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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

Data Engineer Interview Questions & Answers

user image navin k

posted on 17 Jul 2024

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
    Add your answer
  • 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
    Add your answer
  • 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
    Add your answer

Skills evaluated in this interview

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Interview Tips & Stories
2w (edited)
timepasstiwari
·
A Digital Markter
Got Rejected In an Interview, Just Because I Didn’t Answer a Personal Question
So, I got invited for this interview, and they told me to be there at 9 AM. Of course, I get there early, like 8:30, because I don't want to be late. But then I end up waiting for 1.5 hours. Seriously, they didn't even acknowledge me until 10. Then this HR lady calls me in, and she's totally unprofessional. She's like, on her phone, making personal calls while I'm sitting right there. And then she starts asking me these really weird questions, like what my nickname is, and what my dad does for a living. It got really uncomfortable when she started pressing for details about where my dad works. I mean, what does that have to do with anything? So I politely told her I didn't want to answer, and she actually said, "Then we can't continue this interview." I was honestly shocked. But instead of arguing, I just stood up and said, “Alright then.” And walked out. I left feeling pissed. Not only did they waste an hour of my time, but the HR rep was also rude and unprofessional..
Got a question about Hitachi Energy?
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Data Analyst Interview Questions & Answers

Eaton user image Anonymous

posted on 24 Oct 2023

Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview before Oct 2022.

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 - Coding Test 

Practical test was taken in this round

Round 3 - Technical 

(3 Questions)

  • Q1. More of a managerial round
    • Add your answer
  • Q2. Tell about current role
    • Add your answer
  • Q3. Question on current project
    • Add your answer
Round 4 - HR 

(1 Question)

  • Q1. Tell about yourself
    • Add your answer

Data Analyst Interview Questions & Answers

Adani Group user image Ayush Vaishya

posted on 3 Dec 2024

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

Mettle test and mcq were given in interview

Senior Engineer Interview Questions & Answers

Wind World user image

posted on 22 Sep 2022

I applied via Job Portal and was interviewed before Sep 2021. There were 3 interview rounds.

Round 1 - Technical 

(1 Question)

  • Q1. Aerodynamic, censure, Bearing,PCB, and bought the sector.
    • Add your answer
Round 2 - Technical 

(1 Question)

  • Q1. Project planning & monitoring, Tools, safety.
    • Add your answer
Round 3 - HR 

(1 Question)

  • Q1. General HR questions and personality check
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Go with a positive attitude and let them know bout your work ethics.

Software Engineer Interview Questions & Answers

Tata Power user image Anonymous

posted on 19 Mar 2021

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
    • Add your answer
  • Q2. Excel Presentation
    • Add your answer

Interview Preparation Tips

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

Software Engineer Interview Questions & Answers

GE Vernova user image

posted on 4 Sep 2021

I applied via Recruitment Consultant and was interviewed in Mar 2021. There were 3 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. 1. Coding question on max sum of subsequence ?
    • Add your answer
  • Q2. 2. Coding in question of finding number with most frequency when input array size is ~ 1M.
  • Ans. 

    Finding number with most frequency in 1M size array of strings.

    • Use a hash table to store the frequency of each number.

    • Iterate through the array and update the frequency in the hash table.

    • Find the number with the highest frequency in the hash table.

    • Answered by AI
    Add your answer
  • Q3. 3. Find lenght of linked list in single iteration.
  • Ans. 

    To find length of linked list in single iteration, use two pointers and traverse the list until the end.

    • Use two pointers, one moving one node at a time and the other moving two nodes at a time.

    • Traverse the list until the end is reached.

    • The number of iterations taken by the faster pointer to reach the end is the length of the linked list.

    • Answered by AI
    Add your answer
  • Q4. In dept of Cassandra, Applciation performance improvement, troubleshooting.
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - There were total 4 round; results would be announced only after 4 rounds. Improve you core strenght by practicing more problem sloving questions.

Skills evaluated in this interview

Senior Engineer Interview Questions & Answers

Wind World user image Anonymous

posted on 26 Feb 2022

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. All technical things related wind turbine.
    • Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Grip on WTG related problems, greasing,PM,BM and Major breakdown details.

Senior Engineer Interview Questions & Answers

Wind World user image Anonymous

posted on 17 Aug 2024

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

(2 Questions)

  • Q1. Current salary in Last year
    • Add your answer
  • Q2. Excepted salary information
    • Add your answer
Round 2 - Technical 

(3 Questions)

  • Q1. How many years of experience in wind
  • Ans. 

    I have 8 years of experience in wind energy industry.

    • I have worked in the wind energy industry for 8 years

    • Experience includes designing, installing, and maintaining wind turbines

    • Familiar with industry standards and regulations

    • Completed projects in various locations with different wind conditions

    • Answered by AI
    Add your answer
  • Q2. Total experience in carear
    • Add your answer
  • Q3. Working at height for 74th meter
    • Add your answer
Round 3 - Coding Test 

Tower claimb test of 800w wtg

Interview Preparation Tips

Interview preparation tips for other job seekers - No

Software Engineer Interview Questions & Answers

Eaton user image kiran pokharkar

posted on 17 Jan 2024

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

(3 Questions)

  • Q1. Just half hour interview Oops concept
    • Add your answer
  • Q2. . Net and angular basics
    • Add your answer
  • Q3. Project in details
    • Add your answer
Round 2 - Behavior 

(3 Questions)

  • Q1. What if team is not supporting you
    • Add your answer
  • Q2. Manager is not agree
    • Add your answer
  • Q3. 5 year your goals
    • Add your answer

Software Engineer Interview Questions & Answers

Eaton user image Sanjeev Kumar.N

posted on 26 Feb 2025

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

I appeared for an interview before Feb 2024.

Round 1 - Technical 

(1 Question)

  • Q1. Object oriented programming concept.
  • Ans. 

    Object oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.

    • Encapsulation: bundling data and methods that operate on the data into a single unit (object)

    • Inheritance: allows a class to inherit properties and behavior from another class

    • Polymorphism: ability for objects to be treated as instances of their parent class or as instances of their own class

    • Answered by AI
    Add your answer
More about working at Hitachi Energy

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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