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Hitachi Energy Data Engineer Interview Questions and Answers

Updated 17 Jul 2024

Hitachi Energy Data Engineer Interview Experiences

1 interview found

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

(3 Questions)

  • Q1. Difference between ADF and synapse in Azure
  • Ans. 

    ADF is a cloud-based data integration service while Synapse is an analytics service that brings together big data and data warehousing.

    • ADF is used for data integration and orchestration tasks, while Synapse is used for big data analytics and data warehousing

    • ADF allows you to create data pipelines to move and transform data, while Synapse provides a unified experience for data preparation, data management, data warehous...

  • Answered by AI
  • Q2. What RDD & why
  • Ans. 

    RDD stands for Resilient Distributed Dataset, a fundamental data structure in Apache Spark.

    • RDD is a fault-tolerant collection of elements that can be operated on in parallel.

    • RDDs are immutable, meaning they cannot be changed once created.

    • RDDs support two types of operations: transformations (creating a new RDD from an existing one) and actions (returning a value to the driver program).

  • Answered by AI
  • Q3. What SCD1 and SCD2
  • Ans. 

    SCD1 and SCD2 are types of slowly changing dimensions used in data warehousing.

    • SCD1 (Type 1): Overwrites old data with new data, losing historical information.

    • SCD2 (Type 2): Keeps track of historical data by creating new records for changes.

    • SCD1 is simpler and faster, while SCD2 provides more detailed historical information.

    • Example: SCD1 would update a customer's address directly, while SCD2 would create a new record w...

  • Answered by AI

Skills evaluated in this interview

Interview questions from similar companies

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

I applied via Referral and was interviewed in Dec 2023. There was 1 interview round.

Round 1 - Technical 

(3 Questions)

  • Q1. Explain Order of execution in SQL
  • Ans. 

    Order of execution in SQL determines the sequence in which different clauses are processed in a query.

    • SQL query is processed in the following order: FROM, WHERE, GROUP BY, HAVING, SELECT, ORDER BY.

    • FROM clause is processed first to retrieve data from tables.

    • WHERE clause filters the data based on specified conditions.

    • GROUP BY clause groups the data based on specified columns.

    • HAVING clause filters the grouped data.

    • SELECT ...

  • Answered by AI
  • Q2. Sumifs function
  • Q3. Boxplots?Histograms?

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on SQL AND EXCEL

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Mettle test and mcq were given in interview

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

I applied via Recruitment Consulltant and was interviewed before Apr 2023. There were 3 interview rounds.

Round 1 - HR 

(1 Question)

  • Q1. He ask about of your previous company and all
Round 2 - Technical 

(1 Question)

  • Q1. It totals depends upon for which profile you are giving interview. Mine was Data Analyst so the interviewer ask me about excel,sql,power bi and some part of statistics
Round 3 - Behavioral 

(1 Question)

  • Q1. He just asked my about my profile briefly and then questioned me about my profile ony then he told me about the work culture and the requiremnt of the profile.

Interview Questionnaire 

1 Question

  • Q1. Normal question about personality and job related

Interview Preparation Tips

Round: Test
Experience: Interview was going smoothly & all questions was related my job so it's was easy for me.
Tips: Good knowledge about of wind turbine
Duration: 2 hours
Total Questions: 25

Round: HR Interview
Experience: Interview was completed so easy
Tips: Required nice personality and confidence is must required

I applied via Referral and was interviewed in Oct 2020. There were 5 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. Questions related to your current job.
  • Q2. They check your confidence level and your communication level.
  • Q3. Should know to handle pressure.
  • Q4. They test your technical knowledge in the field you have previously worked at.

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident and realistic. Give true information about what you have done in previous industry.

I applied via Referral and was interviewed before Mar 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 - Technical 

(2 Questions)

  • Q1. Tell me about yourself
  • Ans. Starting from curriculum to end up with experience and some small personal details in between
  • Answered Anonymously
  • Q2. Where do you see yourself in next 5 year
  • Ans. Look at the company hierarchy and look at yourself as growth perspective.
  • Answered Anonymously

Interview Preparation Tips

Interview preparation tips for other job seekers - Please ensure that your resume and skills set should be matched with JD it will boost your chance to get a call.

All the best for future.

I applied via Naukri.com and was interviewed before Apr 2020. There were 3 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. About circuit breaker, transformer.
  • Q2. Single line diagrams, layout, substation calculation.

Interview Preparation Tips

Interview preparation tips for other job seekers - Please go through substation calculation and equipment.

I applied via Referral and was interviewed before Mar 2020. There were 3 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Method Overloading and Method Overriding
  • Q2. Excel Presentation

Interview Preparation Tips

Interview preparation tips for other job seekers - Work with business team and on excel presentation.

I applied via Referral and was interviewed before Apr 2021. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Maintenance phylosophy
  • Ans. Depends on equipment running hour, criticality, availability and standby.
  • Answered Anonymously

Interview Preparation Tips

Topics to prepare for Thermax Limited Senior Engineer interview:
  • Boe
  • Energy manager
Interview preparation tips for other job seekers - Be confidential and technically strong.
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Hitachi Energy Interview FAQs

How many rounds are there in Hitachi Energy Data Engineer interview?
Hitachi Energy interview process usually has 1 rounds. The most common rounds in the Hitachi Energy interview process are Technical.
How to prepare for Hitachi Energy 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 Hitachi Energy. The most common topics and skills that interviewers at Hitachi Energy expect are Procurement, System Testing, microsoft, Automation and Cloud Computing.
What are the top questions asked in Hitachi Energy Data Engineer interview?

Some of the top questions asked at the Hitachi Energy Data Engineer interview -

  1. Difference between ADF and synapse in Az...read more
  2. what RDD & ...read more
  3. what SCD1 and S...read more

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Hitachi Energy Data Engineer Interview Process

based on 1 interview

Interview experience

4
  
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