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Jio Platforms Software Developer Interview Questions and Answers
10 Interview questions
Rolling hash is a hashing technique used in data structures and algorithms to efficiently compare substrings of text.
Rolling hash is used in algorithms like Rabin-Karp string matching algorithm.
It involves updating the hash value of a substring by removing the contribution of the first character and adding the contribution of the next character.
It is useful for comparing substrings in constant time complexity.
Print Fibonacci series
Start with 0 and 1 as the first two numbers
Add the previous two numbers to get the next number in the series
Repeat until desired number of terms is reached
Synchronization in Java ensures that only one thread can access a shared resource at a time.
Synchronization is achieved using the synchronized keyword in Java.
It can be applied to methods or blocks of code.
Example: synchronized void myMethod() { // code }
Multi threading in Java allows multiple threads to execute concurrently, improving performance and responsiveness.
Multi threading is achieved in Java by extending the Thread class or implementing the Runnable interface.
Threads share the same memory space, allowing them to communicate and synchronize using methods like wait(), notify(), and notifyAll().
Concurrency issues like race conditions and deadlocks can occur...
Rotate Linked List Problem Statement
Given a linked list consisting of 'N' nodes and an integer 'K', your task is to rotate the linked list by 'K' positions in a clockwise direction.
Example:
Input:
Lin...
Rotate a linked list by K positions in a clockwise direction.
Traverse the linked list to find the length and the last node.
Connect the last node to the head to form a circular linked list.
Find the new head by moving (length - K) steps from the original head.
Break the circular list at the new head to get the rotated linked list.
Unique Paths Problem Statement
Given the dimensions of an M x N matrix, determine the total number of unique paths from the top-left corner to the bottom-right corner of the matrix.
Allowed moves are only...
The problem involves finding the total number of unique paths from the top-left corner to the bottom-right corner of an M x N matrix with allowed moves only to the right or down.
Use dynamic programming to solve the problem efficiently.
Create a 2D array to store the number of unique paths for each cell in the matrix.
Initialize the first row and first column with 1 as there is only one way to reach each cell in the ...
Rotting Oranges Problem Statement
You are given a grid containing oranges where each cell of the grid can contain one of the three integer values:
- 0 - representing an empty cell
- 1 - representing a fres...
Find the minimum time required to rot all fresh oranges in a grid.
Use Breadth First Search (BFS) to simulate the rotting process.
Track the time taken to rot all oranges and return the result.
Handle edge cases like no fresh oranges or unreachable fresh oranges.
Consider using a queue to efficiently process adjacent oranges.
Min Stack Problem Statement
Design a special stack that supports the following operations in constant time:
Push(num): Insert the given number into the stack.Pop: Remove and return the top element f...
Design a special stack that supports constant time operations like push, pop, top, and getMin.
Use two stacks - one to store the elements and another to store the minimum values encountered so far
When pushing, check if the element is smaller than the current minimum and update the minimum stack accordingly
For pop, top, and getMin operations, simply access the top elements of the respective stacks
Ensure to handle ca...
Circular Tour Problem Statement
Consider a circular path with N petrol pumps. Each pump is numbered from 0 to N-1. Every petrol pump provides:
- The amount of petrol available at the pump.
- The distance...
The task is to find the first petrol pump from which a truck can complete a full circle or determine if it's impossible.
Iterate through each petrol pump and calculate the remaining petrol after reaching the next pump.
If the remaining petrol is negative at any point, reset the starting pump to the next pump and continue.
If the total remaining petrol is non-negative after completing the circle, return the index of t...
Binary Palindrome Check
Given an integer N, determine whether its binary representation is a palindrome.
Input:
The first line contains an integer 'T' representing the number of test cases.
The next 'T' ...Check if the binary representation of a given integer is a palindrome.
Convert the integer to binary representation.
Check if the binary representation is a palindrome by comparing it with its reverse.
Return true if it is a palindrome, false otherwise.
Jio Platforms Software Developer Interview Experiences
18 interviews found
Anonymous
2 Coding Problems (easy to medium difficulty) and 10 MCQ's regarding Basic CS subjects
(3 Questions)
- Q1. Introduction, education background, interests etc
- Q2. Questions regarding OOPs, OS, Networking, DBMS (Core CSE subjects)
- Q3. Coding question
(2 Questions)
- Q1. Quick Introduction
- Q2. Why Jio and what do you expect from JPL?
Interview Preparation Tips
Selected
I appeared for an interview in May 2025, where I was asked the following questions.
- Q1. Online Coding Exam. Two medium questions. One on DP and one was on Binary Trees. Round1: Number of Islands question. DBMS, OOPS, OS, etc.
- Q2. Round-2: Job appplication platform using Mern stack, every detail of the project.
Hashing based questions , one DP and one graph
(2 Questions)
- Q1. Resume discussion
- Q2. Rolling hash dsa problem
- Ans.
Rolling hash is a hashing technique used in data structures and algorithms to efficiently compare substrings of text.
Rolling hash is used in algorithms like Rabin-Karp string matching algorithm.
It involves updating the hash value of a substring by removing the contribution of the first character and adding the contribution of the next character.
It is useful for comparing substrings in constant time complexity.
Interview Preparation Tips
Skills evaluated in this interview
MCQs with one coding question
(2 Questions)
- Q1. Multi Threading in Java
- Ans.
Multi threading in Java allows multiple threads to execute concurrently, improving performance and responsiveness.
Multi threading is achieved in Java by extending the Thread class or implementing the Runnable interface.
Threads share the same memory space, allowing them to communicate and synchronize using methods like wait(), notify(), and notifyAll().
Concurrency issues like race conditions and deadlocks can occur in m...
- Q2. Synchronization in Java
- Ans.
Synchronization in Java ensures that only one thread can access a shared resource at a time.
Synchronization is achieved using the synchronized keyword in Java.
It can be applied to methods or blocks of code.
Example: synchronized void myMethod() { // code }
Skills evaluated in this interview
vaibhav shakya
Selected
I applied via Campus Placement and was interviewed in Oct 2023. There were 3 interview rounds.
2 Easy level question
(2 Questions)
- Q1. Related to Projects
- Q2. Situation based coding questions
(2 Questions)
- Q1. 3 Jug Problem asked by HR
- Q2. Last Internship
- Ans.
Worked as a software developer intern at XYZ Company
Developed a web application using React and Node.js
Collaborated with team members to troubleshoot and debug code
Participated in code reviews and provided feedback for improvements
Selected
I applied via Naukri.com and was interviewed in Jan 2023. There were 4 interview rounds.
(1 Question)
- Q1. Scenario Based Questions? API Based Questions? Framework Related Questions? Tools Related Questions?
(1 Question)
- Q1. Previous Projects Related Questions? Programming languages? Recent Development Technologies Related Questions? Cloud, CI Tools Related Questions?
(1 Question)
- Q1. Behavioral Questions? Technical skills relevant qualifications? Previous experience relevant Questions? Databases, Queries? Coding? API ?
Interview Preparation Tips
Communication has a priority so be confident while answering.
In 3rd round u need to be very well prepared as it will be taken by one of most senior member.
Show learn ability.
I applied via Campus Placement
Only 2 coding question s were asked.
(2 Questions)
- Q1. 1.Very basic questions like print prime numbers in a range. 2.Print Fibonacci series.
- Q2. Print Fibonacci series
- Ans.
Print Fibonacci series
Start with 0 and 1 as the first two numbers
Add the previous two numbers to get the next number in the series
Repeat until desired number of terms is reached
Interview Preparation Tips
Be good in the interview and not arrogant even though you did well you may not get selected because of your behaviour.so please be calm.
Skills evaluated in this interview
Selected
I applied via Referral and was interviewed before Mar 2023. There was 1 interview round.
(1 Question)
- Q1. React hooks and projects
I applied via Campus Placement and was interviewed before Aug 2022. There were 4 interview rounds.
In coding round their is 2 coding questions and 24 mcq question based on computer fundamentals
(1 Question)
- Q1. Introduced yourself What is your last year project Project based questions
(1 Question)
- Q1. Asking basic code like prime number palindrome number searching in array
Interview Preparation Tips
Uneza Nakhwa
Selected
I applied via Approached by Company and was interviewed in Jul 2022. There were 2 interview rounds.
(2 Questions)
- Q1. Introduction about yourself. Project explanation. Which framework you have worked on. Hardly 20mins interview scheduled. Interviewer was very good and friendly. SQL questions. Oop concepts.
- Ans. 1. Oop concepts
- Q2. 2. Collection framework.
Interview Preparation Tips
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The duration of Jio Platforms Software Developer interview process can vary, but typically it takes about less than 2 weeks to complete.
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