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Principal Global Services Senior Data Engineer Interview Questions, Process, and Tips
Principal Global Services Senior Data Engineer Interview Experiences
1 interview found
ABHISHEK JHA
I applied via Approached by Company and was interviewed in May 2024. There were 2 interview rounds.
(5 Questions)
- Q1. End to End project Architecture and data pipeline working
- Ans.
End to end project architecture involves designing and implementing a data pipeline to process and analyze data from various sources.
Define project requirements and goals
Design data architecture including data sources, storage, processing, and analytics tools
Implement data pipeline to extract, transform, and load data
Ensure data quality and consistency throughout the pipeline
Monitor and optimize performance of the data...
- Q2. Optimization performed in current project
- Ans.
Implemented query optimization techniques to improve performance in data processing.
Utilized indexing to speed up data retrieval
Optimized SQL queries by rewriting them for better performance
Implemented caching mechanisms to reduce redundant data processing
- Q3. SQL query to delete Duplicates using CTEs
- Ans.
Using Common Table Expressions (CTEs) to delete duplicates in SQL query
Use a CTE to identify duplicates by ranking rows based on a unique identifier
Delete rows with duplicate ranks in the main query
- Q4. Basic Python theory questions on lists and tuples and dictionaries
- Q5. Reverse a list without inbuilt functions
- Ans.
Reverse a list without using inbuilt functions
Create two pointers, one at the start and one at the end of the array
Swap the elements at the two pointers and move them towards the center until they meet
Repeat the process until the entire list is reversed
(4 Questions)
- Q1. End to End Project implementation
- Ans.
End to end project implementation involves taking a project from conception to completion, including planning, development, testing, and deployment.
Define project goals and requirements
Design data pipelines and architecture
Develop and implement data processing algorithms
Test and validate data quality and accuracy
Deploy and monitor the project in production
Iterate and improve based on feedback
- Q2. ETL Data warehousing concepts like CDC,SCD & Schema Design
- Q3. Question on Data Mesh & Architecture Design for ETL
- Q4. SQL joins, number of records for each join
- Ans.
SQL joins combine data from two or more tables based on a related column between them.
Different types of SQL joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.
The number of records in the result of a join depends on the type of join and the data in the tables.
For example, an INNER JOIN will only return records that have matching values in both tables, while a LEFT JOIN will return all records from the left...
Interview Preparation Tips
- Project Implementation
- Data Warehousing
- SQL
Skills evaluated in this interview
What people are saying about Principal Global Services
Interview questions from similar companies
I applied via Referral and was interviewed before Sep 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. OOPS Concept, Web Api, Static classes, Abstraction and Interfaces, Collections(List, Dictionary), Delegates, SQL Server- Stored Procedures, Functions, CTE/Temporary tables, indexes. ...
Interview Preparation Tips
There will be a coding test as well to test your coding skills, will be of moderate difficulty.
Selected
I appeared for an interview in Jan 2025.
(1 Question)
- Q1. Questions based on your technology
Scenario based questions
Interview Preparation Tips
Selected
I appeared for an interview in Sep 2024, where I was asked the following questions.
- Q1. Design a system for booking a meeting room.
- Ans.
A system to efficiently book, manage, and track meeting room availability and reservations.
User authentication: Ensure only authorized users can book rooms.
Room availability: Display real-time availability of meeting rooms.
Booking interface: Provide a user-friendly interface for selecting dates, times, and rooms.
Notifications: Send email or app notifications for booking confirmations and reminders.
Cancellation policy: ...
- Q2. Angular questions were not asked
- Q3. Question related to Cosmos DB , Azure Services and .net core
Interview Preparation Tips
Selected
I applied via Naukri.com and was interviewed in Aug 2022. There were 3 interview rounds.
(1 Question)
- Q1. Asked mostly on pure technical questions. Asked on PowerBI, SQL , scenario based questions.
(1 Question)
- Q1. Business related questions
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Sep 2023. There was 1 interview round.
(1 Question)
- Q1. Basic python questions, rest api and django questions
Selected
I applied via Campus Placement and was interviewed before Apr 2023. There were 3 interview rounds.
First round online. oding test
(1 Question)
- Q1. Questions on resume
(1 Question)
- Q1. Where do you see yourself in 5 years
Senior Software Engineer Interview Questions & Answers
Guardian India
Anonymous
posted on 17 Jul 2021
Interview Questionnaire
2 Questions
- Q1. Work experience and tools used
- Ans.
I have 8 years of work experience as a Senior Software Engineer.
Worked with Java, Python, and C++ programming languages
Used tools like Eclipse, IntelliJ, and Visual Studio for development
Experience with version control systems like Git and SVN
Worked with databases such as MySQL and MongoDB
Familiar with Agile development methodologies
Experience in building scalable and high-performance web applications
- Q2. Ssis and informatica
Senior Software Engineer Interview Questions & Answers
Guardian India
Anonymous
posted on 7 Apr 2024
Selected
I applied via Referral and was interviewed before Apr 2023. There were 2 interview rounds.
Normal level questions
(1 Question)
- Q1. Linear search program
Interview Preparation Tips
Selected
I applied via Referral and was interviewed in Dec 2023. There were 4 interview rounds.
(2 Questions)
- Q1. String based question, was of medium difficulty.
- Q2. Linked List based question, was of easy-medium difficulty.
(2 Questions)
- Q1. Java 8 and Core Java Fundamentals
- Q2. Explain one sorting algorithm.
- Ans.
Bubble Sort is a simple sorting algorithm that repeatedly steps through the list, compares adjacent elements, and swaps them if they are in the wrong order.
Compares adjacent elements and swaps them if they are in the wrong order
Repeats this process until the list is sorted
Not efficient for large lists due to its O(n^2) time complexity
Example: [5, 3, 8, 2, 1] -> [3, 5, 2, 1, 8] -> [3, 2, 1, 5, 8] -> [2, 1, 3, 5, 8] -> [
Multiple medium level MCQs on Java. 3 Coding Questions, 2 easy-medium and one Java 8 Coding question of medium-hard difficulty
(2 Questions)
- Q1. Tell me about yourself/previous work ex/projects.
- Q2. Salary negotiation
Interview Preparation Tips
- DSA
- Java
Skills evaluated in this interview
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Principal Global Services Interviews By Designations
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Principal Global Services Senior Data Engineer Interview Process
based on 1 interview
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Principal Global Services Senior Data Engineer Reviews and Ratings
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Process Specialist
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Analyst
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