Cognizant

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Company name: Cognizant, Pune

Position: Sr. Manager / Java Full Stack Dev (Java, Spring Boot, Angular, Cloud)

70% Development (IC)

30% Lead

First technical round: Online Video conference - Two interviewer panel members

Java-Spring Boot (Backend):
Find Duplicated element from unsorted list of array

Use case of stream-API

Difference between Iterator and stream-API

How to achieve Dependency injection in parent and child interface/class in spring boot

Scenario on Circuit breaker and its configuration step by step

How to implement logging mechanisms in spring boot and make sure that proper debug level will be picked up in CI/CD process of build

Efficient way to implement singleton design pattern and how to create only two instance not more than that using enum?

Multithreading scenario to add two number

Executer service framework to handle third party API and make sure that transaction is pass or fail based on response

Step by step implementation of JPA entity class in spring boot. Explain annotation like @Persist, @ManyToMany, @Entity etc.


UI Front end (Angular):
JIT and AOT with respect to build of production, what configuration is require for that?

What is HTTP interceptor and its use case

How to create singleton class in annular framework

Have you used RXjs library

Difference between promises and observable


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