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Paytm Data Engineer Interview Questions, Process, and Tips

Updated 8 Jun 2024

Top Paytm Data Engineer Interview Questions and Answers

  • Q1. 1) What is internal mechanism in spark . 2) tungsten project in spark explanation 3) sql problem to check where last two transaction belongs to particular retail
  • Q2. Big data optimisation techniques
  • Q3. SQL normalisation types and explanation

Paytm Data Engineer Interview Experiences

4 interviews found

Data Engineer Interview Questions & Answers

user image Anonymous

posted on 15 Mar 2023

Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Question on sql and other stuff
Round 2 - Technical 

(1 Question)

  • Q1. Question on sql and other stuff
Round 3 - Technical 

(1 Question)

  • Q1. Question on sql and queries

Interview Preparation Tips

Interview preparation tips for other job seekers - Don't join. I personally found it very unprofessional.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Jun 2023. There were 3 interview rounds.

Round 1 - Coding Test 

1 hr medium level DSA questions

Round 2 - One-on-one 

(2 Questions)

  • Q1. DFS in tree Data Structure
  • Ans. 

    DFS (Depth First Search) is a traversal algorithm used in tree data structures to explore as far as possible along each branch before backtracking.

    • DFS starts at the root node and explores as far as possible along each branch before backtracking.

    • It uses a stack to keep track of nodes to visit next.

    • DFS can be implemented recursively or iteratively.

    • Example: In a binary tree, DFS would visit the left child of a node before

  • Answered by AI
  • Q2. SQL normalisation types and explanation
  • Ans. 

    SQL normalisation types include 1NF, 2NF, 3NF, BCNF, and 4NF, each with specific rules for eliminating data redundancy.

    • 1NF (First Normal Form) - Each column in a table must contain atomic values, and there should be no repeating groups.

    • 2NF (Second Normal Form) - Table should be in 1NF and all non-key attributes should be fully functionally dependent on the primary key.

    • 3NF (Third Normal Form) - Table should be in 2NF an...

  • Answered by AI
Round 3 - HR 

(2 Questions)

  • Q1. Preferred Location
  • Ans. 

    I am open to opportunities in various locations, depending on the job offer and company culture.

    • Open to relocation for the right opportunity

    • Prefer locations with good work-life balance

    • Interested in cities with strong tech communities

  • Answered by AI
  • Q2. About the company

Interview Preparation Tips

Interview preparation tips for other job seekers - This was an on-campus interview, everything was done in one day

Skills evaluated in this interview

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Data Engineer Interview Questions & Answers

user image Anonymous

posted on 11 Mar 2024

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

I applied via Naukri.com and was interviewed before Mar 2023. There were 4 interview rounds.

Round 1 - Coding Test 

Hackerrank test with medium level DSA and SQL questions

Round 2 - Technical 

(3 Questions)

  • Q1. SQL joins and window functions
  • Q2. Big data optimisation techniques
  • Ans. 

    Big data optimisation techniques involve strategies to improve the performance and efficiency of processing large volumes of data.

    • Use of distributed computing frameworks like Hadoop and Spark to process data in parallel

    • Implementing data compression techniques to reduce storage requirements

    • Utilizing indexing and partitioning to optimize query performance

    • Applying data pruning and filtering to reduce unnecessary data proc...

  • Answered by AI
  • Q3. DSA Medium level
Round 3 - Technical 

(2 Questions)

  • Q1. Big data Eco system
  • Q2. SQL and Python related
Round 4 - Technical 

(1 Question)

  • Q1. Managerial round on a specific use case designing

Interview Preparation Tips

Interview preparation tips for other job seekers - For Big data related interviews, Be very good with spark optimisations and SQL

Skills evaluated in this interview

Round 1 - Technical 

(1 Question)

  • Q1. 1) What is internal mechanism in spark . 2) tungsten project in spark explanation 3) sql problem to check where last two transaction belongs to particular retail
  • Ans. 

    Questions related to Spark internals, Tungsten project, and SQL problem for retail transactions.

    • Spark's internal mechanism includes components like Spark Core, Spark SQL, Spark Streaming, and MLlib.

    • Tungsten project in Spark aims to improve the performance of Spark by optimizing memory usage and CPU utilization.

    • To solve the SQL problem, we can use a query to filter transactions for a particular retail and then use the '...

  • Answered by AI
Round 2 - Technical 

(1 Question)

  • Q1. 1) scenario based question like , if a. job is launched with single executor will there be shuffling

Interview Preparation Tips

Interview preparation tips for other job seekers - look into spark architecture in details . how to assign executors and cores effeciently etc

Skills evaluated in this interview

Paytm interview questions for designations

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 (1)

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 (2)

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 (2)

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Interview questions from similar companies

Interview experience
4
Good
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed before Aug 2023. There were 2 interview rounds.

Round 1 - Coding Test 

All about coding and solving questions

Round 2 - Technical 

(2 Questions)

  • Q1. All about coding questions in depth and follow up questions
  • Q2. Be good in coding

Interview Preparation Tips

Interview preparation tips for other job seekers - Very supportive interviewer. Helps in between to make you comfortable

Interview Questionnaire 

2 Questions

  • Q1. DSA asked overall
  • Q2. Practise all dsa questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Not that hard can be solved with practise

I applied via AngelList and was interviewed before Oct 2021. There were 2 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 - HR 

(2 Questions)

  • Q1. What's your name? Previously working details
  • Q2. Your long term goals?

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare hard guys they are much more expertise in their field
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 - Coding Test 

There was a Hackerearth test with two questions

Round 3 - Technical 

(2 Questions)

  • Q1. Some standard data structures question on array
  • Q2. Standard question on trees

Interview Preparation Tips

Interview preparation tips for other job seekers - Revise on the standard data structures questions and a bit on api design and system design
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I was interviewed in Dec 2024.

Round 1 - Technical 

(2 Questions)

  • Q1. Anagram question
  • Q2. Sql join questions
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

The Question was average, the interviewer had a fixed approach in mind, which he wanted to follow, but was friendly and trying to help. Overall a good experience.

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare your DSA well and dont forget to touch on the basics of programming, people often just study only DSA.
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Paytm Interview FAQs

How many rounds are there in Paytm Data Engineer interview?
Paytm interview process usually has 3-4 rounds. The most common rounds in the Paytm interview process are Technical, Coding Test and Resume Shortlist.
How to prepare for Paytm Data Engineer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Paytm. The most common topics and skills that interviewers at Paytm expect are Python, SCALA, Spark, HBase and Analytics.
What are the top questions asked in Paytm Data Engineer interview?

Some of the top questions asked at the Paytm Data Engineer interview -

  1. 1) What is internal mechanism in spark . 2) tungsten project in spark explanati...read more
  2. Big data optimisation techniq...read more
  3. SQL normalisation types and explanat...read more

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Paytm Data Engineer Interview Process

based on 4 interviews

1 Interview rounds

  • Technical Round
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Data Engineer Interview Questions from Similar Companies

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Paytm Data Engineer Salary
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47% more than the average Data Engineer Salary in India
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