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EPAM Systems Interview Questions, Process, and Tips
Top EPAM Systems 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 moreasked in Senior Software Engineer interview
- Q2. What are the ways to iterate on collectionsasked in Software Engineer interview
- Q3. what is equals and hashcode and does Object class implement equals method ?asked in Senior Java Developer interview
EPAM Systems Interview Experiences
538 interviews found
Anonymous
I applied via LinkedIn and was interviewed in Jun 2022. There were 3 interview rounds.
Two coding questions on codility. One was easy and second medium. 10 MCQ questions on Big Data related technologies.
(8 Questions)
- Q1. This round was scheduled for 1.5 hours and lasted 1 hrs 5 minutes. Discuss about projects done for previous company and architecture of the same.
- Q2. Write code for printing duplicate numbers in a list.
- Ans.
Code to print duplicate numbers in a list.
Iterate through the list and keep track of the count of each number using a dictionary.
Print the numbers that have a count greater than 1.
- Q3. Scala traits, higher order functions, currying
- Q4. Connecting Spark to Azure SQL Database.
- Ans.
Spark can connect to Azure SQL Database using JDBC driver.
Download and install the JDBC driver for Azure SQL Database.
Set up the connection string with the appropriate credentials.
Use the JDBC API to connect Spark to Azure SQL Database.
Example: val df = spark.read.jdbc(jdbcUrl, tableName, connectionProperties)
Ensure that the firewall rules for the Azure SQL Database allow access from the Spark cluster.
- Q5. Elaboration of Spark optimization techniques. Types of transformations, shuffling.
- Ans.
Spark optimization techniques include partitioning, caching, and using appropriate transformations.
Partitioning data can improve performance by reducing shuffling.
Caching frequently used data can reduce the need for recomputation.
Transformations like filter, map, and reduceByKey can be used to optimize data processing.
Shuffling can be minimized by using operations like reduceByKey instead of groupByKey.
Broadcasting sma...
- Q6. Difference between cache and persist, repartition and coalesce.
- Ans.
Cache and persist are used to store data in memory. Repartition and coalesce are used to change the number of partitions.
Cache stores the data in memory for faster access while persist allows the user to choose the storage level.
Repartition increases the number of partitions while coalesce decreases the number of partitions.
Cache and persist are transformations while repartition and coalesce are actions.
Cache and persi...
- Q7. Spark components and job execution steps.
- Q8. Hive types of tables and difference between them
- Ans.
Hive has two types of tables - Managed and External. Managed tables are managed by Hive, while External tables are managed outside of Hive.
Managed tables are created using 'CREATE TABLE' command and data is stored in Hive's warehouse directory
External tables are created using 'CREATE EXTERNAL TABLE' command and data is stored outside of Hive's warehouse directory
Managed tables are deleted when the table is dropped, whi...
(5 Questions)
- Q1. This was the final round of 1 hour and lasted 45 minutes.I was asked technical questions along with last companies project description.
- Q2. Discuss project and it's architecture.
- Ans.
Developed a data pipeline to process and analyze customer behavior data.
Used Apache Kafka for real-time data streaming
Implemented data processing using Apache Spark
Stored data in Hadoop Distributed File System (HDFS)
Used Tableau for data visualization
- Q3. Write code to print reverse of a sentence word by word.
- Ans.
Code to print reverse of a sentence word by word.
Split the sentence into words using space as delimiter
Store the words in an array
Print the words in reverse order
- Q4. Difference between RDD, Dataframe, Dataset.
- Ans.
RDD, Dataframe, and Dataset are data structures in Apache Spark with different characteristics and functionalities.
RDD (Resilient Distributed Datasets) is a fundamental data structure in Spark that represents an immutable distributed collection of objects. It provides low-level APIs for distributed data processing and fault tolerance.
Dataframe is a distributed collection of data organized into named columns. It is simi...
- Q5. Lineage graph, DAG formation, RDDs characteristics
Interview Preparation Tips
- Spark
- Hive
- Hadoop
Skills evaluated in this interview
Top EPAM Systems Data Engineer Interview Questions and Answers
Data Engineer Interview Questions asked at other Companies
I was interviewed in Feb 2025.
(8 Questions)
- Q1. What is the output of below code public class Test { public static void main(String[] args) { int I = 0; try { throw new NullPointerException(); // Exception is thrown ...
- Q2. What is the process to find duplicate names from a string array and print those that start with the letter 'B'?
- Ans.
Identify and print duplicate names from a string array that start with 'B'.
1. Create a string array with names, e.g., ['Bob', 'Alice', 'Bill', 'Bob', 'Bobby'].
2. Use a HashMap or dictionary to count occurrences of each name.
3. Iterate through the array and check for names starting with 'B'.
4. Print names that have a count greater than 1, e.g., 'Bob' and 'Bill' if they are duplicates.
- Q3. What are the annotations used in TestNG?
- Ans.
TestNG annotations are used to define test methods, configuration, and grouping in automated testing.
@Test: Marks a method as a test method. Example: @Test public void testMethod() {}
@BeforeSuite: Executes before the entire test suite. Example: @BeforeSuite public void setupSuite() {}
@AfterSuite: Executes after the entire test suite. Example: @AfterSuite public void teardownSuite() {}
@BeforeTest: Executes before any te...
- Q4. What tags have you used in the runner class?
- Q5. What is the difference between regression testing and smoke testing?
- Q6. Have you worked with custom exceptions? What exceptions have you encountered, and can you explain what a StaleElementReferenceException is?
- Q7. Explain the waits and write code for explicit wait
- Q8. What is the background of Behavior Driven Development (BDD)?
- Ans.
BDD is a software development approach that enhances collaboration between developers, testers, and non-technical stakeholders.
Originated from Test Driven Development (TDD) to improve communication.
Focuses on defining behavior in simple language, often using Gherkin syntax.
Encourages collaboration through examples and scenarios, e.g., 'Given a user is logged in, when they click logout, then they should see the login pa...
Qa Automation Testing Engineer Interview Questions asked at other Companies
(1 Question)
- Q1. Technical MCQ Questions on react
(5 Questions)
- Q1. Using hooks in react
- Ans.
React hooks allow functional components to manage state and side effects, enhancing code reusability and readability.
useState: Manages state in functional components. Example: const [count, setCount] = useState(0);
useEffect: Handles side effects like data fetching. Example: useEffect(() => { fetchData(); }, []);
Custom Hooks: Create reusable logic. Example: function useFetch(url) { /* logic */ }
useContext: Access con...
- Q2. Event Loop
- Q3. Event Delegation
- Q4. Array and string related dsa questions
- Q5. Behaviour questions
Front end Engineer Interview Questions asked at other Companies
What people are saying about EPAM Systems
ABHISHEK JHA
Selected
I applied via LinkedIn and was interviewed in Nov 2024. There were 4 interview rounds.
(6 Questions)
- Q1. Current day to day tasks
- Ans.
My current day-to-day tasks involve designing and implementing data pipelines, optimizing data storage and retrieval, and collaborating with cross-functional teams.
Designing and implementing data pipelines to extract, transform, and load data from various sources
Optimizing data storage and retrieval processes for efficiency and scalability
Collaborating with cross-functional teams to understand data requirements and del...
- Q2. Question on data modelling(star vs snowflake)
- Q3. Questions on data warehousing Dimensions, Facts, CDC, SCD types
- Q4. Questions on snowflake product and variety on objects there use case and optimizations, partition pruning.
- Q5. SQL queries: as per snowflake documentation 1. Read json file and extract data 2. sql query with subqueries to update records 3. sql query on window functions
- Q6. Easy Pyspark coding question.
(7 Questions)
- Q1. Project end to end detailed explanation and follow up questions.
- Q2. Questions on data warehousing concepts like facts & dimensions in detail
- Q3. Question on semi structured file formats
- Q4. Questions on snowflake product: 1. tasks 2. streams 3. time travel 4. meta data caching 5. views vs materialized views 6. how would you spin up an warehouse cluster
- Q5. Questions on spark 1. lazy evaluation 2. handling skew 3. data partitioning 4. pandas vs spark
- Q6. Questions on aws 1. lambda functions, synchronous vs asynchronous calls 2. dynamic frames, transformations 3. glue crawler 4. s3 storage classes
- Q7. SQL question using cross join, python question on string
(6 Questions)
- Q1. End to end project architecture.
- Ans.
The end-to-end project architecture involves designing and implementing the entire data pipeline from data ingestion to data visualization.
Data ingestion: Collecting data from various sources such as databases, APIs, and files.
Data processing: Cleaning, transforming, and aggregating the data using tools like Apache Spark or Hadoop.
Data storage: Storing the processed data in data warehouses or data lakes like Amazon S3 ...
- Q2. Questions on data modelling: 1. facts and types of facts 2. dimensions and its types 3. normalization vs denormalization
- Q3. Questions on automating spark notebooks and optimization on spark job.
- Q4. How to migrate 1000s of tables using spark(databricks) notebooks
- Ans.
Use Spark (Databricks) notebooks to migrate 1000s of tables efficiently.
Utilize Spark's parallel processing capabilities to handle large volumes of data
Leverage Databricks notebooks for interactive data exploration and transformation
Automate the migration process using scripts or workflows
Optimize performance by tuning Spark configurations and cluster settings
- Q5. Questions on delta format
- Q6. Sql question on joins and numbers of records for each type of join.
(3 Questions)
- Q1. Reason for change
- Ans.
Seeking new challenges and opportunities for growth in a more dynamic environment.
Desire for new challenges and learning opportunities
Seeking a more dynamic work environment
Looking to expand skill set and experience
Interested in working on cutting-edge technologies
Seeking better career advancement prospects
- Q2. Expectations from EPAM
- Ans.
I expect EPAM to provide challenging projects, opportunities for growth, a collaborative work environment, and support for continuous learning.
Challenging projects that allow me to utilize my skills and knowledge
Opportunities for professional growth and advancement within the company
A collaborative work environment where teamwork is valued
Support for continuous learning through training programs and resources
- Q3. Willing to relocate? when can you join
- Ans.
Yes, I am willing to relocate for the right opportunity. I can join the company within 4 weeks.
Willing to relocate for the right opportunity
Can join within 4 weeks
Open to discussing relocation assistance if needed
Interview Preparation Tips
- work experience
- SQL
- Python
- Spark
- snowflake
Skills evaluated in this interview
Top EPAM Systems Senior Data Engineer Interview Questions and Answers
Senior Data Engineer Interview Questions asked at other Companies
EPAM Systems interview questions for popular designations
I was interviewed in Feb 2025.
(3 Questions)
- Q1. In-depth question related to Java garbage collections, Java multi threading, daemon thread.
- Q2. Questions related to Java streams, functional interface, and some questions implementing streams.
- Q3. Questions related to desing principles, solid, event driven, factory pattern etc.
(3 Questions)
- Q1. In-depth questions on Hibernate, Spring bean life cycles, various annotations.
- Q2. Questions related to Kafka, redis, and multithreading.
- Q3. Questions related to design pattern, behavioral design pattern, factory, observer etc.
Senior Software Engineer 1 Interview Questions asked at other Companies
Get interview-ready with Top EPAM Systems Interview Questions
I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.
(6 Questions)
- Q1. Technical questions about Terraform, Service Endpoint, Private Endpoint, AKS
- Q2. Write Powershell Script
- Ans.
Best practices for writing PowerShell scripts
Use clear and descriptive variable names
Comment your code to explain complex logic
Handle errors gracefully with try/catch blocks
Use functions to modularize your script
Avoid hardcoding values whenever possible
- Q3. How to create a Private Endpoint for Azure Key Vaults
- Ans.
To create a Private Endpoint for Azure Key Vaults, you need to configure a private link service.
Navigate to the Azure portal and search for 'Key Vaults'.
Select the Key Vault you want to create a Private Endpoint for.
In the Key Vault settings, go to 'Private endpoint connections' and click on 'Add'.
Choose the subscription, resource group, and private DNS zone for the Private Endpoint.
Review and create the Private Endpoi
- Q4. Tell me the Network Configuration of AKS, what options we have during creation and how it is managed.
- Ans.
AKS allows for network configuration during creation and provides options for managing it.
During creation of AKS, network configuration options include specifying virtual network, subnet, and network policies.
Network configuration can be managed through Azure portal, Azure CLI, or ARM templates.
AKS supports network policies like Azure CNI, Kubenet, and Calico for network security and isolation.
Network configuration can...
- Q5. More detailed questions about AKS
- Q6. Ansible related questions
Interview Preparation Tips
- AKS
- Storage Account
- Key Vault
- Container
- Azure
- Azure IAAS
- Azure Service Endpoints
- Azure Private Enpoints
- Terraform
- Ansible
- Powershell
- Data Block in Terraformm
- Ansible Playbooks
- Storage Account Service Endpoint
- Azure Key Vault Private Endpoint
- Azure Kubernetes
I recently attended an interview with EPAM, and while I appreciate the opportunity to showcase my skills, the experience left me feeling quite disheartened.
During the discussion, the interviewer focused heavily on my career progression, particularly on my transition across technologies and my leadership roles. Comments were made implying that my recent promotion might have been due to solely to managing people rather than my technical contributions. This feedback not only felt dismissive but also undervalued the effort and skills I've put into my professional journey.
While I understand that interviews are meant to access candidates thoroughly, I believe constructive feedback should encourage candidates to improve, not leave them questioning their capabilities or career choices.
Overall, this experience has been a learning moment for me. I hope that EPAM considers ways to make the interview process more balanced and positive for future candidates., regardless of the outcome.
Lead DevOps Engineer Interview Questions asked at other Companies
Jobs at EPAM Systems
Monjil Chakraborty
I was interviewed in Feb 2025.
Questions on Python: 5 different simple python coding questions
(1 Question)
- Q1. Docker,Kubernetes,Terraform, Python,Cloud
(1 Question)
- Q1. Managerial and technical questions in depth
Interview Preparation Tips
Top EPAM Systems Devops Engineer Interview Questions and Answers
Devops Engineer Interview Questions asked at other Companies
Selected
I was interviewed in Jan 2025.
(3 Questions)
- Q1. In-depth questions on basics of core java
- Q2. Exceptions
- Q3. Memory management
(3 Questions)
- Q1. Stream Based Problems
- Ans.
Stream based problems involve processing data in a continuous flow rather than all at once.
Use stream processing libraries like Apache Kafka or Apache Flink
Consider factors like data volume, velocity, and variety
Implement backpressure mechanisms to handle high data loads
- Q2. Spring Boot questions on Annotations
- Q3. SQL questions
(2 Questions)
- Q1. Stream advanced questions
- Q2. Java 8 features
Top EPAM Systems Software Engineer Interview Questions and Answers
Software Engineer Interview Questions asked at other Companies
KAGGA NAGARANI
I applied via LinkedIn and was interviewed in Dec 2024. There were 2 interview rounds.
(4 Questions)
- Q1. Questions on basic iOS concepts like optionals, memory management, closures, SOLID, different architectures
- Q2. What is optional and optional binding and chaining
- Ans.
Optional in Swift allows variables to have no value. Optional binding and chaining are used to safely unwrap optionals.
Optional in Swift allows variables to have no value, denoted by a '?' after the type.
Optional binding is used to safely unwrap optionals by checking if they contain a value.
Optional chaining allows you to call methods, access properties, and subscript on an optional that might currently be nil.
Example:...
- Q3. What is ARC and how it is managed in iOS
- Ans.
ARC stands for Automatic Reference Counting, a memory management system used in iOS to automatically manage memory allocation and deallocation.
ARC automatically tracks and manages the memory used by objects in an iOS application.
It keeps track of the number of references to an object and deallocates the object when there are no more references to it.
ARC is enabled by default in Xcode for iOS projects, reducing the need...
- Q4. What are closures and how do we handle memory in closure
- Ans.
Closures are self-contained blocks of functionality that can be passed around and used in code.
Closures capture and store references to any constants and variables from the context in which they are defined.
To prevent strong reference cycles, use capture lists in closures.
Use weak or unowned references when capturing self inside a closure to avoid memory leaks.
(1 Question)
- Q1. In dept questions on Memory management, SOLID with coding example, dependency injection pattern example, unit testing, custom higher order function creation program
Interview Preparation Tips
- optionals
- ARC
- closures
- SOLID
- MVVM
- MVC
- strings
- arrays
SANGAVI K
(1 Question)
- Q1. Basic OOPS, C#, .NET and SQL questions
(2 Questions)
- Q1. What is middleware how to create custom middleware
- Ans.
Middleware is software that acts as a bridge between an operating system or database and applications, allowing them to communicate with each other.
Middleware is a layer of software that sits between the operating system and applications, providing services such as authentication, logging, and caching.
Custom middleware can be created in ASP.NET Core by implementing the IMiddleware interface and adding it to the applica...
- Q2. Can you write a program that takes the input "aabbccaaa" and produces the output "2a2b2c3a"?
- Ans.
Yes, a program can be written to convert 'aabbccaaa' to '2a2b2c3a'.
Create a function that iterates through the input string and counts the consecutive characters.
Store the count and character in a new string as needed.
Return the final output string.
(1 Question)
- Q1. Self introduction and salary discussion
Interview Preparation Tips
DOT NET Developer Interview Questions asked at other Companies
I applied via Approached by Company and was interviewed in Oct 2024. There were 3 interview rounds.
(7 Questions)
- Q1. Java related questions,what are all the oops concept, differences between equal and equals, design pattern, solid principle
- Q2. Selenium locator, wait, select class, action class, chome option , file uplod download
- Q3. Test ng annotations attributes parallel execution
- Ans.
TestNG annotations allow for parallel execution of test methods using attributes like 'parallel' and 'thread-count'.
TestNG annotations like @Test, @BeforeTest, @AfterTest can be used with attributes like 'parallel' to specify parallel execution of test methods.
The 'parallel' attribute can have values like 'methods', 'tests', 'classes', 'instances' to define the scope of parallel execution.
The 'thread-count' attribute c...
- Q4. Cucumber related
- Q5. Rest assured all direct questions
- Q6. Git relted question
- Q7. Ci /Cd related question
(1 Question)
- Q1. Not much technical. Scenario based question
(1 Question)
- Q1. No attempt. Not scheduled
Interview Preparation Tips
Bad experience. Dont just play with the candidates. If u really have the opening the call for interviews
Skills evaluated in this interview
Senior Automation Test Engineer Interview Questions asked at other Companies
EPAM Systems Interview FAQs
Some of the top questions asked at the EPAM Systems interview -
The duration of EPAM Systems interview process can vary, but typically it takes about less than 2 weeks to complete.
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EPAM Systems Interviews By Designations
- EPAM Systems Senior Software Engineer Interview Questions
- EPAM Systems Software Engineer Interview Questions
- EPAM Systems Software Developer Interview Questions
- EPAM Systems Automation Test Engineer Interview Questions
- EPAM Systems Java Developer Interview Questions
- EPAM Systems Lead Software Engineer Interview Questions
- EPAM Systems Senior Data Engineer Interview Questions
- EPAM Systems Senior Business Analyst Interview Questions
- Show more
Interview Questions for Popular Designations
- Senior Software Engineer Interview Questions
- Software Engineer Interview Questions
- Software Developer Interview Questions
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- Java Developer Interview Questions
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EPAM Systems Interview Process
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