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3M Full Stack Developer Interview Questions and Answers

Updated 16 Jan 2025

3M Full Stack Developer Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

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

Round 1 - Technical 

(2 Questions)

  • Q1. Top frequent element
  • Q2. SQL query to remove duplicates
  • Ans. 

    Use SELECT DISTINCT to remove duplicates from a table in SQL.

    • Use SELECT DISTINCT to retrieve unique rows from a table.

    • For example, SELECT DISTINCT column_name FROM table_name;

    • Another way is to use GROUP BY with aggregate functions to remove duplicates.

    • For example, SELECT column_name, COUNT(*) FROM table_name GROUP BY column_name;

  • Answered by AI

Interview questions from similar companies

Interview Questionnaire 

1 Question

  • Q1. C++ Basic , malloc, calloc

I applied via Referral and was interviewed in Mar 2021. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. Do you know anything about cloud computing?
  • Ans. 

    Yes, cloud computing refers to the delivery of computing services over the internet.

    • Cloud computing allows users to access data and applications from anywhere with an internet connection.

    • It offers scalability, flexibility, and cost-effectiveness compared to traditional on-premises computing.

    • Examples of cloud computing services include Amazon Web Services, Microsoft Azure, and Google Cloud Platform.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Very chill interview on the basis of profile.
Learn about new technology like cloud etc.

Skills evaluated in this interview

I applied via Recruitment Consultant and was interviewed in Nov 2019. There were 5 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. Basic C++, and Data structure focus on pointers and virtual function, vptr, vtable
  • Q2. Prepare about ur current project and process followed for entire development process thoroughly
  • Q3. Prepare common tools like. Linux, git, gdb
  • Q4. Prepare basics of data structures, OOPS, design patterns used

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep a steady approach, focus more and more on basics and working principle of concepts

Interview Questionnaire 

1 Question

  • Q1. Basic OOPs concepts

Interview Preparation Tips

Interview preparation tips for other job seekers - Be strong in basics.
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 - Technical 

(2 Questions)

  • Q1. Questions on full stack Devlopment
  • Q2. Questions asked on React,Nodejs
Round 3 - Coding Test 

There will be machin test on best on MERN stack

Interview Preparation Tips

Interview preparation tips for other job seekers - Need to have hands on experience on MERN and you have to give machine test on basis of that
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed before Sep 2022. 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 - Technical 

(1 Question)

  • Q1. Asp.net, C#, Coding questions
Round 3 - HR 

(1 Question)

  • Q1. Salary discussion

Interview Preparation Tips

Interview preparation tips for other job seekers - NA
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via unstop and was interviewed before Oct 2023. There were 3 interview rounds.

Round 1 - Coding Test 

It was medium to difficult level test

Round 2 - Technical 

(2 Questions)

  • Q1. Questions about core subjects like oops pillars
  • Q2. Questions about projects, technologies used
Round 3 - HR 

(2 Questions)

  • Q1. Why do you want to join this
  • Q2. Your previous experience and questions about your background
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Apr 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

30 min 30 ques and gaming ques

Round 2 - Technical 

(2 Questions)

  • Q1. What is ML and AI in your project?
  • Ans. 

    ML and AI are used in our project to analyze user behavior and provide personalized recommendations.

    • ML algorithms are used to analyze user data and predict user preferences.

    • AI is used to provide personalized recommendations based on the analysis of user behavior.

    • Examples include recommendation systems for e-commerce websites and personalized content suggestions on streaming platforms.

  • Answered by AI
  • Q2. What is lagging concept and more?
  • Ans. 

    Lagging concept refers to a concept or idea that is behind or not up to date compared to current standards or practices.

    • Refers to outdated technology or methods in software development

    • Can lead to inefficiencies, bugs, or security vulnerabilities

    • Examples include using deprecated libraries or not following best practices for coding

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Schneider Electric Software Developer interview:
  • HTML
Interview preparation tips for other job seekers - you can acheive if u want to . Just keep trying

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Company Website and was interviewed before Sep 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 Resume tips
Round 2 - Aptitude Test 

The normal way of aptitude tests is like all the other companies. Some questions were a bit challenging also, but if you do the basics right then that's enough

Round 3 - Coding Test 

Basics Basics Basics, everything is concerned with basics, they don't expect you to solve quantum mechanic equations. Just struggle a bit in DSA and clear some logical reasoning and some general knowledge is perfect!

Round 4 - HR 

(5 Questions)

  • Q1. This round is for getting you onboard, you get offered a package and need to complete some formalities that's it.
  • Q2. Where do you see yourself in the next 3 - 5 years?
  • Q3. What do you want to become in the coming future?
  • Q4. What are your hobbies?
  • Q5. What made you join siemens?

Interview Preparation Tips

Interview preparation tips for other job seekers - Just prepare best, create your resume top-notch, add only what you know best, and add relevant details only, if your resume gets selected then kaboom, you are in. now you are only expected to know best what is written in your resume and nothing extra-ordinary. Good Luck!
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3M Interview FAQs

How many rounds are there in 3M Full Stack Developer interview?
3M interview process usually has 1 rounds. The most common rounds in the 3M interview process are Technical.
What are the top questions asked in 3M Full Stack Developer interview?

Some of the top questions asked at the 3M Full Stack Developer interview -

  1. SQL query to remove duplica...read more
  2. Top frequent elem...read more

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3M Full Stack Developer Interview Process

based on 1 interview

Interview experience

5
  
Excellent
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