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NJ Technologies Backend Developer Interview Questions and Answers

Updated 7 Mar 2023

NJ Technologies Backend Developer Interview Experiences

1 interview found

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

I applied via LinkedIn and was interviewed in Feb 2023. 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 - Aptitude Test 

Basic Maths and reasoning
Along with core java and advanced java mcq questions

Round 3 - Technical 

(2 Questions)

  • Q1. Exception handling, Identifiers, spring annotations, Collections hierarchy
  • Q2. Basic Mysql question like ddl, dml operation

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare basic questions on java, get some ideas about basic dsa and sql

Interview questions from similar companies

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
-
Result
Not Selected
Round 1 - One-on-one 

(2 Questions)

  • Q1. Dsa based 2 question
  • Q2. 1 linked list 2 sliding window
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 - Coding Test 

LCA based Question and a string Based qu with some input output Questions

Round 3 - Technical 

(2 Questions)

  • Q1. Difference between c and java
  • Ans. 

    C is a low-level programming language while Java is a high-level programming language.

    • C is compiled while Java is interpreted

    • C has pointers while Java does not

    • Java has automatic garbage collection while C does not

    • Java is platform-independent while C is platform-dependent

    • Java has built-in support for multithreading while C does not

  • Answered by AI
  • Q2. Difference between abstract class and interface
  • Ans. 

    Abstract class can have implementation while interface only has method signatures.

    • Abstract class can have constructors while interface cannot.

    • A class can implement multiple interfaces but can only inherit from one abstract class.

    • Abstract class can have non-public members while interface only has public members.

    • Abstract class is used for creating a base class for other classes while interface is used for defining a cont...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Try to Communicate clearly. and try to tell most optimised aproach at first attempt.

Skills evaluated in this interview

I applied via Company Website and was interviewed in Mar 2020. There were 4 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. About previous projects and challenges in those
  • Q2. About how to create backends which can take high traffic
  • Q3. Security related. SQL injection, XSS etc.

Interview Preparation Tips

Interview preparation tips for other job seekers - THink about your older projects and how you worked on them. It is a very comfortable discussion. Does not feel like interview.
Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
Not Selected

I applied via Approached by Company and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - One-on-one 

(2 Questions)

  • Q1. What are your projects
  • Q2. Why you want to join hackerrank

Interview Preparation Tips

Interview preparation tips for other job seekers - You never know what went wrong
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
-
Result
Not Selected
Round 1 - One-on-one 

(2 Questions)

  • Q1. Dsa based 2 question
  • Q2. 1 linked list 2 sliding window
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

2 simple questions were asked and related time and space complexity was asked.
Use any language

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - Coding Test 

LCA based Question and a string Based qu with some input output Questions

Round 3 - Technical 

(2 Questions)

  • Q1. Difference between c and java
  • Ans. 

    C is a low-level programming language while Java is a high-level programming language.

    • C is compiled while Java is interpreted

    • C has pointers while Java does not

    • Java has automatic garbage collection while C does not

    • Java is platform-independent while C is platform-dependent

    • Java has built-in support for multithreading while C does not

  • Answered by AI
  • Q2. Difference between abstract class and interface
  • Ans. 

    Abstract class can have implementation while interface only has method signatures.

    • Abstract class can have constructors while interface cannot.

    • A class can implement multiple interfaces but can only inherit from one abstract class.

    • Abstract class can have non-public members while interface only has public members.

    • Abstract class is used for creating a base class for other classes while interface is used for defining a cont...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Try to Communicate clearly. and try to tell most optimised aproach at first attempt.

Skills evaluated in this interview

I applied via Company Website and was interviewed in Mar 2020. There were 4 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. About previous projects and challenges in those
  • Q2. About how to create backends which can take high traffic
  • Q3. Security related. SQL injection, XSS etc.

Interview Preparation Tips

Interview preparation tips for other job seekers - THink about your older projects and how you worked on them. It is a very comfortable discussion. Does not feel like interview.

NJ Technologies Interview FAQs

How many rounds are there in NJ Technologies Backend Developer interview?
NJ Technologies interview process usually has 3 rounds. The most common rounds in the NJ Technologies interview process are Resume Shortlist, Aptitude Test and Technical.
How to prepare for NJ Technologies Backend Developer 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 NJ Technologies. The most common topics and skills that interviewers at NJ Technologies expect are Node.Js, API, Development, Front End and Hibernate.
What are the top questions asked in NJ Technologies Backend Developer interview?

Some of the top questions asked at the NJ Technologies Backend Developer interview -

  1. Exception handling, Identifiers, spring annotations, Collections hierar...read more
  2. Basic Mysql question like ddl, dml operat...read more

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NJ Technologies Backend Developer Interview Process

based on 1 interview

Interview experience

4
  
Good
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