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PubMatic Big Data Engineer Interview Questions, Process, and Tips
PubMatic Big Data Engineer Interview Experiences
1 interview found
Anonymous
Selected
I applied via Approached by Company and was interviewed in Jul 2024. There was 1 interview round.
(5 Questions)
- Q1. Pyspark optimizations and theoretical questions
- Q2. Find the number of pairs which sum to target.
- Ans.
Count pairs in an array that sum up to a target value.
Iterate through the array and store the frequency of each element in a hashmap.
For each element, check if the difference between the target and the element exists in the hashmap.
Increment the count of pairs if the difference is found in the hashmap.
- Q3. Binary search moderate problems of array ones increasing then decreasing
- Ans.
Binary search can be used to solve moderate problems of arrays that are first increasing and then decreasing.
Use binary search to find the peak element in the array, which marks the transition from increasing to decreasing.
Divide the array into two parts based on the peak element and apply binary search on each part separately.
Handle edge cases such as when the array is strictly increasing or strictly decreasing.
Exampl
- Q4. System design for a web surfing utility
- Ans.
Design a system for a web surfing utility
Use a web crawler to gather data from websites
Implement a search engine to retrieve relevant information
Utilize a recommendation system to suggest related content
Include user authentication and personalized settings
Ensure scalability and performance for handling large amounts of data
- Q5. Smallest subarray having given target sum
- Ans.
Find the smallest subarray in an array that has a given target sum.
Use a sliding window approach to find the subarray with the target sum.
Keep track of the current sum of elements in the window and adjust the window size accordingly.
Start with a window of size 1 and expand it until the sum is greater than or equal to the target sum.
Shrink the window from the left side while updating the smallest subarray length until t
Skills evaluated in this interview
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Software Engineer Interview Questions & Answers
Altair Engineering
Sameer Mandge
posted on 31 Aug 2015
Interview Questionnaire
6 Questions
- Q1. Tell something about yourself
- Ans.
I am a software engineer with 5 years of experience in developing web applications using Java and JavaScript.
I have a Bachelor's degree in Computer Science.
I am proficient in Spring Framework and AngularJS.
I have worked on projects involving RESTful APIs and microservices architecture.
I am a quick learner and enjoy working in a team environment.
- Q2. Why do you want to join this company?
- Ans.
I am impressed with the company's innovative approach and commitment to excellence.
I have researched the company and its products extensively and am excited about the potential for growth and development.
I am impressed with the company's reputation for innovation and cutting-edge technology.
I believe that the company's commitment to excellence aligns with my own values and goals.
I am excited about the opportunity to wo...
- Q3. What are your future plans?
- Ans.
My future plans include continuous learning, honing my skills, and contributing to the growth of the company.
I plan to attend relevant conferences and workshops to stay updated with the latest technologies.
I want to work on challenging projects that will help me improve my skills.
I aim to become a valuable asset to the company by contributing to its growth and success.
I plan to mentor and guide junior developers to hel
- Q4. Mathematics
- Q5. Programming
- Q6. Logic
Interview Preparation Tips
Experience: It was a bit lengthy and I wasn't able to solve all the questions, but the rest was accurately completed by me.
Tips: One needs to know basic programming and logic. The rest is doable. Pay attention to time and the accuracy of your answers.
Duration: 120 minutes
Total Questions: 50
Round: Group Discussion
Experience: A few points were given to us and we had to proceed from there. I gave new ideas as well as new points of view on the already presented ideas. I also encouraged others to participate.
Tips: Don't be too quiet/passive or too loud/active. Let others also talk and don't talk about the same points again & again.
Duration: 15 minutes
Round: HR Interview
Experience: It was a good interview. I felt at ease and myself while talking about me. The CTO of the company was conducting it.
Tips: See the direction in which the interview is going and frame your answers accordingly. Tell them what they want to hear, but don't lie.
Round: Technical Interview
Experience: It was a telephonic interview, and the HR team present there was guiding me through it. The questions were easy.
Tips: Be confident while answering the questions. Don't think too much on it, and answer appropriately. Be clear and concise.
General Tips: As I said earlier as well, be yourself and be confident.
Skill Tips: Be adequately prepared on what you prepare for; know the ins and outs of the company you are sitting in for; be confident and clear on what you speak.
Skills: Programming, Logic Building, Common Aptitude, Personality
College Name: IIT Bombay
Motivation: I wanted to do programming which was also in the engineering domain. Hence Altair came as the perfect fit for me.
Funny Moments: I was not able to listen properly to the telephonic interview, but the CTO was impressed with me in the HR interview so he happily guided me through. I also found out that one of the seniors interviewing me was from the same place as that of mine, so we had a small discussion there as well. I felt at ease hence.
Software Engineer Interview Questions & Answers
Altair Engineering
Pranay Kumar
posted on 10 Mar 2015
Interview Preparation Tips
Experience: My experience with IITB racing for more than 2 years helped me with this process. Additionally, my work as an electronic differential engineer which required development of a detailed vehicle model was more closer to the
College Name: IIT BOMBAY
Interview Preparation Tips
Tips: Screening test is done online and contains objective questions..
Total Questions: Online
Round: Group Discussion
Experience: Shortlisted candidates were divided in groups of 9-10 students for group discussion. GD lasted for about 40 min.
Duration: 40 minutes
Round: Interview
Experience: Technical interview was of about 35 min. There was no hr interview. Questions were related to the projects that the candidate performed during his stay at IIT Roorkee. Two puzzles were also asked. Other questions were based on the answers that the candidate gave to the previous questions.
General Tips: This company looks for people with strong technical aptitude. So do not shy from showing all your projects. In other companies too many projects may lead them to believe that you are more interested in pursuing research and will leave the company soon. This may have a negative effect on other companies. But at Altair it is good to show all your projects, your research publications, any additional courses taken. Along with your technical projects it will be good if you could show them your coding ability. They are looking for technical people with a stint for coding.
College Name: IIT ROORKEE
Motivation: Altair deals with engineering services, product design, and engineering finite element software development (eg. hypermesh, hypermath, etc). The profile for which it takes the new recruits is for engineering software code writer.
Interview Preparation Tips
Experience: Written Test – 50 ppl appeared 15 were shortlisted for interview, 3 were finally selected. Technical interview mainly based on project and the basics of the subject HR – be pleasing If someone wants to appear for this company. .
Tips: Prepare some common topics such as globalization, reservation in IITs and IIMs, etc.
General Tips: Never let them ask you the points in which you are weak& Always lead the interviewer to the questions that you are expecting.
College Name: IIT BOMBAY
I applied via Naukri.com and was interviewed before Sep 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Problem solving and string processing
Interview Preparation Tips
I applied via Naukri.com and was interviewed before May 2021. There were 4 interview rounds.
It was mixed like aptitude and from technical.
(1 Question)
- Q1. It was F2F round. Where technical questions were asked.
(1 Question)
- Q1. Managerial round. It includes technical and managerial both
(1 Question)
- Q1. HR round. It includes all the HR level questions
Interview Preparation Tips
Software Engineer Interview Questions & Answers
Neudesic Technologies
Ravi Dhing
posted on 5 Oct 2024
It was resume based, make sure to prepare your resume well.
I applied via LinkedIn and was interviewed in Jan 2021. There were 5 interview rounds.
Interview Questionnaire
2 Questions
- Q1. I have been questioned on AEM Concepts, Sling Models, schedulers, servlets, OSGI services
- Q2. Be prepared for most of the concepts in AEM
Interview Preparation Tips
I applied via LinkedIn
Interview Questionnaire
1 Question
- Q1. I have been questioned on different concepts in AEM, sling models, services, servlets, schedulers, workflow
Interview Preparation Tips
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PubMatic Big Data Engineer Interview Process
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