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Porter Senior Software Engineer Interview Questions and Answers

Updated 25 Jul 2024

Porter Senior Software Engineer Interview Experiences

2 interviews found

Senior Software Engineer Interview Questions & Answers

user image Namrata Chatekar

posted on 25 Jul 2024

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - One-on-one 

(1 Question)

  • Q1. Leetcode medium coding question
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
-
Result
Selected Selected

I applied via Company Website and was interviewed in Jan 2024. There were 2 interview rounds.

Round 1 - Group Discussion 

Java, springboot, mysql

Round 2 - Technical 

(1 Question)

  • Q1. System design question

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Interview questions from similar companies

I applied via Recruitment Consultant and was interviewed in May 2021. There were 4 interview rounds.

Interview Questionnaire 

10 Questions

  • Q1. First-round was an online test on hacker rank. There were 4 questions related to the array, string, and tree.
  • Q2. Create an immutable class.
  • Ans. 

    An immutable class is a class whose instances cannot be modified after creation.

    • Make all fields private and final

    • Don't provide any setter methods

    • Ensure that any mutable objects passed to the constructor are defensively copied

    • Make the class final so that it cannot be subclassed

  • Answered by AI
  • Q3. Create a Singelton pattern.
  • Ans. 

    Singleton pattern ensures only one instance of a class is created and provides a global point of access to it.

    • Create a private constructor to prevent direct instantiation of the class.

    • Create a private static instance of the class.

    • Create a public static method to access the instance, and create the instance if it doesn't exist.

    • Ensure thread safety by using synchronized keyword or double-checked locking.

  • Answered by AI
  • Q4. Difference between Vector and ArrayList.
  • Ans. 

    Vector is synchronized and ArrayList is not. Vector is thread-safe and ArrayList is not.

    • Vector is a legacy class and ArrayList is a part of the Java Collection Framework.

    • Vector is synchronized which means only one thread can access it at a time, while ArrayList is not.

    • Vector is thread-safe which means it can be used in a multi-threaded environment, while ArrayList is not.

    • Vector is slower than ArrayList because of synch...

  • Answered by AI
  • Q5. Create Linked List without using the internal library and provide the functionality of add delete find.
  • Ans. 

    Create Linked List without using internal library and provide add, delete, find functionality.

    • Create a Node class with data and next pointer

    • Create a LinkedList class with head pointer and methods to add, delete, and find nodes

    • Use a loop to traverse the list and perform operations

    • Handle edge cases such as adding to an empty list or deleting the head node

  • Answered by AI
  • Q6. One question was related to binary search.
  • Q7. Few more questions related to java.
  • Q8. The architecture of the current system.
  • Ans. 

    The current system follows a microservices architecture.

    • The system is divided into multiple independent services.

    • Each service has its own database and communicates with other services through APIs.

    • The architecture allows for scalability and flexibility.

    • Examples of microservices used in the system include user authentication, payment processing, and inventory management.

  • Answered by AI
  • Q9. Find the total no of the island in a 2d matrix. Working code was required.
  • Ans. 

    Find the total no of islands in a 2D matrix.

    • Use DFS or BFS to traverse the matrix.

    • Mark visited cells to avoid repetition.

    • Count the number of islands found.

  • Answered by AI
  • Q10. Find loop in a linked list.
  • Ans. 

    Loop detection in a linked list.

    • Use two pointers, one moving at twice the speed of the other.

    • If there is a loop, the faster pointer will eventually catch up to the slower one.

    • If there is no loop, the faster pointer will reach the end of the list.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Before the interview brush up on the Linked list, Tree, and array. This is a common interview problem asked in Snapdeal.

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Mar 2023. There was 1 interview round.

Round 1 - Coding Test 

Basic coding test from hackerearth.

Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Mar 2022. There were 5 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Coding Test 

Mettle Test based on DP based approach

Round 3 - Technical 

(1 Question)

  • Q1. Based on Tree, Graph, Segment Tree
Round 4 - Technical 

(1 Question)

  • Q1. DS algo based on DP, Trees, Graphs
Round 5 - Technical 

(3 Questions)

  • Q1. Systed Design Round 1
  • Q2. Design a Distributed Queue to have functionality similar to Kafka.
  • Ans. 

    Design a distributed queue similar to Kafka.

    • Use a distributed architecture with multiple brokers and partitions.

    • Implement a publish-subscribe model for producers and consumers.

    • Ensure fault tolerance and high availability through replication and leader election.

    • Use a log-based storage system for messages and offsets.

    • Provide support for message ordering and retention policies.

    • Implement a scalable and efficient message de...

  • Answered by AI
  • Q3. Design Price Tagger System
  • Ans. 

    Design a Price Tagger System

    • Identify the products to be tagged with prices

    • Determine the pricing strategy (e.g. cost-plus, value-based, etc.)

    • Choose the appropriate tagging technology (e.g. barcode, RFID, etc.)

    • Develop a user-friendly interface for tagging and updating prices

    • Implement a database to store product and pricing information

    • Integrate with point-of-sale systems for accurate pricing at checkout

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare DS and Algo and System Design questions alot and do lot of practice

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Design Search Systems
  • Ans. 

    Designing search systems involves creating efficient algorithms and data structures to quickly retrieve relevant information.

    • Understand the data structure of the search system (e.g. inverted index, trie)

    • Implement efficient search algorithms (e.g. binary search, hash tables)

    • Consider scalability and performance optimization techniques (e.g. caching, indexing)

    • Include user-friendly features like autocomplete and spell corr...

  • Answered by AI

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Jan 2023. There were 3 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Rotate matrix by 90 degree
  • Ans. 

    Rotate a matrix by 90 degrees.

    • Transpose the matrix

    • Reverse each row of the transposed matrix

  • Answered by AI
  • Q2. Longest substring with unique characters
  • Ans. 

    The question asks for finding the longest substring in a given string that contains only unique characters.

    • Iterate through the string and keep track of the current substring

    • Use a set to check for duplicate characters

    • Update the longest substring if a longer one is found

  • Answered by AI
Round 2 - Technical 

(1 Question)

  • Q1. A trie question
Round 3 - Case Study 

Ecommerce hight level design

Interview Preparation Tips

Interview preparation tips for other job seekers - be prepared

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in May 2021. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Data Structures related 2 round & 1 round system Design

Interview Preparation Tips

Interview preparation tips for other job seekers - Work on DS and Design skills. No graphs and DP problems were asked
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Node JS internal
  • Q2. Previous project discussion
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed before Jun 2023. There were 4 interview rounds.

Round 1 - Assignment 

Machine coding - design food ordering service,

Round 2 - Technical 

(2 Questions)

  • Q1. Sort array having 0 , 1 and 2. do it in single pass
  • Ans. 

    Use Dutch National Flag algorithm to sort array of 0s, 1s, and 2s in single pass.

    • Initialize three pointers low = 0, mid = 0, high = n-1 where n is the length of the array.

    • Iterate through the array and swap elements based on their values and positions.

    • Example: Input array ['0', '1', '2', '0', '1', '2'] should be sorted as ['0', '0', '1', '1', '2', '2'].

  • Answered by AI
  • Q2. Given tree and list of nodes to be deleted. return all new trees created after the deletion
  • Ans. 

    Return new trees after deleting specified nodes from a given tree

    • Traverse the tree and delete nodes that match the given list

    • For each deleted node, create a new tree with the remaining nodes

    • Return all new trees created after deletion

  • Answered by AI
Round 3 - system design 

(1 Question)

  • Q1. Design Restaurant management sytem
  • Ans. 

    Restaurant management system to streamline operations, orders, inventory, and customer service.

    • Include features for table management, order processing, menu customization, inventory tracking, and customer feedback.

    • Implement user roles for staff, managers, and administrators with varying levels of access and permissions.

    • Integrate payment processing systems for seamless transactions and reporting.

    • Utilize data analytics t...

  • Answered by AI
Round 4 - Behavioral 

(2 Questions)

  • Q1. Discussed about projects in depth
  • Q2. Question around redis, kafka and all

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare system design nicely.

Skills evaluated in this interview

Porter Interview FAQs

How many rounds are there in Porter Senior Software Engineer interview?
Porter interview process usually has 1-2 rounds. The most common rounds in the Porter interview process are Group Discussion, Technical and One-on-one Round.
What are the top questions asked in Porter Senior Software Engineer interview?

Some of the top questions asked at the Porter Senior Software Engineer interview -

  1. Leetcode medium coding quest...read more
  2. system design quest...read more

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Porter Senior Software Engineer Interview Process

based on 2 interviews

Interview experience

4
  
Good
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Porter Senior Software Engineer Salary
based on 9 salaries
₹22 L/yr - ₹34 L/yr
59% more than the average Senior Software Engineer Salary in India
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