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SingleInterface Software Developer Interview Questions and Answers for Experienced

Updated 3 Sep 2021

SingleInterface Software Developer Interview Experiences for Experienced

1 interview found

I applied via Referral and was interviewed before Sep 2020. There were 3 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. What is REPL in node js. ?
  • Ans. 

    REPL stands for Read-Eval-Print-Loop. It is an interactive console for executing JavaScript code in Node.js.

    • REPL provides a way to test and debug code snippets quickly.

    • It can be accessed by running the 'node' command in the terminal.

    • REPL supports features like auto-completion, history, and syntax highlighting.

    • It can be used to experiment with Node.js APIs and modules.

    • REPL can also be used to interact with databases and...

  • Answered by AI
  • Q2. Datamodel in Node JS ?
  • Ans. 

    Node JS supports various datamodels including relational and NoSQL databases.

    • Node JS supports ORM libraries like Sequelize for relational databases.

    • Mongoose is a popular ODM for MongoDB in Node JS.

    • NoSQL databases like Cassandra and Redis can also be used with Node JS.

    • Datamodels can be defined using schemas and models in Node JS.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep Strong knowledge of Javascript framework .

Skills evaluated in this interview

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I appeared for an interview in Apr 2022.

Round 1 - Coding Test 

Round duration - 75 minutes
Round difficulty - Medium

Test Comprises of 3 coding questions and some MCQs

Round 2 - Video Call 

Round duration - 60 minutes
Round difficulty - Medium

2 coding questions of (1 easy and 1 medium level) on hackerrank code-pair with the Interviewer

Round 3 - Video Call 

(1 Question)

Round duration - 60 minutes
Round difficulty - Easy

This Round was based on CS fundamentals and One coding question was there as a Code-pair.

  • Q1. 

    Next Greater Element Problem Statement

    Given a list of integers of size N, your task is to determine the Next Greater Element (NGE) for every element. The Next Greater Element for an element X is the firs...

  • Ans. 

    Find the Next Greater Element for each element in a list of integers.

    • Iterate through the list of integers from right to left.

    • Use a stack to keep track of elements whose NGE is yet to be found.

    • Pop elements from the stack until a greater element is found or the stack is empty.

    • Assign the NGE as the top element of the stack or -1 if the stack is empty.

  • Answered by AI

Interview Preparation Tips

Professional and academic backgroundI completed Computer Science Engineering from Chandigarh Group of Colleges (CGC), Landran. I applied for the job as SDE - 1 in NoidaEligibility criteriaNo criteriaClearwater Analytics interview preparation:Topics to prepare for the interview - DSA, Java, OOPS, Microservices, REST APITime required to prepare for the interview - 2 monthsInterview preparation tips for other job seekers

Tip 1 : Require coding skills to pass the interview. 
Tip 2 : Brush up on Java Skills
Tip 3 : Brush up on OOPS

Application resume tips for other job seekers

Tip 1 : Keep it to one page
Tip 2 : Mention relevant skills as per the job

Final outcome of the interviewSelected

Skills evaluated in this interview

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Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I appeared for an interview in Apr 2025, where I was asked the following questions.

  • Q1. What is a multithreaded environment, and how would you develop an application that can run in that environment without any issues?
  • Ans. 

    A multithreaded environment allows multiple threads to execute concurrently, improving application performance and responsiveness.

    • Thread Management: Use thread pools to manage threads efficiently, reducing overhead from frequent thread creation and destruction.

    • Synchronization: Implement synchronization mechanisms (like mutexes or semaphores) to prevent race conditions when accessing shared resources.

    • Concurrency Control...

  • Answered by AI
  • Q2. What locking mechanisms are used in a multithreaded environment to prevent deadlock in critical sections?
  • Ans. 

    Locking mechanisms in multithreaded environments prevent deadlock by managing access to critical sections effectively.

    • Mutexes: A mutual exclusion lock that allows only one thread to access a resource at a time, preventing race conditions.

    • Semaphores: A signaling mechanism that controls access to a resource by maintaining a count, allowing multiple threads to access it up to a limit.

    • Read/Write Locks: These allow multiple...

  • Answered by AI

I appeared for an interview in Apr 2021.

Round 1 - Coding Test 

(2 Questions)

Round duration - 90 minutes
Round difficulty - Hard

Timing was late evening. Platform was good.

  • Q1. 

    Largest Cycle in Maze Problem Statement

    Given a maze represented by 'N' cells numbered from 0 to N-1, and an array arr of 'N' integers where arr[i] denotes the cell number that can be reached from the 'i'...

  • Ans. 

    Identify the length of the largest cycle in a maze represented by cells and an array of integers.

    • Iterate through each cell and find the cycle length using DFS or Floyd's Tortoise and Hare algorithm.

    • Handle self-cycles and cells with no exit by checking arr[i] = i and arr[i] = -1 respectively.

    • Output the length of the largest cycle found or -1 if no cycles exist.

  • Answered by AI
  • Q2. 

    Ninja and the Maze Problem Statement

    Ninja is stuck in a maze represented as a 2D grid. He can move in four directions (Up, Down, Left, Right) until he hits a wall ('1'). Once stopped, he can choose a new...

  • Ans. 

    Determine if Ninja can reach the destination in a maze by moving in four directions until hitting a wall.

    • Create a function to traverse the maze using depth-first search or breadth-first search.

    • Keep track of visited cells to avoid infinite loops.

    • Return 'True' if destination is reachable, 'False' otherwise.

  • Answered by AI

Interview Preparation Tips

Professional and academic backgroundI completed Computer Science Engineering from Chitkara University. Eligibility criteriaAbove 6 CGPAJUSPAY interview preparation:Topics to prepare for the interview - Data Structures, Pointers, OOPS, System Design, Algorithms, Dynamic ProgrammingTime required to prepare for the interview - 2.5 monthsInterview preparation tips for other job seekers

Tip 1 : Do some projects.
Tip 2 : Practice dynamic programming.
 

Application resume tips for other job seekers

Tip 1 : Keep it short.
Tip 2 : Do not put false things on resume.

Final outcome of the interviewRejected

Skills evaluated in this interview

I appeared for an interview in Apr 2021.

Round 1 - Coding Test 

(1 Question)

Round duration - 90 minutes
Round difficulty - Hard

Timing was late evening . Platform was good.

  • Q1. 

    Largest Cycle in Maze Problem Statement

    Given a maze represented by 'N' cells numbered from 0 to N-1, and an array arr of 'N' integers where arr[i] denotes the cell number that can be reached from the 'i'...

  • Ans. 

    Identify the length of the largest cycle in a maze represented by cells and an array of integers.

    • Iterate through each cell and find the cycle length using DFS or Floyd's Tortoise and Hare algorithm.

    • Keep track of visited cells to avoid infinite loops.

    • Return the length of the largest cycle found or -1 if no cycles exist.

  • Answered by AI

Interview Preparation Tips

Professional and academic backgroundI completed Computer Science Engineering from Chitkara University. Eligibility criteriaAbove 6 CGPAJUSPAY interview preparation:Topics to prepare for the interview - Data Structures, Pointers, OOPS, System Design, Algorithms, Dynamic ProgrammingTime required to prepare for the interview - 3 monthsInterview preparation tips for other job seekers

Tip 1 : Do some projects
Tip 2 : Be good in data structure
 

Application resume tips for other job seekers

Tip 1 : Keep it short
Tip 2 : Don't try to add false things.

Final outcome of the interviewRejected

I appeared for an interview in Mar 2021.

Round 1 - Coding Test 

(1 Question)

Round duration - 90 minutes
Round difficulty - Medium

The coding round was 90 minutes with 2 question and the difficulty was mid-range and both were graph question

  • Q1. 

    Rat in a Maze Problem Statement

    You need to determine all possible paths for a rat starting at position (0, 0) in a square maze to reach its destination at (N-1, N-1). The maze is represented as an N*N ma...

  • Ans. 

    Find all possible paths for a rat in a maze from start to destination.

    • Use backtracking to explore all possible paths in the maze.

    • Keep track of visited cells to avoid revisiting them.

    • Explore all possible directions (up, down, left, right) from each cell.

    • Add the current direction to the path and recursively explore further.

    • When reaching the destination, add the path to the list of valid paths.

  • Answered by AI

Interview Preparation Tips

Professional and academic backgroundI applied for the job as SDE - 1 in BengaluruEligibility criteriacgpa above 7.5JUSPAY interview preparation:Topics to prepare for the interview - Python, data structure , algorithm, database , osTime required to prepare for the interview - 1 MonthInterview preparation tips for other job seekers

Tip 1 : Practice question and try to understand with using javascript
Tip 2 : The Elm Architecture. 
Tip 3 : Project matters

Application resume tips for other job seekers

Tip 1 : Have web development project
Tip 2 : learn purescript and node.js

Final outcome of the interviewRejected
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

3 Graph Questions Were asked of difficulty medium to hard.

Round 2 - Case Study 

Hackathon round which revolved around multithreading

Are these interview questions helpful?
Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Feb 2024. There were 3 interview rounds.

Round 1 - Coding Test 

They have their own coding platform. The questions are basically from tree.

Round 2 - Coding Test 

Tree of space question

Round 3 - Technical 

(2 Questions)

  • Q1. Previous round question solution
  • Q2. System design was asked.

Interview Preparation Tips

Topics to prepare for JUSPAY Software Developer interview:
  • tree
  • graph
  • system design
Interview preparation tips for other job seekers - Should have good knowledge of tree ,graph and system design.
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Leecode medium level question

Round 2 - Coding Test 

Leetcode Hard level Question

Round 3 - Technical 

(1 Question)

  • Q1. This is cto round asked some interview questions
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Aug 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

Computer Fundamentals

Round 2 - Technical 

(1 Question)

  • Q1. Flatten a binary tree
  • Ans. 

    Flatten a binary tree by converting it into a linked list in-place.

    • Use a recursive approach to flatten the binary tree.

    • Traverse the tree in a pre-order manner and keep track of the previous node.

    • Set the left child of each node to null and the right child to the next node in the linked list.

    • Example: Input: 1 -> 2 -> 5 -> 3 -> 4 -> null, Output: 1 -> null -> 2 -> null -> 3 -> null -> 4 -> null -> 5 -> null

  • Answered by AI

Skills evaluated in this interview

SingleInterface Interview FAQs

What are the top questions asked in SingleInterface Software Developer interview for experienced candidates?

Some of the top questions asked at the SingleInterface Software Developer interview for experienced candidates -

  1. What is REPL in node js...read more
  2. Datamodel in Node J...read more

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SingleInterface Software Developer Salary
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