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McKinsey & Company Junior Engineer Interview Questions and Answers
McKinsey & Company Junior Engineer Interview Experiences
1 interview found
Anonymous
I applied via Campus Placement and was interviewed in Sep 2022. There were 4 interview rounds.
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.
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.
(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.
(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...
- 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...
- 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
- 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...
Interview Preparation Tips
- Data Structures and Algorithms
- Computer Networking
- System Design
- Operating Systems
- OOPS
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Interview questions from similar companies
It was easy cognitive aptitude and reasoning qsns
Med-Hard problems given 1hr to solve for 2 qsns
(2 Questions)
- Q1. Explain one of the project that you are good at
- Ans.
Developed a mobile app for tracking daily water intake
Researched user needs and preferences for water intake tracking
Designed user-friendly interface for inputting water consumption
Implemented features like reminders and progress tracking
Tested app with focus groups for feedback and improvements
- Q2. What is your long term goal
- Ans.
My long term goal is to become a senior engineer in a reputable company and eventually move into a leadership role.
Continuously improve my technical skills and knowledge through training and certifications
Seek opportunities for mentorship and leadership roles within the company
Work on challenging projects to gain experience and expertise
Build a strong professional network within the industry
Eventually transition into a...
Interview Preparation Tips
Prithwindra Sarkar
I applied via Naukri.com and was interviewed in Sep 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Tell me about yourself
- Ans.
I am a dedicated and detail-oriented Junior Engineer with a passion for problem-solving and continuous learning.
Graduated with a degree in Engineering from XYZ University
Completed internships at ABC Company, gaining hands-on experience in project management
Proficient in CAD software and technical drawing
- Q2. Diagram of water treatment
- Ans.
Water treatment involves a series of processes to remove impurities and make water safe for consumption.
Water treatment typically involves processes such as coagulation, sedimentation, filtration, and disinfection.
Coagulation involves adding chemicals to water to make particles clump together for easier removal.
Sedimentation allows the larger particles to settle at the bottom of a tank.
Filtration involves passing water...
(2 Questions)
- Q1. Personal details
- Q2. Why you want to join
- Ans.
I want to join because I am passionate about engineering and eager to learn and grow in a dynamic environment.
Passionate about engineering
Eager to learn and grow
Excited about working in a dynamic environment
Interview Preparation Tips
Apptitude round mainly english
I applied via Campus Placement and was interviewed in Dec 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Basics of accounting
Interview Preparation Tips
I applied via Campus Placement
Initial test contained two coding questions
A case study was provided to group of 8 people
(3 Questions)
- Q1. C++ problem questions
- Q2. Sql queries and table manipulation questions
- Q3. Critical thinking question
I applied via Naukri.com and was interviewed in Sep 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Tell me about yourself
- Ans.
I am a dedicated and detail-oriented Junior Engineer with a passion for problem-solving and continuous learning.
Graduated with a degree in Engineering from XYZ University
Completed internships at ABC Company, gaining hands-on experience in project management
Proficient in CAD software and technical drawing
- Q2. Diagram of water treatment
- Ans.
Water treatment involves a series of processes to remove impurities and make water safe for consumption.
Water treatment typically involves processes such as coagulation, sedimentation, filtration, and disinfection.
Coagulation involves adding chemicals to water to make particles clump together for easier removal.
Sedimentation allows the larger particles to settle at the bottom of a tank.
Filtration involves passing water...
(2 Questions)
- Q1. Personal details
- Q2. Why you want to join
- Ans.
I want to join because I am passionate about engineering and eager to learn and grow in a dynamic environment.
Passionate about engineering
Eager to learn and grow
Excited about working in a dynamic environment
Interview Preparation Tips
Apptitude round mainly english
I applied via Deloitte and was interviewed in Jan 2023. There were 3 interview rounds.
In first round they will ask a pseudocode basics.
In second round they ask a question in coding segment in C,C++, Python
Interview Preparation Tips
It was easy cognitive aptitude and reasoning qsns
Med-Hard problems given 1hr to solve for 2 qsns
(2 Questions)
- Q1. Explain one of the project that you are good at
- Ans.
Developed a mobile app for tracking daily water intake
Researched user needs and preferences for water intake tracking
Designed user-friendly interface for inputting water consumption
Implemented features like reminders and progress tracking
Tested app with focus groups for feedback and improvements
- Q2. What is your long term goal
- Ans.
My long term goal is to become a senior engineer in a reputable company and eventually move into a leadership role.
Continuously improve my technical skills and knowledge through training and certifications
Seek opportunities for mentorship and leadership roles within the company
Work on challenging projects to gain experience and expertise
Build a strong professional network within the industry
Eventually transition into a...
Interview Preparation Tips
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