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Nielsen Senior Software Engineer Interview Questions, Process, and Tips
Top Nielsen Senior Software Engineer Interview Questions and Answers
- Q1. What is a dirty read in a database?
- Q2. API and DB Schema for Instagram based application.
- Q3. What are design patterns?
Nielsen Senior Software Engineer Interview Experiences
5 interviews found
Anonymous
I applied via LinkedIn and was interviewed in Aug 2024. There were 2 interview rounds.
3 simple coding questions
(3 Questions)
- Q1. Merge sort with list
- Ans.
Merge sort is a divide and conquer algorithm that recursively divides the input array into smaller subarrays, sorts them, and then merges them back together.
Divide the input list into two halves
Recursively apply merge sort to each half
Merge the sorted halves back together
- Q2. Similar to coin exchange DP
- Q3. SQL query medium level
Interview Preparation Tips
- DSA
- Design Patterns
Skills evaluated in this interview
I applied via LinkedIn and was interviewed in Jul 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Minimum in Rotated Sorted array
- Ans.
Find the minimum element in a rotated sorted array.
Perform binary search to find the pivot point where the array is rotated.
Compare the element at pivot point to the first element to determine which half to search for the minimum.
Continue binary search in the appropriate half to find the minimum element.
- Q2. API and DB Schema for Instagram based application.
- Ans.
API for Instagram application to interact with user data and DB schema to store user information and posts.
API endpoints for user authentication, posting photos, liking photos, following users, etc.
DB schema with tables for users, posts, comments, likes, followers, etc.
Example API endpoint: /users/{userId}/posts to retrieve all posts by a specific user.
Example DB schema: Users table with columns for username, email, pr
(1 Question)
- Q1. Resume introspection, AWS, K8s
Skills evaluated in this interview
Selected
I applied via Approached by Company and was interviewed in Mar 2024. There were 2 interview rounds.
(1 Question)
- Q1. Third party took the interview. Basics of programming and database were asked.
(1 Question)
- Q1. Asked to build a small game. LLD round.
(2 Questions)
- Q1. Questions were mainly based on work experience and resume
- Q2. AWS Question regarding S3, saprk memory
Nielsen interview questions for designations
Selected
I appeared for an interview before Mar 2024, where I was asked the following questions.
- Q1. What is a dirty read in a database?
- Ans.
A dirty read occurs when a transaction reads data that has been modified but not yet committed by another transaction.
Dirty reads can lead to inconsistencies, as the data may change before the first transaction is committed.
For example, if Transaction A updates a record but hasn't committed yet, and Transaction B reads that record, Transaction B sees uncommitted data.
If Transaction A rolls back, Transaction B will have...
- Q2. What are design patterns?
- Ans.
Design patterns are reusable solutions to common software design problems, promoting best practices and improving code maintainability.
Creational patterns (e.g., Singleton, Factory Method) manage object creation.
Structural patterns (e.g., Adapter, Composite) deal with object composition.
Behavioral patterns (e.g., Observer, Strategy) focus on communication between objects.
Design patterns help in code reusability and sca
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Selected
I applied via Recruitment Consulltant and was interviewed before May 2023. There was 1 interview round.
(2 Questions)
- Q1. Explain your previous projects
- Q2. Scenario based question
I applied via LinkedIn and was interviewed in Feb 2024. There was 1 interview round.
(1 Question)
- Q1. Write progrem to check balenced brackets in a given string
- Ans.
Program to check balanced brackets in a given string
Use a stack to keep track of opening brackets
Iterate through the string and push opening brackets onto the stack
When a closing bracket is encountered, pop from the stack and check if it matches the corresponding opening bracket
If stack is empty at the end and all brackets are matched, the string is balanced
Interview Preparation Tips
Skills evaluated in this interview
(2 Questions)
- Q1. Sql query on joins Given two tables and create output result . It was self join
- Q2. Oops polymorphism questions Microservices Design pattern Factory pattern
Interview Preparation Tips
(2 Questions)
- Q1. Moderate questions
- Q2. Asynchronous coding, async, mvc, sql, missing number program
Interview Questionnaire
1 Question
- Q1. How to invoke the xml file using LibXML?
- Ans.
To invoke an XML file using LibXML, use the xmlReadFile() function.
Include the libxml/parser.h header file.
Use the xmlReadFile() function to read the XML file and create a xmlDocPtr object.
Use the xmlDocGetRootElement() function to get the root element of the XML document.
Use the xmlNodeGetContent() function to get the content of a node.
Use the xmlFreeDoc() function to free the memory allocated for the xmlDocPtr object...
Skills evaluated in this interview
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Nielsen Senior Software Engineer Interview Process
based on 6 interviews
2 Interview rounds
- Technical Round - 1
- Technical Round - 2
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Nielsen Senior Software Engineer Reviews and Ratings
based on 13 reviews
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