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EPAM Systems

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EPAM Systems Senior Software Engineer Interview Questions, Process, and Tips

Updated 19 Dec 2024

Top EPAM Systems Senior Software Engineer Interview Questions and Answers

Q1. Implementation of hashmap in Java 8, Bean lifecycle, difference between @Component and @Service, Front Controller, difference between PUT & PATCH, Authentication in R ...read more

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Q2. How to create and handle complex primary key in Spring Data JPA

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Q3. Given a matrix, when you encounter a 0, make all the elements in the corresponding row and column to 0.

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EPAM Systems Senior Software Engineer Interview Experiences

72 interviews found

Senior Software Engineer Interview Questions & Answers

Anonymous

posted on 13 Apr 2024

Interview experience

Excellent

Difficulty level

Moderate

Process Duration

2-4 weeks

Result

Selected

I applied via LinkedIn and was interviewed before Apr 2023. There was 1 interview round.

Round 1 - Technical

(2 Questions)

Q1. How do you make an object immutable, followed by how will you make a collection within your immutable object immutable as well so that the state doesn’t change

Ans.

To make an object immutable, use final keyword for fields and provide only getters. To make a collection immutable, use Collections.unmodifiableList() or similar methods.

Use final keyword for fields in the object to prevent them from being modified
Provide only getters for the fields to ensure they cannot be changed externally
For collections within the object, use Collections.unmodifiableList() or similar methods to cre

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Q2. Coding task - check specific characters in a string , proposed solution with string regex match

Ans.

Check specific characters in a string using regex match

Use regex pattern to match specific characters in the string
For example, to check for digits in a string: /[0-9]/
Use regex.test() method to check if the pattern exists in the string

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Interview Preparation Tips

Interview preparation tips for other job seekers - The questions will mostly be in specific to what you have mentioned in the resume , so brush up on every topic . If any coding task is given the focus will be on how you approach and not syntax, so be open and do clarify if you are not clear on the task.

Senior Software Engineer Interview Questions & Answers

Anonymous

posted on 24 Oct 2024

Interview experience

Excellent

Difficulty level

Process Duration

Result

Round 1 - Aptitude Test

Basic angular and js multiple choice round questions.

Round 2 - One-on-one

(5 Questions)

Q1. Debounce operator

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Q2. Css selectors and types

Ans.

CSS selectors are used to target specific elements on a webpage for styling purposes.

CSS selectors can target elements based on their type, class, ID, attributes, and more
Examples: 'p' targets all
elements, '.class' targets elements with a specific class, '#id' targets elements with a specific ID
Combining selectors with spaces, commas, and other operators allows for more specific targeting

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Q3. Pure and impure pipes

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Q4. Css preprocessor

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Q5. Adaptive vs responsive

Ans.

Adaptive design adjusts to different screen sizes based on predefined breakpoints, while responsive design fluidly resizes elements based on screen width.

Adaptive design uses predefined layouts for specific screen sizes
Responsive design fluidly adjusts elements based on screen width
Adaptive design may have fixed breakpoints for different devices
Responsive design is more flexible and can adapt to any screen size
Example:...

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Round 3 - One-on-one

(3 Questions)

Q1. Design patterns

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Q2. Angular lifecycle

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Q3. Routing in angular

Ans.

Routing in Angular allows navigation between different components in a single-page application.

Angular Router is a built-in library that provides navigation and routing functionality.
Routes are defined in the app-routing.module.ts file using RouterModule.forRoot() method.
Route parameters can be accessed using ActivatedRoute service in the component.
Lazy loading can be implemented to load modules only when needed for be

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Skills evaluated in this interview

Senior Software Engineer Interview Questions & Answers

Anonymous

posted on 23 Aug 2024

Interview experience

Good

Difficulty level

Moderate

Process Duration

Less than 2 weeks

Result

No response

I applied via Recruitment Consulltant and was interviewed in Jul 2024. There was 1 interview round.

Round 1 - Technical

(4 Questions)

Q1. SOLID Principles, Spring Framework, Stream APIs from Java 8, OOPS

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Q2. Microservices, Factory and Builder design pattern, Mocking private methods in junit test cases

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Q3. Find the triplets in an array whose sum is 0 , complexity - O(n2)

Ans.

Use nested loops to iterate through array and find triplets with sum 0.

Iterate through array with two nested loops to find all possible pairs.
For each pair, check if there is a third element that completes the triplet with sum 0.
Store the triplets found in a separate array.

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Q4. Implementation of hashmap in Java 8, Bean lifecycle, difference between @Component and @Service, Front Controller, difference between PUT & PATCH, Authentication in REST APIs, how to disable junit test cas...

Ans.

The interview question covers topics like hashmap implementation in Java 8, bean lifecycle, annotations in Spring framework, HTTP methods, REST API authentication, and disabling junit test cases during deployment.

HashMap in Java 8 uses an array of linked lists to store key-value pairs, with the hash code of the key determining the index in the array.
Bean lifecycle in Spring framework involves initialization and destruc...

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Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on Java 8 primarily, Spring and Microservices. Basic Coding questions. Interviewers were mostly focusing on theoretical concepts of Java.

Skills evaluated in this interview

What people are saying about EPAM Systems

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I want to know about the company Capco. Current domain: Data Engg YOE: 4.7 CCTC: 16.4 Offer: 23(fixed)+1 JB Post: Sr Consultant 2 grade M2. I want to know about the company culture,WLB,job security,bench policy.Also,I am a bit confused.The role offered is for a consultant,but the questions were more oriented toward arch. There were no questions on PySpark.The manager said the work is on ETL migration for Barclays using AWS Glue and Spark,but no related questions.Should I take the offer or continue rounds with EPAM,UST,EY? There are other offers. Yash Tech:22LAP(fixed) Publicis Sapient: 25(fixed) Quantiphi: 25(quoted from my side,no offer yet) But the thing is that here the work is unclear. Also there are other company rounds going like EPAM,UST.

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Senior Software Engineer Interview Questions & Answers

Anonymous

posted on 9 Nov 2024

Interview experience

Excellent

Difficulty level

Process Duration

Result

Round 1 - Technical