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Xeno Senior Software Engineer Interview Questions and Answers

Updated 23 Aug 2024

Xeno Senior Software Engineer Interview Experiences

1 interview found

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

(2 Questions)

  • Q1. Given a data set of hotel you need to find number of booking.
  • Q2. SQL Query based upon join leetcode.

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 Questionnaire 

2 Questions

  • Q1. I interviewed for Qlikview Team, So most questions were regarding qlikview.
  • Q2. Some questions were regarding SQL also.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed in Dec 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 Resume tips
Round 2 - Technical 

(1 Question)

  • Q1. Based on core concepts of JavaScript and React fundamentals.
Round 3 - Technical 

(1 Question)

  • Q1. Advance topics of React and JavaScript and easy and medium level of DS algo
Round 4 - Technical 

(1 Question)

  • Q1. More like technical discussion on services that helps them to manage their product and problem solving if discussion not go long.
Round 5 - HR 

(1 Question)

  • Q1. Compensation and others formalities

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on core things and have in depth knowledge of your Techs
Round 1 - One-on-one 

(2 Questions)

  • Q1. Internal Working Of Hashmap, Java 8 features and two DSA questions one was based on the array and the second one was based on LinkedList. The first interview round was very excellent that's why they conduc...
  • Q2. Detect loop in a LinkedList,
  • Ans. 

    Detect loop in a LinkedList

    • 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
Round 2 - One-on-one 

(2 Questions)

  • Q1. System Design HLD and LLD round which was the final round.
  • Q2. HLD and LLD Designing round: Desing Architecture for ChatBot and Company Employee Data Management System.

Interview Preparation Tips

Interview preparation tips for other job seekers - Have Good Practice in DSA and System Desing, Basic and OOPS concept of any One Programming Language should be very clear

Skills evaluated in this interview

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

I applied via Recruitment Consulltant and was interviewed before Jun 2023. There were 2 interview rounds.

Round 1 - One-on-one 

(2 Questions)

  • Q1. Basic js question closure, async defer and all
  • Q2. Create autosuggest debounce, pollyfill
  • Ans. 

    Autosuggest debounce is a feature that delays the search suggestions until the user stops typing, and a polyfill is a piece of code that provides functionality that is not natively supported by the browser.

    • Implement a debounce function to delay the autosuggest feature until the user stops typing.

    • Use a polyfill to provide support for the autosuggest feature in browsers that do not natively support it.

    • Example: Implement ...

  • Answered by AI
Round 2 - Technical 

(4 Questions)

  • Q1. A programming question
  • Q2. React-native architecture and flatlist
  • Q3. Kadanes algorithm
  • Ans. 

    Kadane's algorithm is used to find the maximum subarray sum in an array of integers.

    • Iterate through the array and keep track of the maximum sum ending at each index.

    • At each index, choose between extending the previous subarray or starting a new subarray.

    • Example: For array [-2, 1, -3, 4, -1, 2, 1, -5, 4], the maximum subarray sum is 6 (from index 3 to 6).

  • Answered by AI
  • Q4. Scalablity, performance

Interview Preparation Tips

Interview preparation tips for other job seekers - Advance js topics and programming questions, scalablity and performance optimization

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Android activity lifecycle
  • Q2. Android MVVM architecture
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via LinkedIn and was interviewed in May 2024. There was 1 interview round.

Round 1 - Coding Test 

It was a ideal machine coding round. Consisting of a question to be completed within 45 mins. For a given manager to employee hierarchy, count direct + indirect repartees.

Interview Preparation Tips

Topics to prepare for Uber Senior Software Engineer interview:
  • Data Structures
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Referral and was interviewed in Sep 2024. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Print the nodes of a n-ary tree in an arc wise manner as seen from the outside.
  • Ans. 

    Print nodes of n-ary tree in arc wise manner from outside

    • Traverse the tree level by level from outside to inside

    • Use a queue to keep track of nodes at each level

    • Print the nodes at each level in a clockwise or anticlockwise manner

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Uber Senior Software Engineer interview:
  • n-ary tree

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
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 Resume tips
Round 2 - Coding Test 

Mostly DSA expect DP, graph problems

Round 3 - Technical 

(1 Question)

  • Q1. Graph traversal + DP
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Xeno Interview FAQs

How many rounds are there in Xeno Senior Software Engineer interview?
Xeno interview process usually has 1 rounds. The most common rounds in the Xeno interview process are Technical.
What are the top questions asked in Xeno Senior Software Engineer interview?

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

  1. Given a data set of hotel you need to find number of booki...read more
  2. SQL Query based upon join leetco...read more

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