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

Q1. 1.) Question on java topics including collections, multithreading, jvm memory management. 2.) spring boot questions. 3.) Two coding questions. a.) one is simple string problem. b.) merging two sorted array...read more
Add your answer

Q1. 1.) design patterns and clean code practices. 2.) one coding question. add two numbers represented by two arrays in reverse order.
Add your answer

Q1. Solid principles
Add your answer

Leetcode style medium level questions

Q1. Mostly on System Design Fundamentals and Java Concepts
Add your answer

Q1. Frontend Round involved Machine Coding
Add your answer

Q1. Managerial Round consists of behavioural questions
Add your answer

Q1. Salary negotiations and about the company culture
Add your answer

Coding test online having 30 questions

Q1. What is window function in sql
Ans. 
Window function in SQL is used to perform calculations across a set of table rows related to the current row.
• Window functions are applied to a set of rows related to the current row, known as a window frame.

• They can be used to calculate running totals, ranks, averages, and more.

• Examples of window functions include ROW_NUMBER(), RANK(), SUM(), AVG(), and LEAD().
Answered by AI
Add your answer
Q2. How spark procss data in parlell.
Ans. 
Spark processes data in parallel using its distributed computing framework.
• Spark divides data into partitions and processes each partition independently.

• Tasks are executed in parallel across multiple nodes in a cluster.

• Spark uses in-memory processing to speed up data processing.

• Data is processed lazily, allowing for optimizations like pipelining.

• Spark DAG (Directed Acyclic Graph) scheduler optimizes task execution.

• Exam...read more
Answered by AI
Add your answer

Q1. Js typescript and react based questions
Add your answer

Q1. Similar to 1st round
Add your answer

Q1. Output list of palindrome strings from a given string.
Ans. 
Output list of palindrome strings from a given string.
• Iterate through each substring in the given string and check if it is a palindrome.

• Use two pointers approach to check if a substring is a palindrome.

• Store palindrome substrings in an array and return the array.
Answered by AI
View 1 more answer
Q2. Given a matrix, when you encounter a 0, make all the elements in the corresponding row and column to 0.
Ans. 
Given a matrix, replace rows and columns with 0 when encountering a 0.
• Iterate through the matrix and store the row and column indices of 0s in separate sets.

• Iterate through the sets and update the corresponding rows and columns to 0.
Answered by AI
Add your answer
Q3. Working of Kafka, the flow of a message, using partitions, load balancing with Consumers.
Ans. 
Kafka is a distributed streaming platform that allows for the flow of messages through topics, partitions, and consumers.
• Kafka is a distributed streaming platform that allows producers to publish messages to topics.

• Topics are divided into partitions, which allow for parallel processing and scalability.

• Producers can specify a key for a message, which determines the partition to which the message will be sent.

• Consumers c...read more
Answered by AI
Add your answer
Q4. Microservice based system design.
Add your answer
Q5. Design patterns - Factory
Add your answer