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GfK MODE Data Engineer Interview Questions, Process, and Tips

Updated 1 Oct 2024

GfK MODE Data Engineer Interview Experiences

1 interview found

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

I applied via Referral and was interviewed in Sep 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. What is coalesce
  • Ans. 

    Coalesce is a function used to return the first non-null value in a list of expressions.

    • Coalesce function is commonly used in SQL to handle null values.

    • It takes multiple arguments and returns the first non-null value.

    • Example: COALESCE(column1, column2, 'default') will return the value of column1 if not null, else column2, and if both are null, it will return 'default'.

  • Answered by AI
  • Q2. What is repartition
  • Ans. 

    Repartition is the process of redistributing data across partitions in a distributed system.

    • Repartitioning helps in balancing the workload and improving performance in distributed computing environments.

    • It involves moving data between partitions based on certain criteria such as key values or hash functions.

    • Repartitioning can be done in Spark using operations like repartition() or coalesce().

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. Non repeatable character
  • Ans. 

    A non repeatable character is a character that appears only once in a given string.

    • Iterate through the string and count the frequency of each character

    • Identify the characters that have a frequency of 1

    • Return the first non repeatable character found

  • Answered by AI
  • Q2. Sort list without sort method
  • Ans. 

    Sort list without using sort method

    • Create a custom sorting function using loops

    • Compare each element with every other element to determine the correct order

    • Swap elements based on the comparison results

  • Answered by AI

Skills evaluated in this interview

Interview questions from similar companies

I appeared for an interview in Jul 2017.

Interview Questionnaire 

3 Questions

  • Q1. Tell me about yourself?
  • Ans. 

    I am a data analyst with a strong background in statistics and programming.

    • I have a Bachelor's degree in Statistics and have completed several courses in programming languages like Python and SQL.

    • I have experience working with large datasets and conducting data analysis using statistical techniques.

    • I am proficient in data visualization tools like Tableau and have created interactive dashboards to present insights.

    • I hav...

  • Answered by AI
  • Q2. Why this company?
  • Ans. 

    I am interested in this company because of its strong reputation in the data analytics industry and its commitment to innovation.

    • The company has a proven track record of success in the data analytics industry.

    • It has a strong reputation for delivering high-quality insights and solutions.

    • The company values innovation and encourages employees to think creatively.

    • There are opportunities for professional growth and developm...

  • Answered by AI
  • Q3. Why do you want to make a career in this field inspite being an engineer?
  • Ans. 

    I am passionate about using data to solve complex problems and make informed decisions.

    • Data analysis allows me to apply my analytical skills and engineering background to extract valuable insights from data.

    • I enjoy working with numbers, statistics, and programming, which are all essential skills in the field of data analysis.

    • Data analysis offers a wide range of opportunities to work on diverse projects and industries, ...

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: The written test consists of 2 sections. First section is of verbal reasoning which is very easy. And second section consists of data interpretation, quant questions.
Tips: Speed and accuracy are important in this test. Daily practicing of aptitude can get you through the exam.
Duration: 45 minutes
Total Questions: 40

Round: Technical + HR Interview
Experience: After entering the interview room, the first question asked to me was "Walk me through your CV ".After that, I was asked some puzzle questions, one math question and a case study question which was bit difficult. The interviewer was trying to make me stressed by picking one of my strengths and saying that he considers it as my weakness. He was not convinced with whatever I said but in order to overcome above stress be clam and cool. Say what you know without hesitation, be strong, and be yourself. Last but not the least, don't bluff because he will eventually figure it out, even if you bluff say it convincingly.
Tips: Be perfect about what you have written in your CV and just be yourself.

Round: HR Interview
Experience: HR round was very cool . Actually the panel was friendly with me. They asked some common HR questions. That's it about this round.
Tips: Be fluent and develop good communication skills.

College Name: NIT Bhopal

I applied via Job Portal and was interviewed before Nov 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. I was asked about SQL,java excel and tableau questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Please prepare for SQL ,Tableau if you mention in the resume

I applied via Walk-in and was interviewed before Jun 2021. There were 2 interview rounds.

Round 1 - One-on-one 

(1 Question)

  • Q1. What is EPS? Why balance sheet always match?
  • Ans. 

    EPS stands for Earnings Per Share. Balance sheet always matches due to the fundamental accounting equation.

    • EPS is a financial metric that measures the profit earned by a company per outstanding share of common stock.

    • It is calculated by dividing the net income of the company by the total number of outstanding shares.

    • Balance sheet always matches because of the fundamental accounting equation which states that assets must...

  • Answered by AI
Round 2 - One-on-one 

(1 Question)

  • Q1. What is depreciation and amortization?
  • Ans. 

    Depreciation and amortization are accounting methods used to allocate the cost of assets over their useful lives.

    • Depreciation is the allocation of the cost of tangible assets, such as buildings or equipment, over their useful lives.

    • Amortization is the allocation of the cost of intangible assets, such as patents or copyrights, over their useful lives.

    • Both depreciation and amortization are non-cash expenses that reduce t...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for S&P Global Data Analyst interview:
  • Accounting principles
Interview preparation tips for other job seekers - Be prepared for accounting terms and accounting principles. Concept should be clear in your mind and be confident.

I applied via Recruitment Consultant and was interviewed before Nov 2020. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. Python programming questions
  • Q2. Custom Exceptional Handling

Interview Preparation Tips

Interview preparation tips for other job seekers - Answer everything confidently.

I applied via Naukri.com

Interview Questionnaire 

1 Question

  • Q1. About education qualification. Experience, knowledge about the position.

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep calm and cool.

Interview Preparation Tips

Interview preparation tips for other job seekers - Main focus on Junit. If you are good in it is fine.

I applied via Recruitment Consulltant and was interviewed in Feb 2023. There were 3 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 - Aptitude Test 

A problem solving aptitude game based test which is also known as pymetric test.

Round 3 - HR 

(2 Questions)

  • Q1. 1. Basic question about yourself
  • Q2. 2. Related to domain

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident
Be honest
Show recruiters a learning attitude
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

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

Round 1 - Coding Test 

Py and big data general questions

Round 2 - HR 

(2 Questions)

  • Q1. Quiz questions was asked
  • Q2. Tell me about yourself
Interview experience
4
Good
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Not Selected

I applied via Referral and was interviewed before May 2022. There were 3 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 - Aptitude Test 

There was around 6-7 query to write

Round 3 - Coding Test 

Requires good SQL query skills

GfK MODE Interview FAQs

How many rounds are there in GfK MODE Data Engineer interview?
GfK MODE interview process usually has 2 rounds. The most common rounds in the GfK MODE interview process are Technical.
How to prepare for GfK MODE 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 GfK MODE. The most common topics and skills that interviewers at GfK MODE expect are Agile, Market Research, Python, Analytics and Data Management.
What are the top questions asked in GfK MODE Data Engineer interview?

Some of the top questions asked at the GfK MODE Data Engineer interview -

  1. What is coale...read more
  2. What is repartit...read more
  3. Non repeatable charac...read more

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GfK MODE Data Engineer Interview Process

based on 1 interview

Interview experience

4
  
Good
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