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QualMinds Data Engineer Interview Questions and Answers

Updated 12 Aug 2024

QualMinds Data Engineer Interview Experiences

1 interview found

Data Engineer Interview Questions & Answers

user image Anonymous

posted on 12 Aug 2024

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. SQL queries Ranking, highest salary
  • Q2. Optimisation techniques
  • Ans. 

    Optimisation techniques are methods used to improve the efficiency and performance of data processing.

    • Use indexing to speed up data retrieval

    • Implement caching to reduce redundant computations

    • Utilize parallel processing for faster execution

    • Optimize algorithms for better performance

    • Use data compression techniques to reduce storage space

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - SQL coding should be strong. Rest is ok.

Interview questions from similar companies

I appeared for an interview before Jun 2016.

Interview Questionnaire 

1 Question

  • Q1. Java related questions on Oops concept and Multithreading

Interview Preparation Tips

Round: Test
Experience: Simple aptitude and reasoning questions little java based programming
Tips: Basic programming knowledge and good aptitude
Duration: 1 hour
Total Questions: 60

Round: Technical Interview
Experience: Normal questions on Java, basic programming questions like reverse no. , String related and logical coding
Tips: What u mentioned on your resume go through that only, they will not ask apart from your resume

Skills: How Well You Are Able To Communicate What You Wanted To Tell, Programming
College Name: SRCEM

I applied via Campus Placement and was interviewed in Oct 2020. There was 1 interview round.

Interview Questionnaire 

4 Questions

  • Q1. Tell me about yourself
  • Q2. Why IT
  • Q3. About my project
  • Q4. Few mechanical questions

Interview Preparation Tips

Interview preparation tips for other job seekers - General questions
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 

(2 Questions)

  • Q1. What is a pointer to pointer
  • Ans. 

    A pointer to pointer is a variable that stores the memory address of another pointer variable.

    • It is used to create dynamic data structures like linked lists and trees.

    • It allows multiple levels of indirection.

    • It is denoted by ** in C and C++.

    • Example: int **ptr;

    • Example: ptr = &p; where p is a pointer variable.

  • Answered by AI
  • Q2. Class, object, inheritance, polymorphism,dbms

Interview Preparation Tips

Interview preparation tips for other job seekers - Work on pointers,work on ds, study network analysis, learn more about the job and company

Skills evaluated in this interview

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

I appeared for an interview before Mar 2024.

Round 1 - HR 

(2 Questions)

  • Q1. What experience do you have in this role?
  • Q2. What tools or technologies are you comfortable using?
  • Ans. 

    I am proficient in various data analysis tools, including Excel, SQL, Python, and visualization software like Tableau.

    • Excel: Advanced functions, pivot tables, and data visualization.

    • SQL: Writing complex queries for data extraction and manipulation.

    • Python: Utilizing libraries like Pandas and NumPy for data analysis.

    • Tableau: Creating interactive dashboards for data visualization.

    • R: Statistical analysis and data visualiza

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Follow Up – A simple follow-up email can increase your chances of getting hired.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Mar 2024. There were 2 interview rounds.

Round 1 - Coding Test 

Python, Pyspark, Scala, Kafka

Round 2 - HR 

(1 Question)

  • Q1. CTE Expectation

Interview Preparation Tips

Interview preparation tips for other job seekers - Revise your basic knowledge always
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
Selected Selected
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 - Assignment 

Design a web page with database connectivity

Round 3 - One-on-one 

(1 Question)

  • Q1. Describe your projects
  • Ans. 

    Developed a web-based project management tool for a startup

    • Used React for the frontend and Node.js for the backend

    • Implemented user authentication and authorization using JWT

    • Integrated with Trello API for task management

    • Deployed on AWS EC2 instance with Nginx as reverse proxy

  • Answered by AI
Round 4 - HR 

(1 Question)

  • Q1. Basic hr question
Interview experience
4
Good
Difficulty level
-
Process Duration
2-4 weeks
Result
Not Selected

I applied via Campus Placement

Round 1 - Aptitude Test 

Quant questions, you will be able to clear it easily

Round 2 - Assignment 

Task1: create a website with 3 wepages

task2: create custom linux commands

Interview Questionnaire 

3 Questions

  • Q1. 1. Assignment
  • Q2. 2. Bunch of python questions.
  • Q3. 3. coding questions.

Interview Preparation Tips

Interview preparation tips for other job seekers - Be clear with basics.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Apr 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

There are Question based on data strcuture ,they cover all the topic in ds

Round 2 - Coding Test 

In coding code they gave internet access to solve the problem after 30 they told us to make some changes in it and we should ready to explain the entire code

Interview Preparation Tips

Interview preparation tips for other job seekers - To clear 1 st round ,revise all the data structure concepts ,in second round make sure to be strong in fundamentals of programming and good in logical thinking

QualMinds Interview FAQs

How many rounds are there in QualMinds Data Engineer interview?
QualMinds interview process usually has 1 rounds. The most common rounds in the QualMinds interview process are Technical.
How to prepare for QualMinds 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 QualMinds. The most common topics and skills that interviewers at QualMinds expect are Data Structures, ETL Tool, MySQL, Bigquery and Data Engineering.
What are the top questions asked in QualMinds Data Engineer interview?

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

  1. Optimisation techniq...read more
  2. SQL queries Ranking, highest sal...read more

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QualMinds Data Engineer Interview Process

based on 1 interview

Interview experience

3
  
Average
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