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Happiest Minds Technologies Data Engineer Interview Questions and Answers

Updated 28 Aug 2024

Happiest Minds Technologies Data Engineer Interview Experiences

2 interviews found

Data Engineer Interview Questions & Answers

user image Anonymous

posted on 15 Oct 2023

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed in Apr 2023. There were 4 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 tips
Round 2 - Technical 

(1 Question)

  • Q1. SQL questions mostly
Round 3 - Technical 

(1 Question)

  • Q1. Azure data factory scenario based questions
Round 4 - Technical 

(1 Question)

  • Q1. Tough sql and Azure scenario based questions

Data Engineer Interview Questions & Answers

user image Nagaraj Purohit

posted on 28 Aug 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(5 Questions)

  • Q1. Data warehousing related questions
  • Q2. SQL scenario based questions
  • Q3. Project experience
  • Ans. 

    I have experience working on projects involving data pipeline development, ETL processes, and data warehousing.

    • Developed ETL processes to extract, transform, and load data from various sources into a data warehouse

    • Built data pipelines to automate the flow of data between systems and ensure data quality and consistency

    • Optimized database performance and implemented data modeling best practices

    • Worked on real-time data pro...

  • Answered by AI
  • Q4. Python Based questions
  • Q5. AWS features and questions
Round 2 - Technical 

(2 Questions)

  • Q1. Similar to first round but in depth questions relatively
  • Q2. Asked about career goals and stuff
Round 3 - HR 

(2 Questions)

  • Q1. General work related conversation
  • Q2. Salary discussion

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Interview questions from similar companies

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

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

Round 1 - One-on-one 

(2 Questions)

  • Q1. Azure Scenario based questions
  • Q2. Pyspark Coding based questions
Round 2 - One-on-one 

(2 Questions)

  • Q1. ADF, Databricks related question
  • Q2. Spark Performance problem and scenarios
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
6-8 weeks
Result
Selected Selected
Round 1 - Technical 

(1 Question)

  • Q1. More on Technical area
Round 2 - Technical 

(1 Question)

  • Q1. More on Technical area
Round 3 - One-on-one 

(1 Question)

  • Q1. Technical + Behaviour
Round 4 - One-on-one 

(1 Question)

  • Q1. Technical + Behaviour
Round 5 - HR 

(1 Question)

  • Q1. Expectation and Genaral
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

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

Round 1 - One-on-one 

(1 Question)

  • Q1. Diff between Coalesce and repatriation
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. SCD questions. Iceberg questions
  • Q2. Basic python programing, pyspark architechture.
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
No response

I applied via Naukri.com and was interviewed in Oct 2024. There was 1 interview round.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Incremental load in pyspark
  • Ans. 

    Incremental load in pyspark refers to loading only new or updated data into a dataset without reloading the entire dataset.

    • Use the 'delta' function in pyspark to perform incremental loads by specifying the 'mergeSchema' option.

    • Utilize the 'partitionBy' function to optimize incremental loads by partitioning the data based on specific columns.

    • Implement a logic to identify new or updated records based on timestamps or uni...

  • Answered by AI
  • Q2. Drop duplicates

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Not Selected

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

Round 1 - Coding Test 

Just focus on the basics of pyspark.

I applied via Approached by Company and was interviewed in Nov 2021. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Normalisation of database, views,stored procedures
  • Ans. 

    Normalization is a process of organizing data in a database to reduce redundancy and improve data integrity.

    • Normalization involves breaking down a table into smaller tables and defining relationships between them.

    • It helps in reducing data redundancy and inconsistencies.

    • Views are virtual tables that are created based on the result of a query. They can be used to simplify complex queries.

    • Stored procedures are precompiled...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Nice interviews.bhgdgjnfdtubxrrikfdeijjgdryihffuijggiok
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed in Sep 2024. There was 1 interview round.

Round 1 - Technical 

(14 Questions)

  • Q1. How to create pipeline in adf?
  • Q2. Diffrent types of activities in pipelines
  • Q3. What is use of getmetadata
  • Q4. Diffrent types of triggers
  • Q5. Diffrence between normal cluster and job cluster in databricks
  • Q6. What is slowly changing dimensions
  • Q7. Incremental load
  • Q8. With use in python
  • Q9. List vs tuple in python
  • Q10. Datalake 1 vs datalake2
  • Q11. How to read a file in databricks
  • Q12. Star vs snowflake schema
  • Q13. Repartition vs coalesece
  • Q14. Parquet file uses

Happiest Minds Technologies Interview FAQs

How many rounds are there in Happiest Minds Technologies Data Engineer interview?
Happiest Minds Technologies interview process usually has 3-4 rounds. The most common rounds in the Happiest Minds Technologies interview process are Technical, Resume Shortlist and HR.
How to prepare for Happiest Minds Technologies 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 Happiest Minds Technologies. The most common topics and skills that interviewers at Happiest Minds Technologies expect are Python, Data Modeling, Hospitality, AWS and Analytical.
What are the top questions asked in Happiest Minds Technologies Data Engineer interview?

Some of the top questions asked at the Happiest Minds Technologies Data Engineer interview -

  1. Similar to first round but in depth questions relativ...read more
  2. Azure data factory scenario based questi...read more
  3. Tough sql and Azure scenario based questi...read more

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Happiest Minds Technologies Data Engineer Interview Process

based on 2 interviews

Interview experience

4.5
  
Good
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Happiest Minds Technologies Data Engineer Salary
based on 92 salaries
₹4.3 L/yr - ₹17.1 L/yr
At par with the average Data Engineer Salary in India
View more details

Happiest Minds Technologies Data Engineer Reviews and Ratings

based on 11 reviews

3.5/5

Rating in categories

3.2

Skill development

3.6

Work-life balance

3.0

Salary

3.6

Job security

3.9

Company culture

3.0

Promotions

3.6

Work satisfaction

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