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LinkedIn Software Engineer Interview Questions and Answers
LinkedIn Software Engineer Interview Experiences
6 interviews found
Interview Questionnaire
4 Questions
- Q1. You are given a large array of n bits. Each bit is initially 0. You perform several operations of the type
- Ans.
Solution to performing operations on a large array of bits.
Use bitwise operators to perform operations on individual bits
Use a loop to iterate through the array and perform the operations
Ensure that the array is large enough to accommodate all the bits
Consider using a data structure like a bitset for efficient bit manipulation
- Q2. Questions on Network programming
- Q3. Questions on array,heap and binary trees
- Q4. Round was both HR+Technical
Interview Preparation Tips
Experience: Questions can be found here:
-----/
Tips: Try to solve all 3.
Duration: 60 minutes
Total Questions: 3
Round: Technical Interview
Experience: First discuss the solution and then paper-code it.
Tips: Try to code without mistakes.
Round: Technical Interview
Experience: First, I was asked to discuss my project based on networking and then I was given a question on network programming
Tips: Pay attention on discussion
Round: Technical Interview
Experience: Provide the optimised solution and code it without any mistakes.
Round: HR Interview
Experience: Why linkedin?
What changes will you make in 6 months?
Internship project: Discussion and lot of common questions on that.
Basic Questions of C++ and Java
Skills: Data Structure, Core courses understanding, Algorithms
College Name: IIT GUWHATI
Skills evaluated in this interview
(2 Questions)
- Q1. Find the leaves of the tree.
- Ans.
Leaves of a tree are the nodes with no children in a tree data structure.
Traverse the tree and identify nodes with no children.
Use depth-first search or breadth-first search algorithms to find leaves.
Examples: In a binary tree, leaves are nodes with no left or right child.
In a general tree, leaves are nodes with no children in their child list.
- Q2. Find the LCA of tree.
- Ans.
The Lowest Common Ancestor (LCA) of a tree is the shared ancestor of two nodes farthest from the root.
Start from the root and traverse the tree to find the paths from the root to the two nodes.
Compare the paths to find the last common node between them, which is the LCA.
If one of the nodes is an ancestor of the other, then the ancestor node is the LCA.
(2 Questions)
- Q1. What projects you worked upon?
- Ans.
I have worked on projects involving web development, mobile app development, and data analysis.
Developed a web application using React and Node.js for a client in the e-commerce industry
Created a mobile app using Flutter for a startup in the healthcare sector
Performed data analysis on customer behavior using Python and SQL for a marketing company
- Q2. What internships you did?
- Ans.
I completed internships at ABC Company and XYZ Company during my undergraduate studies.
Interned at ABC Company working on web development projects
Interned at XYZ Company assisting with software testing and quality assurance
Gained hands-on experience in coding, debugging, and problem-solving
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Referral and was interviewed in May 2024. There was 1 interview round.
DSA has 2-3 rounds depending on the team that is hiring. coding and algorithms 1 and coding and algorithms 2 and concurrency.
Topics for coding and algorithms are into Tress, Graphs
Concurrency round is all about implementing base modules
Kanchan Shirke
Selected
I applied via Referral and was interviewed before Oct 2022. There were 4 interview rounds.
1 hour simple questions based on DSA
(2 Questions)
- Q1. About your prior experience
- Q2. Challenging task at your workplace
(1 Question)
- Q1. Just normal discussion
LinkedIn interview questions for designations
Interview Preparation Tips
College Name: NIT SURATHKAL
Interview Preparation Tips
Experience: In the coding round there were 3 questions to be solved in about 3 hrs.
Round: HR Interview
Experience: Expect the usual crazy questions like "Why LinkedIn?" and if you are already placed, be ready to give a proper justification for "Why LinkedIn and not XYZ?" so on. Be cool, you need not be accurate. Be well prepared with your resume and expect questions from them.
Tips: For the interview, just be confident and have a good resume ready with you.
Round: Other Interview
Experience: Coding Interview:
Simple coding questions. Make sure you first explain the logic to them and then you may be asked to write the code for it on the board using any language of your choice. Syntax is not a big deal, but don't make any logical errors. They are very friendly and may suggest certain solutions of their own. Make sure you can grasp them quickly. Find faults in your own code before they find it. Always try to give the best optimal solution. In case you are unable to do so then suggest possible improvements.
Round: Other Interview
Experience: Design Interview:
Some people may find this round a bit uneasy. But this round tests how good you are at designing solutions to problems. Most of the candidates were asked to build an online gaming system. And then they keep adding extra constraints and ideas and see if you can integrate them to your design. Database knowledge may be tested. They may also ask questions pertaining to you projects listed in your resume.
General Tips: An updated LinkedIn account with decent connections. ;)
Skill Tips: Be very strong with your coding ability. Whenever you code, do follow some standard procedures and make the code look simple and structured. Whenever you solve a coding question make sure you answer it completely for all the test cases. Partial results will only indicate that there is something wrong with the logic. Try to solve a complete question rather than multiple questions with partial results.
College Name: NIT SURATHKAL
Top trending discussions
Interview questions from similar companies
test
Selected
I was interviewed in Jan 2025.
(20 Questions)
- Q1. Explain the difference between ArrayList and LinkedList in Java. When would you choose one over the other?
- Q2. What are the advantages and disadvantages of using Java’s synchronized keyword for thread synchronization? Can you explain how the ReentrantLock compares to synchronized?
- Q3. What is the difference between == and .equals() in Java? When should each be used, and what issues can arise from improper usage?
- Q4. How does the Java garbage collector work? Can you describe the different types of garbage collection algorithms available in Java?
- Q5. What are the main features of Java 8? Can you explain how lambdas and the Stream API have changed the way Java applications are written?
- Q6. Describe the differences between checked and unchecked exceptions in Java. Provide examples and explain how to handle them properly.
- Q7. What is the Java Memory Model, and how does it affect multithreading and synchronization? How does volatile help ensure memory visibility?
- Q8. Can you explain the difference between method overloading and method overriding in Java? Provide examples where each should be used.
- Q9. What are functional interfaces in Java? How do they work with lambda expressions? Provide an example of a custom functional interface.
- Q10. What is a Java Stream, and how does it differ from an Iterator? Explain how Streams can be used to process collections efficiently.
- Q11. Explain the concept of immutability in Java. How does the String class achieve immutability, and what are the advantages of immutable objects?
- Q12. What is the difference between final, finally, and finalize in Java? Provide examples to illustrate their usage.
- Q13. Explain the Singleton design pattern in Java. How can you implement it safely to ensure thread safety?
- Q14. What are Java annotations, and how are they used in frameworks like Spring? Explain the difference between built-in and custom annotations.
- Q15. How do Java Streams handle parallel processing? What are the potential pitfalls of using parallel streams, and how can they be mitigated?
- Q16. Explain the difference between ArrayList and LinkedList in Java. ArrayList is implemented as a dynamic array, while LinkedList is a doubly linked list. ArrayList provides fast random access (O(1) complexi...
- Q17. What are the advantages and disadvantages of using Java’s synchronized keyword for thread synchronization? The synchronized keyword ensures that only one thread can access a block of code at a time. It pr...
- Q18. What is the difference between == and .equals() in Java? == checks for reference equality, meaning it compares memory addresses. equals() checks for value equality, which can be overridden in user-defined...
- Q19. How does the Java garbage collector work? Garbage collection in Java automatically reclaims memory occupied by unused objects. The JVM has different types of GC algorithms, including Serial, Parallel, CMS...
- Q20. What are the main features of Java 8? Java 8 introduced lambda expressions, enabling functional-style programming. The Stream API allows efficient data processing with map, filter, and reduce operations. ...
(4 Questions)
- Q1. Data structure and algorithm
- Q2. Some tricky logical question
- Q3. Stack and queue
- Q4. Some basic question about system Design
2021 01220
I applied via Campus Placement
3 questions of dsa
1 of api
(1 Question)
- Q1. Graph based question to find the shortest path between 2 prime numbers by changing 1 digit at once and obtained number should be prime too.
Interview Preparation Tips
For 2nd round there was low level design
But I couldn't get to the 2nd round
Vaishnavi Mishra
I applied via Referral and was interviewed in Jun 2024. There were 3 interview rounds.
Hackerrank Coding Test, Leetcode medium questions
HLD test, was asked to design an online coding platform like leetcode
(2 Questions)
- Q1. Most interesting project you have worked on
- Q2. How do you handle conflict at workplace
Interview Preparation Tips
- Prepare HLD well
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LinkedIn Interviews By Designations
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LinkedIn Software Engineer Interview Process
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Interview experience
Software Engineer Interview Questions from Similar Companies
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LinkedIn Software Engineer Reviews and Ratings
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