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Qualcomm Software Engineer Interview Questions, Process, and Tips

Updated 4 Mar 2025

Top Qualcomm Software Engineer Interview Questions and Answers

  • Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because ...read more
  • Q2. Given an array A[n], write a C program to find P and Q (P>Q) such that A[P] - A[Q] is maximum
  • Q3. What is scheduling? List different types of scheduling
View all 45 questions

Qualcomm Software Engineer Interview Experiences

37 interviews found

Software Engineer Interview Questions & Answers

user image Sharath Chandra

posted on 10 May 2017

I was interviewed in Sep 2016.

Interview Questionnaire 

1 Question

  • Q1. Write a code for scheduling in C
  • Ans. 

    Code for scheduling in C

    • Define a struct for the task with fields like start time, end time, priority, etc.

    • Create an array of tasks and sort them based on priority and start time

    • Implement a scheduling algorithm like Round Robin or Priority Scheduling

    • Use system calls like fork() and exec() to create and execute processes

    • Implement synchronization mechanisms like semaphores or mutexes to avoid race conditions

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: There were 3 sections.Aptitude,C programming,Software / Communication / Hardware
Tips: U should be very fast while solving.Aptitude is normal.C programming qsns mainly consists of simple C like trees,arrays,sorting etc.I chose software for 3rd section as I wanted software profile .It has qsns based on OS(little bit linux),Data structures and Algorithms.
Duration: 2 hours
Total Questions: 60

Round: Technical Interview
Experience: Just asked me qsns related to Data structures
Tips: Solve sums in geeksforgeeks

Round: HR Interview
Experience: Its for fun.HR talks about unrelated things :P .If u got selected for HR,then u are selected for job.

College Name: IIT Kharagpur

Skills evaluated in this interview

Software Engineer Interview Questions & Answers

user image Saikumar Yadugiri

posted on 17 Sep 2016

I applied via Campus Placement

Interview Questionnaire 

10 Questions

  • Q1. What are static, volatile, const in C mean ?
  • Ans. 

    Static, volatile, const are C keywords used to define properties of variables.

    • Static: used to define a variable that retains its value between function calls

    • Volatile: used to indicate that a variable's value may change unexpectedly, e.g. in an interrupt

    • Const: used to define a variable whose value cannot be changed once initialized

  • Answered by AI
  • Q2. Write a pseudo code to remove a node from a linked list
  • Ans. 

    Pseudo code to remove a node from a linked list

    • Find the node to be removed

    • Update the previous node's next pointer to point to the next node

    • Free the memory occupied by the removed node

  • Answered by AI
  • Q3. How do you manage ISR ?
  • Ans. 

    ISR stands for Interrupt Service Routine. It is managed by prioritizing interrupts and handling them in a timely manner.

    • Prioritize interrupts based on their importance

    • Handle interrupts in a timely manner to prevent delays in the system

    • Ensure that the ISR does not interfere with the normal flow of the program

    • Test the ISR thoroughly to ensure that it works as expected

    • Use appropriate tools and techniques to debug any issu

  • Answered by AI
  • Q4. What is the difference between task, process and thread ?
  • Ans. 

    Task is a unit of work, process is an instance of a program, and thread is a subset of a process.

    • Task is a single unit of work that needs to be completed.

    • Process is an instance of a program that is being executed.

    • Thread is a subset of a process that can run concurrently with other threads.

    • A process can have multiple threads, but a thread can only belong to one process.

    • Threads share the same memory space, while processe...

  • Answered by AI
  • Q5. What is the difference between multi-threading, multi-processing and multi-tasking ?
  • Ans. 

    Multi-threading, multi-processing and multi-tasking are different ways of achieving parallelism in computing.

    • Multi-threading is a technique of dividing a single process into multiple threads that can run concurrently.

    • Multi-processing is a technique of dividing a single process into multiple processes that can run concurrently.

    • Multi-tasking is a technique of running multiple processes or tasks concurrently on a single p...

  • Answered by AI
  • Q6. What is mutex ?
  • Ans. 

    Mutex is a synchronization mechanism used to prevent multiple threads from accessing shared resources simultaneously.

    • Mutex stands for mutual exclusion.

    • It is used to protect shared resources from race conditions.

    • Mutex provides exclusive access to a shared resource.

    • It is used in multi-threaded programming.

    • Mutex can be implemented using locks or semaphores.

  • Answered by AI
  • Q7. Tell me about yourself and the projects you have done
  • Ans. 

    I am a software engineer with experience in developing web applications and mobile apps.

    • Developed a web application for a retail company using React and Node.js

    • Created a mobile app for a fitness startup using React Native

    • Worked on a project to automate data entry for a healthcare organization using Python

    • Contributed to an open-source project for a social media platform using Ruby on Rails

  • Answered by AI
  • Q8. What are your hobbies ?
  • Ans. 

    I enjoy reading, playing video games, and hiking.

    • Reading: I love to read books on various topics, including science fiction, history, and philosophy.

    • Video games: I enjoy playing games that challenge my problem-solving skills, such as puzzle games and strategy games.

    • Hiking: I like to explore new trails and enjoy the beauty of nature.

  • Answered by AI
  • Q9. Do you have any questions you want to ask me ?
  • Q10. How much do you about Qualcomm ?
  • Ans. 

    Qualcomm is a semiconductor and telecommunications equipment company based in San Diego, California.

    • Qualcomm is a leading provider of wireless technology and services.

    • They are known for their Snapdragon processors used in smartphones and other devices.

    • Qualcomm has been involved in several legal disputes with Apple and other companies over patent infringement.

    • They also have a strong presence in the development of 5G tec...

  • Answered by AI

Interview Preparation Tips

Round: Technical Interview
Experience: My overall experience was great. I felt very good inside the room . They offered me enough time and resources to answer the questions.
Tips: Be strong with basics and be confident.

Round: HR Interview
Experience: It was very pleasant . The HR was very friendly.
Tips: Just be confident.

Round: Test
Experience: I really enjoyed the test. But it would've been great if I were allowed to go back to previous section after I have finished the current one.
Tips: You need to be strong in basics and should have off the hat answering skills to pass this.
Duration: 90 minutes
Total Questions: Software

General Tips: Just be yourself
Skill Tips: Be thorough with code manipulations and data-structures
Skills: Math Puzzles, 12th Class Maths, Implementation Of Code Using OOPS, Object Oriented Programming (OOP) Basics, Java Programming, 1)communication, C
Duration: 2
College Name: IIT Madras
Motivation: I wanted to work in a software field that also has a good integration with hardware
Funny Moments: My friends had a really good chatter outside the office

Skills evaluated in this interview

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Interview Preparation Tips

Round: Test
Experience: There was an online written test of 55 multiple choice questions in 70 minutes. This included:
20 questions of aptitude
15 questions of programming
25 questions of basic C++/operating systems
Duration: 70 minutes
Total Questions: 55

Round: Technical Interview
Experience: My interview was a technical interview. It had questions from my core branch which was electronics. The other topics which were discussed in the interview were:
OOPs concept
Operating System
Compiler
Bit related questions
There were also some other questions like puzzles and some pretty easy case studies which were based on logical reasoning and quantitative ability.

Round: HR Interview
Experience: There was a HR interview in which they asked me about myself, my family, my strengths and weaknesses and also why was I suitable for the company. According to me if you could have impressed them with your technical skills you would have won half the battle.

College Name: IIT BOMBAY

I was interviewed in Sep 2016.

Interview Questionnaire 

2 Questions

  • Q1. Explain about your project
  • Ans. 

    Developed a web application for online shopping with user authentication and payment gateway integration.

    • Implemented user authentication using JWT tokens

    • Integrated Stripe API for payment processing

    • Designed responsive UI using React and Bootstrap

  • Answered by AI
  • Q2. Explain insertion in binary search trees
  • Ans. 

    Insertion in binary search trees involves finding the appropriate position for a new node based on its value.

    • Start at the root node and compare the value of the new node with the current node.

    • If the new node's value is less than the current node, move to the left child node.

    • If the new node's value is greater than the current node, move to the right child node.

    • Repeat the comparison and movement until reaching a leaf nod...

  • Answered by AI

Interview Preparation Tips

Round: Technical Interview
Experience: The interviewer was mostly interested in the projects and my CPI which thankfully was not bad. One of my projects was a loose brush off of a patent he was developing so I got him to talk about the project and that took most of the time!
Tips: Be thorough about the projects mentioned in the CV.
Data structures and algorithms

College Name: IIT Varanasi

Skills evaluated in this interview

Qualcomm interview questions for designations

 Senior Software Engineer

 (7)

 Embedded Software Engineer

 (2)

 Associate Software Engineer

 (2)

 Software Engineer Intern

 (2)

 Senior Software Engineer 2

 (1)

 Software Developer

 (11)

 Software Tester

 (1)

 Dsp Software Engineer

 (1)

Software Engineer Interview Questions & Answers

user image Sravan Kumar Ankireddy

posted on 17 Sep 2016

I applied via Campus Placement and was interviewed in Jan 2016. There were 4 interview rounds.

Interview Preparation Tips

Round: Test
Experience: Aptitude section won't be a problem.Questions were simple and straight forward.
Decent knowledge of C and C++ will be enough to answer the Programming section.
I chose communication in the 3rd section.I was expecting questions related to signal processing.But most of the questions were related to communication like modulation, quantization level, Shanon's therom etc.The course wasn't done yet for us.So I was able to answer only 5-6 questions and the remaining I took some calculated guesses to the best of my knowledge
Tips: Select communication profile only if you had done a proper communication course.Signals and Systems & Digital Signal Processing courses won't be enough.While preparing concentrate on one area and prepare well.It will be useful for both exam as well as the interview.While answering the 1st two sections of the test time management is important as the questions are easy and given the time everyone can answer all the questions
Total Questions: 60

Round: Technical Interview
Experience: I attended the technical interviews for both Communication and Software profiles.
For the communication profile it's advantageous to remember transformations for some common functions.And you need to have clarity about what you are doing.The basics should be strong.
The Software interview was chill.All the questions were about basic C.And for some guys puzzles were asked
Tips: A good resume always helps you out in some situations.I kind of cupped in the Comm round.But in the Software round in the beginning of the interview itself she asked about my areas of interest and my projects.She asked me to explain in detail about one of the projects of my choice and she was really impressed with the idea of that project.After that the interview was chill only

Round: HR Interview
Experience: The HR round was just a formality.He called me and informed that I have been selected in Software profile and the location will be Hyderabad.Other than that nothing was there.
Although for some of the other candidates they completely asked about the resume and some routine questions

Skills: C Programming, Aptitude
Duration: 2 months
College Name: IIT Madras

Get interview-ready with Top Qualcomm Interview Questions

I was interviewed in Sep 2017.

Interview Questionnaire 

2 Questions

  • Q1. Find the sum of two numbers without using any mathematical operarors.
  • Ans. 

    Use bitwise operations to find the sum of two numbers without using mathematical operators.

    • Use bitwise XOR to find the sum of two numbers without carrying.

    • Use bitwise AND and left shift to find the carry.

    • Repeat the process until there is no carry left.

  • Answered by AI
  • Q2. Delete a node from linked list when we are given a reference to the node. But the head pointer is not given.
  • Ans. 

    To delete a node from a linked list when only given a reference to the node, we can copy the data of the next node to the given node and delete the next node.

    • Copy the data of the next node to the given node

    • Update the next pointer of the given node to skip the next node

    • Delete the next node

  • Answered by AI

Interview Preparation Tips

Round: Technical Interview
Tips: Strong understanding and thorough knowledge of C programming.

College Name: IIT Madras

Skills evaluated in this interview

Software Engineer Jobs at Qualcomm

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Software Engineer Interview Questions & Answers

user image Pavan Dronavalli

posted on 18 Sep 2016

I applied via Campus Placement

Interview Questionnaire 

16 Questions

  • Q1. Bridge and torch problem : Four people come to a river in the night. There is a narrow bridge, but it can only hold two people at a time. They have one torch and, because it's night, the torch has to be us...
  • Q2. Given an array A[n], write a C program to find P and Q (P>Q) such that A[P] - A[Q] is maximum
  • Q3. A pyramid is given many blank spaces. Condition is that number in a cell equals sum of numbers in bottom two cells. Fill the blanks
  • Ans. 

    The question asks to fill the blanks in a pyramid where each number is the sum of the numbers in the bottom two cells.

    • Start from the bottom row and work your way up, calculating the sum of the numbers in the bottom two cells for each blank space.

    • Use a loop to iterate through each row and column of the pyramid.

    • Store the calculated sum in the corresponding blank space.

    • Repeat the process until all the blanks are filled.

  • Answered by AI
  • Q4. What are the basic functions of OS?
  • Q5. What is scheduling? List different types of scheduling
  • Q6. What is a deadlock? How to know if a deadlock is present?
  • Q7. What is Moore's Law?
  • Ans. 

    Moore's Law is the observation that the number of transistors in a dense integrated circuit doubles about every two years.

    • Named after Intel co-founder Gordon Moore

    • First stated in 1965

    • Has been a driving force behind technological advancements

    • Predicts exponential growth in computing power

    • Has been challenged in recent years due to physical limitations

  • Answered by AI
  • Q8. Differentiate between a process and a thread
  • Ans. 

    A process is an instance of a program while a thread is a subset of a process.

    • A process has its own memory space while threads share memory space

    • Processes are heavyweight while threads are lightweight

    • Processes communicate through inter-process communication while threads communicate through shared memory

    • Examples of processes include web browsers, text editors, etc. while examples of threads include GUI updates, backgro

  • Answered by AI
  • Q9. What are the advantages of having multi-core processor?
  • Ans. 

    Multi-core processors provide faster and more efficient computing.

    • Improved performance and speed

    • Ability to handle multiple tasks simultaneously

    • Reduced power consumption

    • Better multitasking capabilities

    • Enhanced user experience

    • Examples: Intel Core i7, AMD Ryzen 9

  • Answered by AI
  • Q10. Tell me about yourself and your family briefly
  • Ans. 

    I am a software engineer with a loving family.

    • I have been working as a software engineer for 5 years.

    • My wife is a teacher and we have two children.

    • We enjoy spending time together outdoors and traveling.

    • My parents live in a different state but we keep in touch regularly.

    • Family is very important to me and I prioritize spending time with them.

  • Answered by AI
  • Q11. Tell me about your course projects
  • Ans. 

    Developed a web-based project management tool and a mobile app for tracking expenses

    • Created a responsive UI using React and Bootstrap

    • Implemented user authentication and authorization using Firebase

    • Integrated Google Maps API for location tracking in the mobile app

    • Used Node.js and MongoDB for backend development

    • Collaborated with a team of four to complete the projects

  • Answered by AI
  • Q12. Tell me about your professional experience
  • Ans. 

    I have 5 years of experience in software engineering with expertise in Java and Python.

    • Developed and maintained web applications using Java and Spring framework

    • Designed and implemented RESTful APIs using Python and Flask

    • Worked on database management and optimization using MySQL and MongoDB

    • Collaborated with cross-functional teams to deliver high-quality software products

    • Participated in code reviews and provided construc

  • Answered by AI
  • Q13. What are your academic interests?
  • Ans. 

    My academic interests include computer science, artificial intelligence, and machine learning.

    • Computer science

    • Artificial intelligence

    • Machine learning

  • Answered by AI
  • Q14. Explain one CS topic(of your choice) in layman terms
  • Ans. 

    Explain Big O notation

    • Big O notation is used to describe the time complexity of an algorithm

    • It helps us understand how the algorithm's performance changes with input size

    • O(1) means constant time, O(n) means linear time, O(n^2) means quadratic time

    • We want algorithms with lower Big O values for better performance

  • Answered by AI
  • Q15. What are your location preferences?
  • Ans. 

    I am open to relocation based on the job opportunity and growth prospects.

    • Open to relocation for the right opportunity

    • Willing to move for career growth

    • Flexible with location based on job requirements

  • Answered by AI
  • Q16. Would you like to have a pizza slice? ;)
  • Ans. 

    Yes, I would love to have a pizza slice!

    • I am a big fan of pizza and would never say no to a slice!

    • Pizza is the perfect food for any occasion, whether it's a quick lunch or a late-night snack.

    • I particularly enjoy pepperoni and mushroom pizza, but I'm open to trying new toppings as well.

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: Questions were of average difficulty but lengthy. The test was conducted between 7:30 PM and 9 PM. I had a long day so it was a little tiresome.
Tips: Time is of importance. I suggest you to quickly browse through all the questions and pick the easy ones beforehand instead of being stuck on a single difficult question.
Duration: 90 minutes
Total Questions: 60

Round: Technical Interview
Experience: I found the questions easy so I was able to answer them all.
Tips: Don't just think in your mind. Think out loud so that the interviewer can correct you.

Round: HR Interview
Experience: Interviewer was friendly. It was like talking with a friend.
Tips: Keep it short and brief. It's fine even if your English is not good. (Mine wasn't )

General Tips: Be cool and calm. If you don't know something, admit it. You can come back to it later.
Skill Tips: No need to go very deep. Just know the basics properly.
Skills: Puzzle Solving Capability, Computer Organisation, Operating System Basics, Object Oriented Programming (OOP) Basics, C Programming, Aptitude
Duration: 2
College Name: IIT Madras
Motivation: Qualcomm is an industry leader in mobile hardware. The work profile suited me well.
Funny Moments: The nice HR lady offered me a pizza slice.

Skills evaluated in this interview

Qualcomm Interview FAQs

How many rounds are there in Qualcomm Software Engineer interview?
Qualcomm interview process usually has 2-3 rounds. The most common rounds in the Qualcomm interview process are Technical, Coding Test and One-on-one Round.
How to prepare for Qualcomm Software 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 Python, Staffing, Computer science, C++ and Linux.
What are the top questions asked in Qualcomm Software Engineer interview?

Some of the top questions asked at the Qualcomm Software Engineer interview -

  1. Bridge and torch problem : Four people come to a river in the night. There is a...read more
  2. Given an array A[n], write a C program to find P and Q (P>Q) such that A[P] - A...read more
  3. What is scheduling? List different types of schedul...read more
How long is the Qualcomm Software Engineer interview process?

The duration of Qualcomm Software Engineer interview process can vary, but typically it takes about less than 2 weeks to complete.

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Qualcomm Software Engineer Interview Process

based on 25 interviews

5 Interview rounds

  • Technical Round
  • HR Round - 1
  • Aptitude Test Round
  • HR Round - 2
  • Personal Interview1 Round
View more
Qualcomm Software Engineer Salary
based on 959 salaries
₹10 L/yr - ₹36 L/yr
176% more than the average Software Engineer Salary in India
View more details

Qualcomm Software Engineer Reviews and Ratings

based on 95 reviews

3.8/5

Rating in categories

3.4

Skill development

3.6

Work-life balance

4.0

Salary

3.7

Job security

3.6

Company culture

3.4

Promotions

3.3

Work satisfaction

Explore 95 Reviews and Ratings
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