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Happiest Minds Technologies Senior Software Engineer Interview Questions, Process, and Tips
Top Happiest Minds Technologies Senior Software Engineer Interview Questions and Answers
- Q1. how many columns can be created in table?
- Q2. Types of Design Patterns and explain any one
- Q3. Explain in details about Oops concepts
Happiest Minds Technologies Senior Software Engineer Interview Experiences
5 interviews found
Anonymous
Selected
(3 Questions)
- Q1. What are closures
- Ans.
Closures are functions that have access to variables from their containing scope even after the scope has closed.
Closures allow functions to access variables from their outer function even after the outer function has finished executing.
They are commonly used in event handlers, callbacks, and asynchronous programming.
Closures help in maintaining state in functional programming.
- Q2. What is virtual DOM
- Ans.
Virtual DOM is a lightweight copy of the actual DOM used for efficient updates in web development.
Virtual DOM is a concept used in frameworks like React to improve performance by minimizing actual DOM manipulations.
When changes are made to the virtual DOM, a comparison is done with the actual DOM to determine the minimal updates needed.
This approach reduces the number of costly DOM operations, resulting in faster rende
- Q3. What are the data types in JS
- Ans.
Data types in JavaScript include number, string, boolean, object, function, undefined, and null.
Number - represents numeric data, e.g. 10, 3.14
String - represents textual data, e.g. 'hello', '123'
Boolean - represents true or false values, e.g. true, false
Object - represents complex data structures, e.g. { key: 'value' }
Function - represents executable code, e.g. function() { }
Undefined - represents a variable that has ...
(1 Question)
- Q1. Write react code for counter
- Ans.
React code for a simple counter
Create a functional component for the counter
Use useState hook to manage the count state
Render the count value and buttons to increment and decrement the count
(1 Question)
- Q1. Salary discussion
Interview Preparation Tips
Skills evaluated in this interview
(2 Questions)
- Q1. Basic questions on Javascript like closure, event loop,hoisting and some coding questions on map,filter, reduce
- Q2. Basic conceptual questions on React, redux
(1 Question)
- Q1. Coding questions on JS and React
(1 Question)
- Q1. Salary Expectation
Selected
I applied via Recruitment Consulltant and was interviewed before Mar 2022. There were 4 interview rounds.
(2 Questions)
- Q1. Basic javascript questions and basic node js questions
- Q2. Basic programming questions
(2 Questions)
- Q1. They will check In depth architecture understanding of the products you have worked
- Q2. Test your Critical thinking by asking how you manage the load and multiple systems interaction, asyc programming
(1 Question)
- Q1. Salary expectation, and attitude and behaviour test
Interview Preparation Tips
Interview Questionnaire
2 Questions
- Q1. How many columns can be created in table?
- Ans.
The number of columns that can be created in a table depends on the database management system being used.
The limit varies depending on the DBMS
For MySQL, the limit is 4096 columns per table
For Oracle, the limit is 1000 columns per table
The number of columns can also be limited by the available memory and disk space
- Q2. Which is master database
- Ans.
Master database is the primary database that stores all the important data of an organization.
Master database is the central repository of all the important data of an organization
It is used to store and manage critical data such as customer information, financial data, and employee records
It is usually the most secure and highly available database in an organization
Examples of master databases include Oracle, SQL Serv
Interview Preparation Tips
Skills evaluated in this interview
Happiest Minds Technologies interview questions for designations
I applied via Naukri.com and was interviewed in Jul 2021. There were 2 interview rounds.
(1 Question)
- Q1. Explain in details about Oops concepts
- Ans.
OOPs concepts are the fundamental principles of object-oriented programming.
Encapsulation - binding data and functions together
Inheritance - creating new classes from existing ones
Polymorphism - ability of objects to take on multiple forms
Abstraction - hiding implementation details from users
(1 Question)
- Q1. Types of Design Patterns and explain any one
- Ans.
Design patterns are reusable solutions to common software problems. One example is the Singleton pattern.
Creational patterns: Singleton, Factory, Abstract Factory, Builder
Structural patterns: Adapter, Bridge, Composite, Decorator, Facade, Flyweight, Proxy
Behavioral patterns: Chain of Responsibility, Command, Interpreter, Iterator, Mediator, Memento, Observer, State, Strategy, Template Method, Visitor
Singleton pattern e...
Interview Preparation Tips
Skills evaluated in this interview
Get interview-ready with Top Happiest Minds Technologies Interview Questions
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Interview questions from similar companies
Selected
I applied via Approached by Company and was interviewed in Dec 2024. There were 3 interview rounds.
(2 Questions)
- Q1. What are the different sizes available for a virtual warehouse in Snowflake, and which sizes are currently being utilized in your current project?
- Q2. What are stored procedures in Snowflake, and how did you utilize them?
(2 Questions)
- Q1. How did you verify the data after transferring it from one database to another?
- Q2. What are the different types of duplicate checks that can be performed using SQL queries?
(2 Questions)
- Q1. Are you open to relocating to Hyderabad?
- Q2. What information do you have about ValueLabs?
Interview Preparation Tips
- Snowflake
- SQL
- Python
Selected
(2 Questions)
- Q1. What is the internal working of a hashmap?
- Q2. Design a Least Recently Used (LRU) cache.
(2 Questions)
- Q1. What are the SOLID principles in software engineering?
- Q2. What design patterns have you worked with?
Selected
I applied via Recruitment Consulltant and was interviewed in Oct 2024. There were 2 interview rounds.
(3 Questions)
- Q1. DIscussed on mIcroservice arch with AWS
- Q2. Question related to spring boot annotations
- Q3. Questions related to design pattern
(3 Questions)
- Q1. Question related to previous project.
- Q2. Some questions of MySQL
- Q3. Multithreading related questions,
I applied via Approached by Company and was interviewed in Oct 2024. There were 3 interview rounds.
One coding test happen
(2 Questions)
- Q1. Java questions, spring boot framework questions
- Q2. DSA using stream api
- Ans.
Using stream API for Data Structures and Algorithms
Stream API in Java can be used to perform operations on collections like filtering, mapping, reducing, etc.
It can be used for implementing various data structures and algorithms efficiently.
For example, you can use stream API to find the sum of all elements in an array or filter out even numbers from a list.
(2 Questions)
- Q1. Java questions and spring boot questions
- Q2. One program using stream api
- Ans.
Using stream API to filter a list of numbers and find the sum of even numbers
Use Stream.filter() to filter out even numbers
Use Stream.mapToInt() to convert stream to IntStream
Use IntStream.sum() to find the sum of even numbers
Skills evaluated in this interview
Selected
(2 Questions)
- Q1. Difference between Scheduled script and Map reduce script?
- Ans.
Scheduled script runs on a predefined schedule, while Map reduce script processes large datasets in parallel.
Scheduled script is used for automating tasks at specific times, like sending reports daily at 8am.
Map reduce script is used for processing large datasets by splitting them into smaller chunks and processing them in parallel.
Scheduled script is typically used for routine tasks, while Map reduce script is used fo...
- Q2. Types of scripts in NetSuite.
- Ans.
Types of scripts in NetSuite include SuiteScript, SuiteTalk, SuiteFlow, and SuiteBuilder.
SuiteScript: JavaScript-based scripts for customizing NetSuite functionality.
SuiteTalk: Web services integration for connecting NetSuite with external systems.
SuiteFlow: Visual workflow tool for automating business processes.
SuiteBuilder: Customization tool for modifying NetSuite forms, fields, and records.
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Happiest Minds Technologies Interviews By Designations
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Happiest Minds Technologies Senior Software Engineer Interview Process
based on 7 interviews
1 Interview rounds
- Technical Round
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Happiest Minds Technologies Senior Software Engineer Reviews and Ratings
based on 125 reviews
Rating in categories
|
Senior Software Engineer
993
salaries
|  ₹4.8 L/yr - ₹18 L/yr |
|
Module Lead
846
salaries
| ₹9 L/yr - ₹30 L/yr |
|
Technical Lead
815
salaries
| ₹9 L/yr - ₹39 L/yr |
|
Software Engineer
620
salaries
| ₹2.8 L/yr - ₹9.2 L/yr |
|
Senior Engineer
348
salaries
| ₹3.9 L/yr - ₹14.5 L/yr |
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