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Google Software Engineer Interview Questions, Process, and Tips

Updated 4 Mar 2025

Top Google Software Engineer Interview Questions and Answers

  • Q1. If your Wi-Fi router is not working then what you will do to fix it?
  • Q2. Which technical skills are required to program efficiently ?
  • Q3. 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 ...read more
View all 43 questions

Google Software Engineer Interview Experiences

98 interviews found

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. LRU cache implementation in most optimised way O(1)
  • Ans. 

    Use a combination of hashmap and doubly linked list to achieve O(1) time complexity for LRU cache implementation.

    • Use a hashmap to store key-value pairs for quick access.

    • Use a doubly linked list to keep track of the most recently used items.

    • Whenever an item is accessed, move it to the front of the linked list.

    • When the cache is full, remove the least recently used item from the end of the linked list.

  • Answered by AI

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

String manipulation in c

Round 2 - Coding Test 

Low level c firmware. Queues and memory mapping.

Round 3 - Leadership 

(2 Questions)

  • Q1. Ambiguity handling
  • Q2. Any accomplishment
Round 4 - Domain 

(2 Questions)

  • Q1. Specific to domain knowledge
  • Q2. Performance for server
  • Ans. 

    Optimizing server performance involves analyzing bottlenecks, improving code efficiency, and scaling resources.

    • Identify and address bottlenecks in the server infrastructure.

    • Optimize code for efficiency by reducing unnecessary operations and improving algorithms.

    • Scale resources such as CPU, memory, and storage based on workload demands.

    • Implement caching mechanisms to reduce database queries and improve response times.

  • Answered by AI

Skills evaluated in this interview

Software Engineer Interview Questions Asked at Other Companies

asked in Qualcomm
Q1. Bridge and torch problem : Four people come to a river in the nig ... read more
asked in Capgemini
Q2. In a dark room,there is a box of 18 white and 5 black gloves. You ... read more
asked in TCS
Q3. Find the Duplicate Number Problem Statement Given an integer arra ... read more
Q4. Tell me something about yourself. Define encapsulation. What is i ... read more
asked in Paytm
Q5. Puzzle : 100 people are standing in a circle .each one is allowed ... read more
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
More than 8 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Jun 2023. There were 4 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Max Heap based variation question.
Round 2 - Coding Test 

I was asked about Graphs and cycle detection related problem

Round 3 - Coding Test 

They asked me about Binary Search, a more complex version of binary search.

Round 4 - Coding Test 

They asked me about trees in this round, a recursive algorithm was expected

Interview Preparation Tips

Topics to prepare for Google Software Engineer interview:
  • Data Structures
  • Algorithms
  • Coding
Interview preparation tips for other job seekers - Google has reduced their difficulty by a lot recently. They do not go into super hard problems anymore like last decade. Be good with your fundamentals and DSA and expect medium level questions. Ask questions to interviewer and do not make mistakes in your code. They tried to downlevel me as I interviewed for L4, there were additional interview rounds that I had to go through as well.
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

4 coding questions and some aptitude questions

Google interview questions for designations

 Senior Software Engineer

 (18)

 Software Development Engineer

 (11)

 Software Engineer III

 (6)

 Software Engineer Intern

 (3)

 Software Engineer Trainee

 (2)

 Junior Software Engineer

 (1)

 Embedded Software Engineer

 (1)

 Associate Software Engineer

 (1)

Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
4-6 weeks
Result
Not Selected

I applied via Company Website and was interviewed in Jan 2024. There were 2 interview rounds.

Round 1 - HR 

(1 Question)

  • Q1. Asked me about my previous working experience
Round 2 - Coding Test 

Asked me DSA question.When u see it looks kinda leetcode medium but it leetcode hard definitely

Interview Preparation Tips

Interview preparation tips for other job seekers - Practice your DSA skills.

Get interview-ready with Top Google Interview Questions

Software Engineer Interview Questions & Answers

user image sahil jaiswal

posted on 28 Mar 2024

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. It was a leetcode question based on binary search, koko eating banana, wording of question was different, but it was the same question which was asked.
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Competitive coding questions from Graph and Tree were asked

Round 2 - HR 

(2 Questions)

  • Q1. Tell me about yourself
  • Q2. How do you conquer the high work pressure
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed before Apr 2023. There were 3 interview rounds.

Round 1 - Coding Test 

2 questions were asked. Major topics were Graphs and DP. Difficulty level : Leetcode Medium and Hard

Round 2 - Technical 

(1 Question)

  • Q1. Given a string of L, M, R, where L means turn to left, R means turn to right and M means take 1 step forward where you are directed. Now suppose you start from origin, and one letter in the string is wrong...
  • Ans. 

    The maximum distance that can be reached if one instruction in a string of L, M, R is wrong.

    • The maximum distance can be reached by following the correct instructions and then taking the opposite direction of the wrong instruction.

    • For example, if the string is 'LMRM', the correct path would be 'LMR' and then taking a step in the opposite direction of 'M'.

    • Calculate the distance by summing up the steps taken in the correc...

  • Answered by AI
Round 3 - Technical 

(1 Question)

  • Q1. Write the code to effectively manage a hospital system.

Interview Preparation Tips

Interview preparation tips for other job seekers - 1. Practice graphs/DP/Trees, etc
2. Learn a bit about system design, OOPs, and OS.
3. Try to solve 2 questions in the 45 min interview period. Don't hesitate to ask questions from the interviewer.

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Not Selected

I applied via Company Website and was interviewed in Sep 2023. There were 3 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 Resume tips
Round 2 - Coding Test 

4 round of coding, 2 in the morning, 2 in the afternoon. Each round is a single coding question. Difficulties are medium to hard.

Round 3 - One-on-one 

(1 Question)

  • Q1. Asked about Trie structure.

Interview Preparation Tips

Interview preparation tips for other job seekers - look for recent interview questions. it is possible you will see one or more that has recently been asked. Also spend a lot of time in leetcode. You will learn something anyway.
Interview experience
3
Average
Difficulty level
Hard
Process Duration
4-6 weeks
Result
Not Selected

I applied via Referral and was interviewed in Oct 2023. There were 2 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. In-depth DSA questions were asked
Round 2 - Coding Test 

It was a difficult coding tedt

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare yourself it is a difficult
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Google Interview FAQs

How many rounds are there in Google Software Engineer interview?
Google interview process usually has 2-3 rounds. The most common rounds in the Google interview process are Coding Test, Technical and HR.
How to prepare for Google 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 Google. The most common topics and skills that interviewers at Google expect are Recruitment, Networking, Data Structures, System Design and Artificial Intelligence.
What are the top questions asked in Google Software Engineer interview?

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

  1. If your Wi-Fi router is not working then what you will do to fix ...read more
  2. Which technical skills are required to program efficientl...read more
  3. Explain the difference between ArrayList and LinkedList in Java. ArrayList is i...read more
How long is the Google Software Engineer interview process?

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

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Google Software Engineer Interview Process

based on 101 interviews

4 Interview rounds

  • Coding Test Round - 1
  • Coding Test Round - 2
  • Technical Round
  • HR Round
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