects well. Be confident and prove that ur worth hiring. They might intimidate you but be confident about your answers. :)
Round: HR Interview
Experience: Resume related. Doing good projects and internships always help.
College Name: BITS Pilani
Career Contrails
I applied via campus placement at Indian Institute of Technology (IIT), Chennai
4 Interview Rounds
Interview Preparation Tips
Round: Test
Experience: All Sections have negative marking.Aptitude part was easy and I felt Programming some tough as I was not accustomed to terms in coding.Third section has different profiles 1)Hardware(circuits and digital electronics) 2)Communication 3)Software.I appeared for Hardware and I felt the paper was lengthy as it has 20 questions and only 30 minutes to solve and it was tough.It was based on concepts like analog circuits,digital circuits,computer architecture.
Tips: For aptitude general prep is enough.
Section 3 plays important role.So you must be clear about related topics to answer.
Be relaxed and try to answer known questions leaving unknown behind.
Duration: 90 minutes
Total Questions: 60
Round: Technical Interview
Experience: I was selected for Hardware partas I applied for it.
Basic questions on circuits and digital systems were asked..
Some about diodes and its basic functions.
Digital questions on counters and decoders were asked.
Tips: Be confident on what you know and try to prove you were strong in particular area.
Questions were easy if u have prepared even a little bit.
Round: HR Interview
Experience: They ask about your interests and your future plans and what are you expecting from your job.They want to know are you flexible to do and learn any subject.
They ask what do you know about company.
Tips: Don't get nervous . Always keep your attitude up but don't be arrogant .
Learn something about Qualcomm like their products etc..
General Tips: Know your basics in electronics well.
Be confident throughout the interview.
Skill Tips: Prepare well about circuits.
Skills: Analog And Digital Knowledge
Duration: 2
College Name: IIT Madras
Motivation: I was interested in Electronics and Qualcomm would be a great place to work in Electronics.
Experience: All Sections have negative marking.Aptitude part was easy and I felt Programming some tough as I was not accustomed to terms in coding.Third section has different profiles 1)Hardware(circuits and digital electronics) 2)Communication 3)Software.I appeared for Hardware and I felt the paper was lengthy as it has 20 questions and only 30 minutes to solve and it was tough.It was based on concepts like analog circuits,digital circuits,computer architecture.
Tips: For aptitude general prep is enough.
Section 3 plays important role.So you must be clear about related topics to answer.
Be relaxed and try to answer known questions leaving unknown behind.
Duration: 90 minutes
Total Questions: 60
Round: Technical Interview
Experience: I was selected for Hardware partas I applied for it.
Basic questions on circuits and digital systems were asked..
Some about diodes and its basic functions.
Digital questions on counters and decoders were asked.
Tips: Be confident on what you know and try to prove you were strong in particular area.
Questions were easy if u have prepared even a little bit.
Round: HR Interview
Experience: They ask about your interests and your future plans and what are you expecting from your job.They want to know are you flexible to do and learn any subject.
They ask what do you know about company.
Tips: Don't get nervous . Always keep your attitude up but don't be arrogant .
Learn something about Qualcomm like their products etc..
General Tips: Know your basics in electronics well.
Be confident throughout the interview.
Skill Tips: Prepare well about circuits.
Skills: Analog And Digital Knowledge
Duration: 2
College Name: IIT Madras
Motivation: I was interested in Electronics and Qualcomm would be a great place to work in Electronics.
4 Interview Rounds
Interview Preparation Tips
Round: Test
Experience: Online Test(around 130 students):General Aptitude,C-Aptitude,Technical Section(ECE).
Round: Technical Interview
Experience: Technical Interview 1 (18 students): In this interview I was asked about basic analog electronics,fliters based on OpAmps and frequency response of RLC circuits.I was also asked to explain about my intern projects in this round.
3.Technical Interview 2 (8 students): This round covered basics of Digital System Design and realizing boolean expressions using MOSFET'S (basic VLSI)
Round: HR Interview
Experience: This round was just a formality to ensure that I am truly interested in the company.
General Tips: "1.Always explain each step while giving your answer. Your approach is more important than the final answer itself.
2. Know your basics in electronics well. This will help you to solve any question.
3. Be confident throughout the interview.
4. Highlight any important project in your resume especially those related to electronics."
Focus on reviewing your basics in Digital System Design, Circuit Theory and Linear Integrated Circuits. Also spend some time on studying the basics of VLSI.
Go through concepts of trees, linked lists, sorting and complexity of algorithms which will help in the online test.
Skill Tips: 1.For general aptitude the book 'Quantitative Aptitude by RS Aggarwal' should be helpful.
2.For C-Aptitude 'Let us C' by Yashwanth P Kanetkar helped me to revise the basics of C programming and the book 'Data Structures in C' by AM Padma Reddy helped for understanding the basics of linked lists and trees.
3. For the technical questions going through any basic analog and digital electronics book will suffice.
Skills:
College Name: NIT Surathkal
Experience: Online Test(around 130 students):General Aptitude,C-Aptitude,Technical Section(ECE).
Round: Technical Interview
Experience: Technical Interview 1 (18 students): In this interview I was asked about basic analog electronics,fliters based on OpAmps and frequency response of RLC circuits.I was also asked to explain about my intern projects in this round.
3.Technical Interview 2 (8 students): This round covered basics of Digital System Design and realizing boolean expressions using MOSFET'S (basic VLSI)
Round: HR Interview
Experience: This round was just a formality to ensure that I am truly interested in the company.
General Tips: "1.Always explain each step while giving your answer. Your approach is more important than the final answer itself.
2. Know your basics in electronics well. This will help you to solve any question.
3. Be confident throughout the interview.
4. Highlight any important project in your resume especially those related to electronics."
Focus on reviewing your basics in Digital System Design, Circuit Theory and Linear Integrated Circuits. Also spend some time on studying the basics of VLSI.
Go through concepts of trees, linked lists, sorting and complexity of algorithms which will help in the online test.
Skill Tips: 1.For general aptitude the book 'Quantitative Aptitude by RS Aggarwal' should be helpful.
2.For C-Aptitude 'Let us C' by Yashwanth P Kanetkar helped me to revise the basics of C programming and the book 'Data Structures in C' by AM Padma Reddy helped for understanding the basics of linked lists and trees.
3. For the technical questions going through any basic analog and digital electronics book will suffice.
Skills:
College Name: NIT Surathkal
Qualcomm Interview FAQs
How many rounds are there in Qualcomm Hardware Engineer interview?
Qualcomm interview process usually has 3 rounds. The most common rounds in the Qualcomm interview process are Aptitude Test, Technical and Resume Shortlist.
How to prepare for Qualcomm Hardware Engineer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Qualcomm. The most common topics and skills that interviewers at Qualcomm expect are Analog, Packaging, RF, Circuit Designing and Hardware Design.
What are the top questions asked in Qualcomm Hardware Engineer interview?
Some of the top questions asked at the Qualcomm Hardware Engineer interview -
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