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ZeMoSo Technologies Senior Software Engineer Interview Questions and Answers

Updated 9 Jun 2025

23 Interview questions

A Senior Software Engineer was asked 2mo ago
Q. Explain the adapter design pattern.
Ans. 

The Adapter Design Pattern allows incompatible interfaces to work together by converting one interface into another.

  • Promotes reusability by allowing existing classes to work with new interfaces.

  • Useful in integrating legacy code with new systems.

  • Example: A USB to Ethernet adapter allows a USB device to connect to an Ethernet network.

  • Can be implemented as a class adapter (using inheritance) or an object adapter (usi...

A Senior Software Engineer was asked 2mo ago
Q. Write a Java implementation of a singly linked list.
Ans. 

A singly linked list is a data structure consisting of nodes, where each node points to the next node in the sequence.

  • A node contains data and a reference to the next node.

  • The list has a head pointer to the first node and a tail pointer to the last node.

  • Common operations include insertion, deletion, and traversal.

  • Example of insertion: Adding a new node at the beginning or end of the list.

  • Example of deletion: Remov...

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A Senior Software Engineer was asked 2mo ago
Q. Explain the executor service.
Ans. 

Executor Service is a high-level API in Java for managing and controlling thread execution, simplifying concurrent programming.

  • Thread Pool Management: Executor Service manages a pool of threads, allowing for efficient reuse of threads and reducing overhead associated with thread creation.

  • Task Submission: It provides methods like submit() and invokeAll() to submit tasks for execution, enabling asynchronous processi...

A Senior Software Engineer was asked 2mo ago
Q. How do you calculate the sum of prime numbers using the Stream API in Java?
Ans. 

Calculate the sum of prime numbers using Java's Stream API for efficient processing.

  • Use IntStream.rangeClosed to generate a range of numbers.

  • Filter the numbers using a custom isPrime method.

  • Use sum() to calculate the total of the filtered prime numbers.

  • Example: IntStream.rangeClosed(1, 100).filter(this::isPrime).sum();

  • Define isPrime method to check if a number is prime.

A Senior Software Engineer was asked 2mo ago
Q. Write SQL join queries with two tables using aggregate functions.
Ans. 

SQL joins with aggregate functions combine data from tables and summarize results, useful for reporting and analysis.

  • Use INNER JOIN to combine rows from both tables based on a related column.

  • Example: SELECT department_id, COUNT(*) FROM employees INNER JOIN departments ON employees.department_id = departments.id GROUP BY department_id;

  • LEFT JOIN includes all records from the left table and matched records from the r...

A Senior Software Engineer was asked 2mo ago
Q. What is WebClient?
Ans. 

WebClient is a class in .NET for sending HTTP requests and receiving HTTP responses from a resource identified by a URI.

  • WebClient simplifies the process of making web requests in .NET applications.

  • It provides methods like DownloadString, UploadString, and DownloadFile for easy data transfer.

  • Example: Using WebClient to download a webpage content: `string content = client.DownloadString("http://example.com");`

  • It sup...

A Senior Software Engineer was asked 3mo ago
Q. How do you create a server and an API in Node?
Ans. 

Creating a server and API in Node involves using frameworks like Express to handle requests and responses.

  • Install Node.js and initialize a project with 'npm init'.

  • Install Express using 'npm install express'.

  • Create a server using 'const app = express();'.

  • Define API endpoints with 'app.get()', 'app.post()', etc.

  • Use 'app.listen(port, () => { console.log(`Server running on port ${port}`); });' to start the server.

  • E...

Are these interview questions helpful?
A Senior Software Engineer was asked
Q. Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get(key) - Get the value (will always be positive) of the key if the key exists in the ...
Ans. 

LRU cache is a data structure that stores the most recently used items, discarding the least recently used items when full.

  • Use a combination of a doubly linked list and a hashmap to efficiently implement LRU cache.

  • Keep track of the most recently used item at the head of the linked list and the least recently used item at the tail.

  • When a new item is accessed, move it to the head of the linked list and update the ha...

A Senior Software Engineer was asked
Q. Given the root of a binary tree, return its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node.
Ans. 

Height of a binary tree is the maximum number of edges on the longest path from the root node to a leaf node.

  • The height of an empty tree is -1.

  • The height of a tree with only one node is 0.

  • The height of a binary tree can be calculated recursively by finding the height of the left and right subtrees and adding 1 to the maximum of the two heights.

A Senior Software Engineer was asked
Q. Given an array containing only 0s and 1s, sort the array so that all 0s come before all 1s.
Ans. 

Sort an array of 0s and 1s in linear time complexity.

  • Use two pointers approach - one from the start and one from the end of the array.

  • Swap 0s to the left side and 1s to the right side until the pointers meet.

  • Time complexity: O(n), Space complexity: O(1)

ZeMoSo Technologies Senior Software Engineer Interview Experiences

28 interviews found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

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

  • Q1. Java specific questions such as Functional Interfaces, Authorization, List, Lambda Expression, etc
  • Q2. Coding questions, rather simple but conceptual like find perfect square root using binary search, and so on
  • Q3. Simple react questions on components, useEffect, a basic to-do app code and approach
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

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

  • Q1. Python oops and project experienced based questions
  • Q2. System design and coding questions
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

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

  • Q1. Calculate the sum of prime numbers using the Stream API in Java?
  • Ans. 

    Calculate the sum of prime numbers using Java's Stream API for efficient processing.

    • Use IntStream.rangeClosed to generate a range of numbers.

    • Filter the numbers using a custom isPrime method.

    • Use sum() to calculate the total of the filtered prime numbers.

    • Example: IntStream.rangeClosed(1, 100).filter(this::isPrime).sum();

    • Define isPrime method to check if a number is prime.

  • Answered by AI
  • Q2. SQL join queries with two table using aggregate functions
  • Ans. 

    SQL joins with aggregate functions combine data from tables and summarize results, useful for reporting and analysis.

    • Use INNER JOIN to combine rows from both tables based on a related column.

    • Example: SELECT department_id, COUNT(*) FROM employees INNER JOIN departments ON employees.department_id = departments.id GROUP BY department_id;

    • LEFT JOIN includes all records from the left table and matched records from the right ...

  • Answered by AI
  • Q3. Questions on inheritance, exception handling
  • Q4. Design patterns
  • Q5. What is webclient
  • Ans. 

    WebClient is a class in .NET for sending HTTP requests and receiving HTTP responses from a resource identified by a URI.

    • WebClient simplifies the process of making web requests in .NET applications.

    • It provides methods like DownloadString, UploadString, and DownloadFile for easy data transfer.

    • Example: Using WebClient to download a webpage content: `string content = client.DownloadString("http://example.com");`

    • It supports...

  • Answered by AI
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

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

  • Q1. Explain adaptor design pattern
  • Ans. 

    The Adapter Design Pattern allows incompatible interfaces to work together by converting one interface into another.

    • Promotes reusability by allowing existing classes to work with new interfaces.

    • Useful in integrating legacy code with new systems.

    • Example: A USB to Ethernet adapter allows a USB device to connect to an Ethernet network.

    • Can be implemented as a class adapter (using inheritance) or an object adapter (using co...

  • Answered by AI
  • Q2. Explain executor service
  • Ans. 

    Executor Service is a high-level API in Java for managing and controlling thread execution, simplifying concurrent programming.

    • Thread Pool Management: Executor Service manages a pool of threads, allowing for efficient reuse of threads and reducing overhead associated with thread creation.

    • Task Submission: It provides methods like submit() and invokeAll() to submit tasks for execution, enabling asynchronous processing.

    • Fu...

  • Answered by AI
  • Q3. Design ecommerce wesbite
  • Q4. Write the java implementation for singly linked list
  • Ans. 

    A singly linked list is a data structure consisting of nodes, where each node points to the next node in the sequence.

    • A node contains data and a reference to the next node.

    • The list has a head pointer to the first node and a tail pointer to the last node.

    • Common operations include insertion, deletion, and traversal.

    • Example of insertion: Adding a new node at the beginning or end of the list.

    • Example of deletion: Removing a...

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in May 2024. There were 5 interview rounds.

Round 1 - Coding Test 

2 Coding questions and 15 MCQs

Difficulty - Intermediate

Round 2 - Technical 

(1 Question)

  • Q1. Basic NodeJS related questions
Round 3 - One-on-one 

(1 Question)

  • Q1. System Design questions and coding questions
Round 4 - One-on-one 

(1 Question)

  • Q1. Nodejs fundamental questions and system design
Round 5 - HR 

(1 Question)

  • Q1. Salary discussion and growth expectations
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Apr 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

Basic mcqs related to the language, two coding questions

Round 2 - One-on-one 

(1 Question)

  • Q1. General overview of your experience, some coding and technical questions
Round 3 - One-on-one 

(1 Question)

  • Q1. Advanced technical and coding rounds, was asked to write code for questions asked

Interview Preparation Tips

Topics to prepare for ZeMoSo Technologies Senior Software Engineer interview:
  • Node.Js
  • React.Js
  • Javascript
Interview preparation tips for other job seekers - Just be confident
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in Mar 2024. There were 3 interview rounds.

Round 1 - Coding Test 

The test was on the Coderbyte platform which consisted of a few general aptitude questions, one coding question on backend development and one coding question on problem-solving

Round 2 - Technical 

(1 Question)

  • Q1. Java8 questions like streams, lambda etc. Spring Boot questions Microservices principles
Round 3 - Technical 

(1 Question)

  • Q1. Problem-solving questions using array and stack Questions on java and spring boot

Interview Preparation Tips

Topics to prepare for ZeMoSo Technologies Senior Software Engineer interview:
  • Java
  • Spring Boot
  • DSA
  • java8
Interview preparation tips for other job seekers - If you are good at problem-solving and good in Java along with java8 features and Spring Boot or prepared to crack the interview easily.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in Feb 2024. There were 5 interview rounds.

Round 1 - Coding Test 

There were 2 to 3 easy to mid level Coding question. Time duration is one hour

Round 2 - Technical 

(1 Question)

  • Q1. One coding question and detailed discussion on Java, Spring Boot and microServices
Round 3 - Technical 

(1 Question)

  • Q1. One Coding Question and detailed discussion on Java 8 and above
Round 4 - Behavioral 

(1 Question)

  • Q1. One coding question and was asked to write the logic. Basically this round was to assess the problem solving skills
Round 5 - HR 

(1 Question)

  • Q1. Salary Discussion

Interview Preparation Tips

Interview preparation tips for other job seekers - Practice lots of Arrays and String questions
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. NodeJs architecture
  • Q2. Middleware in nodejs
  • Ans. 

    Middleware in Node.js is a function that has access to the request and response objects, and can modify or terminate the request-response cycle.

    • Middleware functions are executed sequentially in the order they are defined.

    • They can be used for tasks such as logging, authentication, error handling, etc.

    • Example: Express.js uses middleware to handle requests before they reach the route handler.

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Mar 2024. There were 3 interview rounds.

Round 1 - Coding Test 

It was a online test having coding questions and aptitude questions.

Round 2 - One-on-one 

(1 Question)

  • Q1. Database related questions
Round 3 - Technical 

(1 Question)

  • Q1. Javascript and coding questions

Top trending discussions

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Interview Tips & Stories
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works at
Cvent
Can speak English, can’t deliver in interviews
I feel like I can't speak fluently during interviews. I do know english well and use it daily to communicate, but the moment I'm in an interview, I just get stuck. since it's not my first language, I struggle to express what I actually feel. I know the answer in my head, but I just can’t deliver it properly at that moment. Please guide me
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ZeMoSo Technologies Interview FAQs

How many rounds are there in ZeMoSo Technologies Senior Software Engineer interview?
ZeMoSo Technologies interview process usually has 3-4 rounds. The most common rounds in the ZeMoSo Technologies interview process are Technical, Coding Test and One-on-one Round.
How to prepare for ZeMoSo Technologies Senior Software Engineer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at ZeMoSo Technologies. The most common topics and skills that interviewers at ZeMoSo Technologies expect are Javascript, Agile, Big Data, Coding and JQuery.
What are the top questions asked in ZeMoSo Technologies Senior Software Engineer interview?

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

  1. Write code based on situation with proper implementation using Design patterns ...read more
  2. New technologies learnt in last 6 mont...read more
  3. Coding question in which you need to write optimize progr...read more
How long is the ZeMoSo Technologies Senior Software Engineer interview process?

The duration of ZeMoSo Technologies Senior Software Engineer interview process can vary, but typically it takes about less than 2 weeks to complete.

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Overall Interview Experience Rating

4.2/5

based on 29 interview experiences

Difficulty level

Moderate 100%

Duration

Less than 2 weeks 63%
2-4 weeks 33%
4-6 weeks 4%
View more
ZeMoSo Technologies Senior Software Engineer Salary
based on 93 salaries
₹15 L/yr - ₹26 L/yr
17% more than the average Senior Software Engineer Salary in India
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ZeMoSo Technologies Senior Software Engineer Reviews and Ratings

based on 22 reviews

3.5/5

Rating in categories

3.8

Skill development

3.4

Work-life balance

3.8

Salary

3.3

Job security

3.4

Company culture

3.3

Promotions

3.4

Work satisfaction

Explore 22 Reviews and Ratings
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