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McKinsey & Company Junior Engineer Interview Questions and Answers

Updated 13 Oct 2022

McKinsey & Company Junior Engineer Interview Experiences

1 interview found

I applied via Campus Placement and was interviewed in Sep 2022. There were 4 interview rounds.

Round 1 - Coding Test 

There were 2 DSA questions that we had to solve on HackerRank. One of them was a medium dynamic programming question - minimum insertions required to make a string palindrome. The other was a fairly easy question that required knowledge of permutations and combinations. We just had to figure out a maths formula given the situation.
1st round also involved a logical game that we had to play. We were scored based on coding + game and shortlisted for next round.

Round 2 - Coding Test 

An interviewer joined me on zoom meet and sent a HackerRank link to a question. It was a medium dynamic programming/backtracking question. I solved it but only half the test cases ran while others threw TLE as my recursive code took exponential time.

Round 3 - One-on-one 

(7 Questions)

  • Q1. Explain what happens after you search a url on your browser. (Had to explain the whole DNS working)
  • Q2. Explain how video calling works. (Had to explain the whole OSI model)
  • Q3. Asked possible causes of ClassNotFoundException and MemoryOutOfBoundException
  • Q4. Asked 2 or 3 case study questions like designing a car infotainment system.
  • Q5. Asked about the usefulness of OOPS.
  • Q6. Asked how Java code compiles/runs(had to explain about creation of class file, JVM etc)
  • Q7. Asked about working of https.
Round 4 - HR 

(4 Questions)

  • Q1. Explain few challenges that you faced during a project/internship.
  • Ans. 

    During my internship, I faced challenges related to communication, time management, and technical skills.

    • Communication challenges: Difficulty in effectively conveying ideas and understanding instructions.

    • Time management challenges: Struggling to prioritize tasks and meet deadlines.

    • Technical skills challenges: Learning new technologies and troubleshooting issues.

    • Example for communication challenge: Working in a team whe...

  • Answered by AI
  • Q2. Where do you see yourself in 5 years?
  • Ans. 

    In 5 years, I see myself as a Senior Engineer, leading a team and working on complex projects.

    • I envision myself taking on more responsibilities and leading a team of engineers.

    • I hope to have gained expertise in my field and be recognized as a subject matter expert.

    • I aim to work on challenging projects that require problem-solving and innovation.

    • I plan to continue learning and staying updated with the latest technologie...

  • Answered by AI
  • Q3. Explain a project that you did
  • Ans. 

    Developed a mobile app for tracking daily water intake

    • Used React Native framework for cross-platform development

    • Implemented a user-friendly interface with intuitive design

    • Integrated a database to store and retrieve user data

    • Implemented push notifications to remind users to drink water

    • Conducted testing and debugging to ensure app functionality

  • Answered by AI
  • Q4. Tell me about a conflict that you may have faced during a project/internship
  • Ans. 

    During my internship, I faced a conflict regarding the allocation of resources for a project.

    • Conflict arose when team members disagreed on the distribution of resources.

    • I suggested a fair and balanced approach to allocate resources based on individual strengths and project requirements.

    • We held a team meeting to discuss and resolve the conflict.

    • Through open communication and compromise, we reached a consensus on resourc...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for McKinsey & Company Junior Engineer interview:
  • Data Structures and Algorithms
  • Computer Networking
  • System Design
  • Operating Systems
  • OOPS
Interview preparation tips for other job seekers - There's limited time for the live coding round infront of the interviewer(around 20-30 mints). Try to complete the brute force algorithm first bfr trying for optimizations.

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Interview questions from similar companies

Interview Questionnaire 

1 Question

  • Q1. Spring and SpringBoot

Interview Questionnaire 

1 Question

  • Q1. Basics questions on SAP

Interview Preparation Tips

Interview preparation tips for other job seekers - Recomend, not to join this company. what they promise and what they provide is totally irrelevant. No ethics.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. SQL databse,oops
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - HR 

(2 Questions)

  • Q1. Tell me something about your self?
  • Ans. 

    I am a dedicated and experienced Senior Engineer with a strong background in project management and problem-solving.

    • Over 10 years of experience in engineering field

    • Expertise in project management and team leadership

    • Strong problem-solving skills and attention to detail

    • Proficient in various engineering software and tools

    • Excellent communication and interpersonal skills

  • Answered by AI
  • Q2. Why deloitte? and Us
  • Ans. 

    Deloitte is a global leader in consulting and technology services, offering exciting opportunities for growth and innovation.

    • Deloitte is a prestigious global consulting firm known for its innovative solutions and industry expertise

    • Deloitte offers a wide range of opportunities for career growth and development

    • Deloitte values diversity and inclusion, creating a supportive and collaborative work environment

    • Deloitte's focu...

  • Answered by AI

Interview Questionnaire 

2 Questions

  • Q1. 1.About Clear Cover....?
  • Q2. 2. Checking point in Beam and Column....?
  • Ans. 

    Checking points in beam and column are critical for ensuring structural integrity.

    • Checking for cracks or deformations

    • Ensuring proper alignment and levelness

    • Verifying adequate reinforcement

    • Checking for proper bearing and connection details

    • Using non-destructive testing methods

    • Following applicable codes and standards

  • Answered by AI

Senior Engineer Interview Questions & Answers

IBM user image Manali Latkar

posted on 30 May 2024

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Naukri.com and was interviewed in Apr 2024. There were 2 interview rounds.

Round 1 - Coding Test 

3 dsa questions and various golang concepts and 1 concurrency question

Round 2 - Technical 

(1 Question)

  • Q1. System design questions

I applied via Naukri.com and was interviewed in Dec 2021. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. Which Domin could you need

Interview Preparation Tips

Interview preparation tips for other job seekers - Only core and adavance in python
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I was interviewed in Sep 2024.

Round 1 - Coding Test 

Hackerrank coding & techinical interview test

Interview Preparation Tips

Interview preparation tips for other job seekers - Learn core java, spring boot & Microservices concept well.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via LinkedIn and was interviewed in Jun 2024. There was 1 interview round.

Round 1 - Aptitude Test 

Basic aptitude on java application and framework

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McKinsey & Company Interview FAQs

How many rounds are there in McKinsey & Company Junior Engineer interview?
McKinsey & Company interview process usually has 5 rounds. The most common rounds in the McKinsey & Company interview process are Coding Test, Resume Shortlist and One-on-one Round.
What are the top questions asked in McKinsey & Company Junior Engineer interview?

Some of the top questions asked at the McKinsey & Company Junior Engineer interview -

  1. Explain what happens after you search a url on your browser. (Had to explain th...read more
  2. Explain how video calling works. (Had to explain the whole OSI mod...read more
  3. Asked how Java code compiles/runs(had to explain about creation of class file, ...read more

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