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PubMatic Principal Engineer Interview Questions and Answers

Updated 12 Mar 2024

PubMatic Principal Engineer Interview Experiences

1 interview found

Interview experience
3
Average
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via LinkedIn and was interviewed in Feb 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Mostly towards your programming and coding ability. 1. Starting from DS, trees, algorithm, multi threading 2. Ask around strings and arrays
  • Q2. 1. longest path from node to node in tree
  • Ans. 

    The longest path from one node to another in a tree is the maximum number of edges that must be traversed to reach from one node to another.

    • The longest path in a tree is also known as the diameter of the tree.

    • The diameter of a tree can be found by first finding the farthest leaf node from any arbitrary node, and then finding the farthest leaf node from that leaf node.

    • The sum of the distances from the root to the farthe...

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. OS, In death problem solving questions, multi threading.
  • Q2. 1. Process 2. Dynamic memory 3. segment corrupted recovery 4. design system to take billions of request

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Feb 2023. There were 5 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Techincal Interview on C++, DSA.
Round 2 - Technical 

(1 Question)

  • Q1. Technical interview covering all aspects of of various topics C++, DS, System design, problem solving
Round 3 - Technical 

(1 Question)

  • Q1. One more level of techincal interview similar to round 2.
Round 4 - One-on-one 

(1 Question)

  • Q1. Hiring Manager or VP interview. Managerial
Round 5 - HR 

(1 Question)

  • Q1. Typical HR interview

Interview Preparation Tips

Topics to prepare for Mobileum Principal Engineer interview:
  • C++
  • System Analysis
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. A practical question on how caching can be used. What are advantages of using caching and drawbacks of it.
Round 2 - Architecture and Desing 

(1 Question)

  • Q1. What is the challenging thing you did in last 3 months? Once I explained 2 examples, more discussions went on that topic.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Feb 2023. There were 5 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Techincal Interview on C++, DSA.
Round 2 - Technical 

(1 Question)

  • Q1. Technical interview covering all aspects of of various topics C++, DS, System design, problem solving
Round 3 - Technical 

(1 Question)

  • Q1. One more level of techincal interview similar to round 2.
Round 4 - One-on-one 

(1 Question)

  • Q1. Hiring Manager or VP interview. Managerial
Round 5 - HR 

(1 Question)

  • Q1. Typical HR interview

Interview Preparation Tips

Topics to prepare for Mobileum Principal Engineer interview:
  • C++
  • System Analysis

PubMatic Interview FAQs

How many rounds are there in PubMatic Principal Engineer interview?
PubMatic interview process usually has 2 rounds. The most common rounds in the PubMatic interview process are Technical.
What are the top questions asked in PubMatic Principal Engineer interview?

Some of the top questions asked at the PubMatic Principal Engineer interview -

  1. 1. longest path from node to node in t...read more
  2. 1. Process 2. Dynamic memory 3. segment corrupted recovery 4. design system to ...read more
  3. Mostly towards your programming and coding ability. 1. Starting from DS, trees,...read more

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PubMatic Principal Engineer Salary
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₹32 L/yr - ₹55 L/yr
56% more than the average Principal Engineer Salary in India
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