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Lam Research Senior Software Engineer Interview Questions and Answers

Updated 15 Mar 2024

Lam Research Senior Software Engineer Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed in Sep 2023. There were 2 interview rounds.

Round 1 - Coding Test 

1 easy, 1 medium and 1 hard LC

Round 2 - Technical 

(1 Question)

  • Q1. 1. How will access files in a different server? 2. There are several files all containing similar key value pairs. The values differ in all files. How will you identify all the values that are same and ot...
  • Ans. 

    To access files in a different server, use protocols like FTP or SSH. To identify similar key value pairs in multiple files, compare values using a script or tool.

    • Use FTP or SSH protocols to access files in a different server

    • Write a script or use a tool to compare key value pairs in multiple files

    • Identify values that are the same and different across files

    • Example: Use Python script to read files and compare key value p

  • Answered by AI

Interview questions from similar companies

Interview experience
2
Poor
Difficulty level
Hard
Process Duration
2-4 weeks
Result
No response

I applied via Recruitment Consulltant and was interviewed in Apr 2024. There was 1 interview round.

Round 1 - Coding Test 

It was hard and got tons of ds qs

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed before Aug 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
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
Round 2 - Coding Test 

Problem would be given to solve

Round 3 - Technical 

(2 Questions)

  • Q1. Questions will be based on their the first round
  • Q2. Questions will be from their projects
Round 4 - HR 

(1 Question)

  • Q1. Behavioral questions
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. General behavioral and situational questions about team members
Round 2 - Technical 

(1 Question)

  • Q1. Identify if the number is positive, negative or zero
  • Ans. 

    Identify if a number is positive, negative, or zero

    • Check if the number is greater than 0 to determine if it is positive

    • Check if the number is less than 0 to determine if it is negative

    • If the number is neither greater nor less than 0, it is zero

  • Answered by AI

I applied via LinkedIn and was interviewed in Jun 2021. There was 1 interview round.

Interview Questionnaire 

6 Questions

  • Q1. References vs pointers
  • Ans. 

    References and pointers are both used to refer to memory locations, but references cannot be null and cannot be reseated.

    • Pointers can be null or uninitialized

    • Pointers can be reseated to point to a different memory location

    • References are automatically dereferenced

    • References cannot be used with arrays

    • Pointers can be used with arrays

  • Answered by AI
  • Q2. Where is it necessary to use references
  • Ans. 

    References are necessary when passing large objects to functions or when returning objects from functions.

    • When passing large objects to functions

    • When returning objects from functions

    • When working with complex data structures

    • When implementing operator overloading

    • When working with polymorphism

  • Answered by AI
  • Q3. Const pointers
  • Q4. Where to declare const pointers
  • Ans. 

    Const pointers should be declared in the same scope as the variable they point to.

    • Declaring const pointers in the same scope as the variable they point to ensures that the pointer cannot be used to modify the variable.

    • If the pointer is only used within a function, it should be declared within that function.

    • If the pointer is used across multiple functions, it should be declared in a header file or at the top of the sour...

  • Answered by AI
  • Q5. Copy constructor with pointers
  • Ans. 

    Copy constructor with pointers creates a new object by copying the values of the existing object's pointers.

    • Copy constructor is used to create a new object from an existing object.

    • Pointers in the new object point to the same memory locations as the original object.

    • Deep copy should be used to avoid shallow copy issues.

  • Answered by AI
  • Q6. New vs malloc
  • Ans. 

    new and malloc are used for dynamic memory allocation in C++ and C respectively.

    • new is an operator in C++ while malloc is a function in C.

    • new automatically calls the constructor while malloc does not.

    • new returns a pointer to the object while malloc returns a void pointer.

    • new throws an exception if allocation fails while malloc returns NULL.

    • new can be overloaded while malloc cannot be.

    • new and delete are used together wh

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well OOPS fundamentals

Skills evaluated in this interview

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 Interview Questions & Answers

Intel user image Niranjhana Narayanan

posted on 4 Dec 2016

I applied via Campus Placement and was interviewed in Dec 2016. There were 5 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Why UDP and not TCP in project
  • Ans. 

    UDP is preferred over TCP in this project due to its low latency and lightweight nature.

    • UDP is a connectionless protocol, which means it does not establish a direct connection between the sender and receiver.

    • UDP is faster than TCP as it does not have the overhead of establishing and maintaining a connection.

    • UDP is suitable for applications where real-time data transmission is crucial, such as video streaming or online ...

  • Answered by AI
  • Q2. How would you clear the 7th bit in a 32 bit register
  • Ans. 

    To clear the 7th bit in a 32-bit register, perform a bitwise AND operation with a mask that has all bits set to 1 except the 7th bit.

    • Create a mask with the 7th bit set to 0 and all other bits set to 1

    • Perform a bitwise AND operation between the register and the mask

    • Store the result back in the register

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: Questions were based on C concepts, given piece of code, find error, output, etc then data structures, bit manipulation, a few aptitude questions were also there (around 5-7).
Tips: Practice aptitude, C, data structures (geeksforgeeks.org is a good source).
Duration: 1 hour
Total Questions: 30

Round: Technical + HR Interview
Experience: I was asked to explain project in detail, I had done projects on embedded, so was asked about that, details like what fields did you use in that structure, why this implementation and not some related other. Memory management, network communications, operating systems. Then questions on C concepts like memory allocation, function pointers, then data structures like linked lists, then bit manipulation in registers. Questions from electrical coursework. Then later, why higher studies, would you still go for higher studies if you had a good job at a company, why etc.
Tips: Be thorough with C (know your Kernighan & Ritchie) and be prepared to go into details about your projects.

Skills: C, Data Structures, Coursework Understanding, Project And Internship
College Name: IIT Madras

Skills evaluated in this interview

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

I was interviewed in Nov 2016.

Interview Questionnaire 

8 Questions

  • Q1. A random number will be given as input to system,write a program to detect its data type(int or float ) without using size of function
  • Q2. General hr questions
  • Q3. Once again general hr interview questions
  • Q4. 1.given a large rectangle
  • Ans. 

    Need more context. What needs to be done with the large rectangle?

    • What are the dimensions of the rectangle?

    • Is it a 2D or 3D object?

    • What is the context of the problem?

    • Are there any constraints or limitations?

    • What tools or programming languages can be used?

  • Answered by AI
  • Q5. You will be given dimensions of a bigger rectangle and smaller rectangle,derive a formula to get how many smaller rectangles fit into the bigger rectangle
  • Ans. 

    Derive a formula to determine how many smaller rectangles fit into a bigger rectangle given their dimensions.

    • Calculate the number of times the smaller rectangle can fit into the bigger rectangle horizontally and vertically

    • Divide the width of the bigger rectangle by the width of the smaller rectangle to get the horizontal count

    • Divide the height of the bigger rectangle by the height of the smaller rectangle to get the ve...

  • Answered by AI
  • Q6. How many points are required to draw a rectangle
  • Ans. 

    At least 4 points are required to draw a rectangle.

    • A rectangle has 4 sides and 4 corners, so at least 4 points are needed to define those corners.

    • The points must be arranged in a specific order to form a closed shape with 4 sides.

    • Additional points can be used to add details or modify the shape of the rectangle.

    • The number of points required may vary depending on the software or tool used to draw the rectangle.

  • Answered by AI
  • Q7. What will be the new coordinates of a rectangle points if rectangle length and breadth is scaled and write a program to calculate the coordinates of corner points of scaled rectangle
  • Ans. 

    Answering how to calculate new coordinates of a scaled rectangle and providing a program for it.

    • To calculate new coordinates, multiply the original coordinates by the scaling factor

    • Scaling factor can be calculated by dividing the new length/breadth by the original length/breadth

    • Program can take input of original coordinates, scaling factor, and output new coordinates

    • Example: Original coordinates: (0,0), (0,5), (5,5), (...

  • Answered by AI
  • Q8. Lastly a puzzle: i dont remember the question

Interview Preparation Tips

Round: Test
Experience: The test had three sections:
1.aptitude:It was like any other aptitude test,all it takes is a bit of practice to crack all the questions
2.C programming:Basics of c were asked,outputs of some programs,u have to be thorough with concepts of c
3.Electronics:The company hired for both profiles: 1. PDK:software
and 2.Logic library:hardware,so this electronics section was also there,questions are mostly Network analysis,cmos logic,digital logic,vlsi etc
u should have good basics to get the electronics questions of course they are not very hard,but not too easy


Tips: practice aptitude,basics of c programming and also basics of electronics
Duration: 1 hour 30 minutes
Total Questions: 60

Round: Test
Experience: after 1st round i was shortlisted to this technical round,i was asked this question, i suggested that i will convert that number into a string and check whether string has a dot or not to check if it is float or int,the interviewer was not very impressed but was ok and asked few small questions and promoted me to next round

Tips: If u crack test with top marks,the technical rounds will be very easy,because the interviewers do not ask tough questions for people who cracked written test with high marks

Round: Technical Interview
Experience: tell me about yourself,strengths,weakness,three principles u follow in life,etc
Tips: This round depends on you,dont try to bluff something,they will know if u are bluffing,take a breath and speak up ur mind,be confident u can do it

Round: HR Interview
Experience: same questions,but this time less duration,not involving lengthy discussions, i think this round was just for double check

Round: HR Interview
Experience: After the hr round,only seven were shortlist,this interview round was very much easy and they checked my approach to the given problem,they were checking how well i am thinking adding complexities to the given problem
Tips: they did not check my programming ability,but just problem solving skills,so be good at aptitude,by practicing as much as you can

Round: Group Discussion
Experience: after technical interview,4 were shortlisted,so they went for gd round,it was general topic,which checks your general knowledge
Tips: Dont be nervous,just speak what ever you know,never mind language issues
Duration: 20 minutes

Skills: for pdk profile :programming
College Name: NIT Warangal

I was interviewed in Aug 2017.

Interview Preparation Tips

Round: Test
Duration: 1 hour 30 minutes
Total Questions: 60

Round: Technical Interview
Experience: Questions about DS , CN and basic resume

Round: Technical Interview
Experience: Questions about RT OS and memory mapping. And other operating system related questions.
Projects done so far.

Lam Research Interview FAQs

How many rounds are there in Lam Research Senior Software Engineer interview?
Lam Research interview process usually has 2 rounds. The most common rounds in the Lam Research interview process are Coding Test and Technical.
How to prepare for Lam Research Senior 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 Lam Research. The most common topics and skills that interviewers at Lam Research expect are Design Patterns, Food Technology, Multithreading, OOPS and Troubleshooting.

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Lam Research Senior Software Engineer Interview Process

based on 1 interview

Interview experience

4
  
Good
View more
Lam Research Senior Software Engineer Salary
based on 49 salaries
₹8.4 L/yr - ₹26 L/yr
30% more than the average Senior Software Engineer Salary in India
View more details

Lam Research Senior Software Engineer Reviews and Ratings

based on 6 reviews

2.3/5

Rating in categories

1.8

Skill development

2.4

Work-life balance

3.0

Salary

3.5

Job security

2.7

Company culture

2.5

Promotions

1.7

Work satisfaction

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