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TCS Assistant System Engineer Interview Questions, Process, and Tips

Updated 26 Feb 2025

Top TCS Assistant System Engineer Interview Questions and Answers

  • Q1. Constellation Identification Problem Given a matrix named UNIVERSE with 3 rows and 'N' columns, filled with characters {#, *, .}, where: '*' represents stars. '.' repres ...read more
  • Q2. Given a string S(input consisting) of ‘*’ and ‘#’. The length of the string is variable. The task is to find the minimum number of ‘*’ or ‘#’ to make it a ...read more
  • Q3. Space Survival Game Challenge Ninja is in space with unlimited fuel in his super spaceship. He starts with a health level H and his spaceship has an armour A . Ninja can ...read more
View all 286 questions

TCS Assistant System Engineer Interview Experiences

380 interviews found

Interview experience
5
Excellent
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 tips
Round 2 - Aptitude Test 

English and aptitude

Round 3 - Coding Test 

Opps concept and loops

Round 4 - Technical 

(1 Question)

  • Q1. Technical skills
Round 5 - HR 

(1 Question)

  • Q1. Regarding personal responsibility’s
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Dec 2022. There were 3 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 - Technical 

(7 Questions)

  • Q1. What are angular life cycle?
  • Ans. 

    Angular lifecycle hooks are methods that get called at specific stages of a component's life.

    • There are eight lifecycle hooks in Angular

    • ngOnInit() is called after the component is initialized

    • ngOnChanges() is called when the component's input properties change

    • ngDoCheck() is called during every change detection cycle

    • ngAfterViewInit() is called after the component's view has been initialized

    • ngOnDestroy() is called just bef

  • Answered by AI
  • Q2. Explain different directives
  • Ans. 

    Directives are instructions given to the compiler to perform specific tasks during compilation.

    • There are different types of directives such as include, define, pragma, and ifdef

    • Include directive is used to include header files in the program

    • Define directive is used to define constants or macros

    • Pragma directive is used to provide additional information to the compiler

    • Ifdef directive is used to check if a particular macr

  • Answered by AI
  • Q3. Difference between template driven and reactive form
  • Ans. 

    Template driven forms are based on directives while reactive forms are based on reactive programming.

    • Template driven forms are easier to use and require less code.

    • Reactive forms are more flexible and allow for more complex validation.

    • Template driven forms are suitable for simple forms while reactive forms are better for complex forms.

    • Template driven forms use two-way data binding while reactive forms use observable str...

  • Answered by AI
  • Q4. How does angular application starts
  • Ans. 

    Angular application starts by bootstrapping the AppModule.

    • Angular application is a single page application that runs in the browser.

    • The AppModule is the root module of the application.

    • The AppModule is bootstrapped by calling the bootstrapModule method in main.ts file.

    • The bootstrapModule method creates an instance of the AppModule and starts the application.

  • Answered by AI
  • Q5. Core constructs of angular
  • Ans. 

    Angular has core constructs like components, modules, services, directives, pipes, and templates.

    • Components are the building blocks of Angular applications.

    • Modules are used to organize the application into cohesive blocks of functionality.

    • Services are used to share data or functionality across components.

    • Directives are used to add behavior to an existing DOM element or create a new one.

    • Pipes are used to transform data ...

  • Answered by AI
  • Q6. Auth guards in angular
  • Ans. 

    Auth guards in Angular are used to protect routes from unauthorized access.

    • Auth guards are used to check if a user is authenticated before allowing access to a route.

    • They can also be used to check if a user has certain permissions before allowing access.

    • Angular provides built-in auth guards like CanActivate, CanActivateChild, CanLoad, and CanDeactivate.

    • Custom auth guards can also be created by implementing the CanActiv...

  • Answered by AI
  • Q7. Rxjs operators in angular
  • Ans. 

    RxJS operators are used in Angular to handle asynchronous data streams.

    • Operators are functions that manipulate the data streams

    • They can be used for filtering, mapping, reducing, and more

    • Common operators include map, filter, switchMap, and mergeMap

  • Answered by AI
Round 3 - HR 

(2 Questions)

  • Q1. Tell me about yourself
  • Q2. Was there any delay while completing your previous tasks? how did you complete that task?

Interview Preparation Tips

Interview preparation tips for other job seekers - be confident and be honest. if you don't know just say don't know

Skills evaluated in this interview

Assistant System Engineer Interview Questions Asked at Other Companies

asked in TCS
Q1. Constellation Identification Problem Given a matrix named UNIVERS ... read more
asked in TCS
Q2. Given a string S(input consisting) of ‘*’ and ‘#’. The le ... read more
asked in TCS
Q3. Space Survival Game Challenge Ninja is in space with unlimited fu ... read more
asked in TCS
Q4. Prime Time Again Problem Statement You are given two integers DAY ... read more
asked in TCS
Q5. Valid Pairs Problem Statement Given an array of integers ARR with ... read more
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Easy to Hard level questions

Round 2 - Coding Test 

One easy second one is hard

Round 3 - Technical 

(1 Question)

  • Q1. Tell me about yourself Python related Questions Project based question
Round 4 - HR 

(1 Question)

  • Q1. 10,12,Gdraduation marks
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via TCS io and was interviewed in Jul 2023. There were 2 interview rounds.

Round 1 - Coding Test 

1. tell me about your self

2. implement bubble short

3. opps basic concepts

4. some DBMS basic questions

Round 2 - HR 

(2 Questions)

  • Q1. 1. tell me about your self
  • Q2. 2. why want to join tcs

Interview Preparation Tips

Topics to prepare for TCS Assistant System Engineer interview:
  • sorting
  • DBMS
  • Object Oriented Programming
Interview preparation tips for other job seekers - Prepare basics of computer science and be confident at interview.

TCS interview questions for designations

 System Engineer

 (1.1k)

 Assistant System Analyst

 (6)

 System Assistant

 (1)

 System Engineer Hardware

 (68)

 System Software Engineer

 (3)

 Junior System Engineer

 (2)

 System Engineer Analyst

 (2)

 Linux System Engineer

 (1)

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

I applied via LinkedIn and was interviewed in Jan 2023. There were 2 interview rounds.

Round 1 - Aptitude Test 

Various aptitude questions Statistics, time and work, etc.

Round 2 - Technical 

(3 Questions)

  • Q1. Technical interview based on the basic concepts of coding
  • Q2. What is a foreign key in SQL?
  • Ans. 

    A foreign key is a column or set of columns in a table that refers to the primary key of another table.

    • It establishes a link between two tables.

    • It ensures referential integrity.

    • It can be used to join tables.

    • Example: CustomerID in Orders table refers to CustomerID in Customers table.

  • Answered by AI
  • Q3. Can you explain how a do-while loop work?
  • Ans. 

    A do-while loop executes the code block at least once and then repeatedly executes it while the specified condition is true.

    • The code block is executed once before the condition is checked

    • If the condition is true, the code block is executed again and again until the condition becomes false

    • Syntax: do { code block } while (condition);

    • Example: do { x++; } while (x < 5);

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - just go over the basic and whatever you have written in your resume

Skills evaluated in this interview

Get interview-ready with Top TCS Interview Questions

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

I applied via Naukri.com and was interviewed in Jun 2023. There were 4 interview rounds.

Round 1 - Aptitude Test 

General ability logical reasoning

Round 2 - Coding Test 

2 coding questions for 1 hr and few mcqs

Round 3 - Technical 

(1 Question)

  • Q1. Few basic programs no java
Round 4 - HR 

(1 Question)

  • Q1. Few basic questions on personal abilities
Interview experience
4
Good
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 tips
Round 2 - Aptitude Test 

They asked logical reasoning , Arithmetic , English , Some mental ability .

Round 3 - Coding Test 

Execute 2 codes . 1 will be moderate another little tough I felt . Execute one of the code perfectly as per requirement is fine .

Round 4 - One-on-one 

(2 Questions)

  • Q1. Technical Questions related to Java , Method overloading, functions, Data types etc..
  • Q2. Some managerial questions like why TCS etc .

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident. Learn to talk English fluently might help .
Interview experience
4
Good
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 tips
Round 2 - Aptitude Test 

TCS NQT was there for aptitude exam, it was offline at centre

Round 3 - Coding Test 

Same exam had some coding questions

Round 4 - Technical 

(2 Questions)

  • Q1. A face to face interview was scheduled to check my knowledge
  • Q2. What is pointers and what is tree and a program to print pattern
  • Ans. 

    Pointers are variables that store memory addresses. Trees are data structures consisting of nodes connected by edges. A program to print pattern can vary depending on the desired pattern.

    • Pointers are used to manipulate memory and create dynamic data structures.

    • They can be used to pass values by reference instead of by value.

    • Example: int *ptr; ptr = # *ptr = 10; //num now equals 10

    • Trees are used to represent hierarc...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Ho ahead and crack the interview by preparing quants and apti and little bit coding
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Prepare on logical related questions.

Round 2 - One-on-one 

(2 Questions)

  • Q1. Basics of oops and process knowledge.
  • Q2. Current process used in business.
  • Ans. 

    The current process used in business involves analyzing data, identifying areas for improvement, implementing changes, and monitoring results.

    • Data analysis to identify trends and patterns

    • Continuous improvement through feedback and monitoring

    • Implementation of changes based on analysis

    • Regular monitoring of results to track progress

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare more on current process related courses and methodology.
Interview experience
4
Good
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I was interviewed before Nov 2023.

Round 1 - Coding Test 

Gave Coding test in TCS NQT

Round 2 - Technical 

(4 Questions)

  • Q1. Asked about my college projects, and since I used flutter in my college projects and internships, Interviewer googled some flutter questions and asked, which I answered easily.
  • Q2. Explain about your recent project
  • Ans. 

    Developed a web-based inventory management system for a retail company

    • Used PHP and MySQL for backend development

    • Implemented responsive design using HTML, CSS, and JavaScript

    • Integrated barcode scanning functionality for efficient inventory tracking

  • Answered by AI
  • Q3. How is flutter different from other mobile technologies
  • Ans. 

    Flutter is a cross-platform mobile development framework created by Google, allowing developers to build native-like apps for both iOS and Android using a single codebase.

    • Flutter uses a single codebase for both iOS and Android, reducing development time and effort.

    • Flutter has a hot reload feature, allowing developers to see changes instantly without restarting the app.

    • Flutter provides a rich set of customizable widgets...

  • Answered by AI
  • Q4. What are statefull and stateless widgets in flutter
  • Ans. 

    Stateful widgets maintain state that might change during the lifetime of the widget, while stateless widgets do not.

    • Stateful widgets have a State object that can hold dynamic information and can be updated over time.

    • Stateless widgets are immutable and their properties cannot change once they are initialized.

    • Examples of stateful widgets include TextField, Checkbox, and Slider.

    • Examples of stateless widgets include Text,

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep your basics clear, Make you know about your college projects, your contributions in them and also internship expereinces.

Skills evaluated in this interview

TCS Interview FAQs

How many rounds are there in TCS Assistant System Engineer interview?
TCS interview process usually has 2-3 rounds. The most common rounds in the TCS interview process are Technical, Aptitude Test and HR.
What are the top questions asked in TCS Assistant System Engineer interview?

Some of the top questions asked at the TCS Assistant System Engineer interview -

  1. What are the functions used in a particular co...read more
  2. What is linklist ? Write a code to insert a node at the beginning of lis...read more
  3. What are local variable and global variables? and their default values and prog...read more
How long is the TCS Assistant System Engineer interview process?

The duration of TCS Assistant System Engineer interview process can vary, but typically it takes about less than 2 weeks to complete.

Tell us how to improve this page.

TCS Assistant System Engineer Interview Process

based on 259 interviews

6 Interview rounds

  • Aptitude Test Round
  • HR Round - 1
  • Technical Round
  • HR Round - 2
  • HR Round - 3
  • Personal Interview1 Round
View more

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TCS Assistant System Engineer Salary
based on 29.8k salaries
₹2.2 L/yr - ₹5.8 L/yr
At par with the average Assistant System Engineer Salary in India
View more details

TCS Assistant System Engineer Reviews and Ratings

based on 3.6k reviews

3.7/5

Rating in categories

3.5

Skill development

3.9

Work-life balance

2.7

Salary

4.6

Job security

3.7

Company culture

2.7

Promotions

3.3

Work satisfaction

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