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Infosys Senior Systems Engineer Interview Questions and Answers

Updated 3 Jul 2025

171 Interview questions

🔥 Asked by recruiter 4 times
A Senior Systems Engineer was asked 1w ago
Q. What are the core concepts of OOPS?
Ans. 

OOP (Object-Oriented Programming) is a programming paradigm based on objects and classes to structure software design.

  • Encapsulation: Bundling data and methods that operate on the data within one unit (e.g., a class).

  • Inheritance: Mechanism to create a new class using properties and methods of an existing class (e.g., a 'Dog' class inheriting from an 'Animal' class).

  • Polymorphism: Ability to present the same interfac...

A Senior Systems Engineer was asked 2w ago
Q. What is the definition of language?
Ans. 

Language is a structured system of communication using symbols, sounds, or gestures to convey meaning.

  • Language can be spoken, written, or signed, such as English, Spanish, or American Sign Language.

  • It consists of grammar, vocabulary, and syntax that govern how words are combined.

  • Language evolves over time, adapting to cultural and societal changes, like the emergence of slang.

  • It serves various functions, including...

Senior Systems Engineer Interview Questions Asked at Other Companies

asked in Infosys
Q1. 2. Explain COMP, COMP-2, COMP-3 and Display. What are the differe ... read more
asked in Infosys
Q2. 1. Explain COND parameter in JCL. What parameters can be coded bo ... read more
asked in Siemens
Q3. LRU Cache Design Question Design a data structure for a Least Rec ... read more
asked in Siemens
Q4. Nth Prime Number Problem Statement Find the Nth prime number give ... read more
asked in Infosys
Q5. What is a Data Dictionary, and can you explain all the elements o ... read more
A Senior Systems Engineer was asked 3mo ago
Q. What is an index in Python?
Ans. 

In Python, an index refers to the position of an element in a sequence like a list or string.

  • Indexes in Python are zero-based, meaning the first element is at index 0.

  • For example, in the list `my_list = [10, 20, 30]`, `my_list[0]` returns 10.

  • Negative indexing allows access from the end, e.g., `my_list[-1]` returns 30.

  • Strings are also indexed; for instance, `my_string = 'hello'`, `my_string[1]` returns 'e'.

  • Attempti...

A Senior Systems Engineer was asked 3mo ago
Q. What is the first step you would take if the system crashed due to your changes?
Ans. 

Assess the situation, gather information, and implement a rollback to restore system functionality quickly.

  • Assess the impact: Determine which systems are affected and the severity of the crash.

  • Gather logs: Check system logs and error messages to identify what changes caused the crash.

  • Communicate: Inform stakeholders about the issue and the steps being taken to resolve it.

  • Rollback changes: If possible, revert to th...

A Senior Systems Engineer was asked 3mo ago
Q. What is the difference between a+b^2 and (a+b)^2?
Ans. 

The expressions a+b2 and (a+b)2 represent different mathematical operations with distinct results.

  • a+b2 means 'a plus b squared', calculated as a + (b * b). Example: If a=2 and b=3, then 2 + 3^2 = 2 + 9 = 11.

  • (a+b)2 means 'the sum of a and b squared', calculated as (a + b) * (a + b). Example: If a=2 and b=3, then (2 + 3)^2 = 5^2 = 25.

  • The first expression focuses on b's value, while the second combines both a and b b...

A Senior Systems Engineer was asked 3mo ago
Q. Write an SQL query to get the highest mark scored by students.
Ans. 

SQL query to find the highest marks scored by students from a database table.

  • Use the SELECT statement to retrieve data from the table containing student marks.

  • Utilize the MAX() function to find the highest mark in the specified column.

  • Example SQL query: SELECT MAX(mark) AS highest_mark FROM students;

  • Consider using GROUP BY if you want to find the highest mark per student or category.

  • Ensure the table name and colum...

A Senior Systems Engineer was asked 3mo ago
Q. What are the functional interfaces?
Ans. 

Functional interfaces define the interactions between system components, specifying inputs, outputs, and behaviors.

  • They enable communication between different system modules.

  • Examples include APIs, user interfaces, and hardware interfaces.

  • Functional interfaces help in defining system requirements and constraints.

  • They can be documented using UML diagrams or interface specifications.

Are these interview questions helpful?
🔥 Asked by recruiter 9 times
A Senior Systems Engineer was asked 3mo ago
Q. What is dependency injection?
Ans. 

Dependency injection is a design pattern that allows for the decoupling of components in software development.

  • Promotes loose coupling between classes, making code easier to manage and test.

  • Facilitates easier unit testing by allowing mock dependencies.

  • Commonly used in frameworks like Spring (Java) and Angular (JavaScript).

  • Example: Instead of a class creating its own dependencies, they are provided externally.

  • Enhanc...

A Senior Systems Engineer was asked 5mo ago
Q. What is the difference between high-level and low-level coding languages?
Ans. 

High level languages are closer to human language and easier to read/write, while low level languages are closer to machine code and harder to read/write.

  • High level languages are more abstract and require less detailed instructions.

  • Low level languages are more specific and require more detailed instructions.

  • Examples of high level languages include Python, Java, and C#.

  • Examples of low level languages include Assemb...

🔥 Asked by recruiter 2 times
A Senior Systems Engineer was asked 6mo ago
Q. Explain the concepts of Object-Oriented Programming (OOP).
Ans. 

OOP is a programming paradigm based on the concept of objects, which can contain data in the form of fields and code in the form of procedures.

  • OOP focuses on creating objects that interact with each other to solve problems.

  • Encapsulation: Objects can encapsulate data and behavior within a single unit.

  • Inheritance: Objects can inherit attributes and methods from parent objects.

  • Polymorphism: Objects can take on differ...

Infosys Senior Systems Engineer Interview Experiences

283 interviews found

Interview experience
1
Bad
Difficulty level
Easy
Process Duration
More than 8 weeks
Result
No response

I appeared for an interview in Jan 2025.

Round 1 - Technical 

(1 Question)

  • Q1. I recently appeared for an interview at Infosys for the Senior System Engineer (Spring Boot) role. The interview focused on core Java concepts, multithreading, and functional programming, along with some c...
Interview experience
1
Bad
Difficulty level
Moderate
Process Duration
6-8 weeks
Result
No response

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

  • Q1. What is thymleaf
  • Ans. 

    Thymeleaf is a modern server-side Java template engine for web and standalone environments, designed for processing and creating HTML, XML, and more.

    • Thymeleaf integrates seamlessly with Spring Framework, making it a popular choice for Spring MVC applications.

    • It allows for natural templating, meaning templates can be opened and edited in a browser without needing to be processed by the server.

    • Thymeleaf supports various ...

  • Answered by AI
  • Q2. What is swagger
  • Ans. 

    Swagger is an open-source framework for designing, building, and documenting RESTful APIs.

    • Swagger provides a user-friendly interface for API documentation.

    • It uses a standard format (OpenAPI Specification) to describe APIs.

    • Developers can generate client libraries and server stubs from Swagger definitions.

    • Example: A Swagger UI can display endpoints for a weather API, showing methods like GET /weather.

    • Swagger allows for i...

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in Jun 2024. There were 2 interview rounds.

Round 1 - Technical 

(3 Questions)

  • Q1. Workflow of writing an api from beginning till end either u can write all the code on notepad or just verbally explain
  • Ans. 

    Creating an API involves planning, designing, coding, testing, and deploying to ensure functionality and usability.

    • Define the purpose and requirements of the API.

    • Choose the architecture style (REST, GraphQL, etc.).

    • Design the endpoints and data models (e.g., /users, /products).

    • Implement authentication and authorization (e.g., OAuth, JWT).

    • Write the code using a programming language (e.g., Python, Node.js).

    • Test the API us...

  • Answered by AI
  • Q2. Questions related to springboot
  • Q3. Annotations were asked
Round 2 - Technical 

(2 Questions)

  • Q1. Multithreading questions,deployment related questions,debugging and junit testing,security related authenticaton questions were asked
  • Q2. How the project is managed from initiation till release
  • Ans. 

    Project management involves structured phases from initiation to release, ensuring quality and stakeholder satisfaction.

    • Initiation: Define project scope and objectives, e.g., creating a project charter.

    • Planning: Develop a detailed project plan, including timelines and resources, e.g., Gantt charts.

    • Execution: Implement the project plan, coordinating teams and resources, e.g., daily stand-up meetings.

    • Monitoring: Track pr...

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Infosys Senior Systems Engineer interview:
  • Spring Boot
  • Jenkins
  • Java
  • JUnit
  • Security

Skills evaluated in this interview

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

I applied via LinkedIn and was interviewed in Oct 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. CORE JAVA RELATED BASIC
  • Q2. SPRING BOOT RELATED
Round 2 - HR 

(2 Questions)

  • Q1. GENERAL HR QUESTION
  • Q2. SALARY DISCUSSION

Senior Systems Engineer Interview Questions & Answers

user image saisravan ramoju

posted on 17 Oct 2024

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

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

Round 1 - Technical 

(3 Questions)

  • Q1. What is Routing in angular
  • Ans. 

    Routing in Angular is the process of navigating between different components or views in a single-page application.

    • Routing allows users to move between different parts of an application without reloading the entire page

    • Routes are defined in the app-routing.module.ts file using the RouterModule.forRoot() method

    • Each route maps a URL path to a component, which is then displayed when the path is accessed

    • Route parameters ca...

  • Answered by AI
  • Q2. Angular life cycle
  • Q3. Find no of occurrence in string
  • Ans. 

    Count the number of occurrences of a specific substring in a given string.

    • Use the built-in function or loop through the string to count occurrences.

    • Consider case sensitivity when counting occurrences.

    • Example: 'hello hello world'.count('hello') = 2

  • Answered by AI

Skills evaluated in this interview

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

If you join as a fresher you gave to give aptitude test

Round 2 - Technical 

(1 Question)

  • Q1. What is method overloading and method overring
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. What are the Object-Oriented Programming (OOP) concepts that a fresher should be familiar with?

Interview Preparation Tips

Interview preparation tips for other job seekers - If you are experienced and want to come to Infosys then it's ok but if you are fresher and you want to join Infosys then you are doing big mistake
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Those where basics not very hard

Round 2 - Technical 

(2 Questions)

  • Q1. Oops concepts and core java including loops
  • Q2. Conditional statements and overloading and overriding
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Basic aptitude questions and analytical

Round 2 - Technical 

(1 Question)

  • Q1. Write program to find largest number from array
  • Ans. 

    Program to find largest number from array of strings

    • Convert array of strings to array of integers

    • Use a loop to iterate through the array and compare each element to find the largest number

    • Return the largest number found

  • Answered by AI
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Aptitude, Algorithm & puzzle

Round 2 - Technical 

(2 Questions)

  • Q1. What are Oops concepts
  • Ans. 

    Oops concepts refer to Object-Oriented Programming principles such as Inheritance, Encapsulation, Polymorphism, and Abstraction.

    • Inheritance: Allows a class to inherit properties and behavior from another class.

    • Encapsulation: Bundling data and methods that operate on the data into a single unit.

    • Polymorphism: Ability to present the same interface for different data types.

    • Abstraction: Hiding the complex implementation det...

  • Answered by AI
  • Q2. Explain SDLC life cycle
  • Ans. 

    SDLC life cycle is a process used by software development teams to design, develop, and test high-quality software.

    • 1. Planning: Define project scope, requirements, and timeline.

    • 2. Analysis: Gather and analyze user requirements.

    • 3. Design: Create a detailed design plan for the software.

    • 4. Implementation: Develop the software based on the design.

    • 5. Testing: Test the software for bugs and issues.

    • 6. Deployment: Release the ...

  • Answered by AI

Skills evaluated in this interview

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Are we not even safe in our own workplaces?
An Infosys employee was arrested for secretly recording women in the office washroom. Over 30 videos were found on his phone. This isn't just shocking, it's horrifying. Offices are meant to be safe, respectful spaces. 🙎 When will companies truly prioritize safety and surveillance in all corners, not just the visible ones?
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Infosys Interview FAQs

How many rounds are there in Infosys Senior Systems Engineer interview?
Infosys interview process usually has 2-3 rounds. The most common rounds in the Infosys interview process are Technical, Aptitude Test and One-on-one Round.
How to prepare for Infosys Senior Systems 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 Infosys. The most common topics and skills that interviewers at Infosys expect are SDLC, Software Engineering, Test Cases, Java and Application Development.
What are the top questions asked in Infosys Senior Systems Engineer interview?

Some of the top questions asked at the Infosys Senior Systems Engineer interview -

  1. 2. Explain COMP, COMP-2, COMP-3 and Display. What are the difference between Co...read more
  2. 1. Explain COND parameter in JCL. What parameters can be coded both in JOB leve...read more
  3. What is Data Dictionary, an explanation about all the elements of DD...read more
What are the most common questions asked in Infosys Senior Systems Engineer HR round?

The most common HR questions asked in Infosys Senior Systems Engineer interview are -

  1. What are your strengths and weakness...read more
  2. Why are you looking for a chan...read more
  3. What is your family backgrou...read more
How long is the Infosys Senior Systems Engineer interview process?

The duration of Infosys Senior Systems 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 204 interview experiences

Difficulty level

Easy 37%
Moderate 63%
Hard 1%

Duration

Less than 2 weeks 50%
2-4 weeks 32%
4-6 weeks 7%
6-8 weeks 4%
More than 8 weeks 8%
View more
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Infosys Senior Systems Engineer Salary
based on 53.8k salaries
₹2.5 L/yr - ₹6.3 L/yr
35% less than the average Senior Systems Engineer Salary in India
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Infosys Senior Systems Engineer Reviews and Ratings

based on 5.4k reviews

3.5/5

Rating in categories

3.6

Skill development

3.7

Work-life balance

2.4

Salary

4.1

Job security

3.7

Company culture

2.5

Promotions

3.2

Work satisfaction

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