Metlife is hiring Freshers for the Jr. Software Platform Engineer. The details of the job, requirements and other information given below:
METLIFE IS HIRING : JR. SOFTWARE PLATFORM ENGINEER
- Qualification : Bachelor’s degree in computer science, Engineering, Finance/Accounts, or related discipline
- 0 to 3 years of hands-on experience in Core Java, Advanced Java, Microservices
- Java 8, Spring Framework, Spring Boot, Spring Cloud
- Micro Services and Message Queues
- MongoDB or other NoSQL databases
- Redis, Docker, Bamboo or Jenkins
- CI/CD, Gulp or Webpack, Maven or Gradle
- Javascript (ES6), ReactJS or React Native or AngularJS, Node.JS
- Location: India
Don’t miss out, CLICK HERE (to apply before the link expires)
Interview Preparation for Java Developer – MetLife (0–3 years)
Section 1: Core Java Questions
1. What is the difference between == and .equals() in Java?
Answer:
-
==is used to compare the references (memory addresses) of two objects. -
.equals()is used to compare the content (data inside the objects).
For example:
String a = new String("MetLife");
String b = new String("MetLife");System.out.println(a.equals(b)); // true – because contents are same
2. What are the main features of Java 8?
Answer:
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Lambda Expressions – for writing anonymous functions.
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Stream API – for processing collections in a functional style.
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Default Methods – in interfaces.
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Functional Interfaces – like Predicate, Function, etc.
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Optional Class – to avoid null pointer exceptions.
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Date and Time API – improved and thread-safe.
3. What is a constructor in Java? How is it different from a method?
Answer:
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A constructor is a special method used to initialize objects.
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It has no return type, and its name is same as the class.
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Unlike methods, constructors are called only once when an object is created.
Section 2: Spring Framework & Spring Boot
4. What is Spring Boot and why is it used?
Answer:
Spring Boot is a framework built on top of Spring that helps you create stand-alone, production-ready applications quickly.
It removes the need for complex configuration by using auto-configuration and starter templates.
5. What are the differences between Spring and Spring Boot?
Answer:
| Spring Framework | Spring Boot |
|---|---|
| Requires a lot of setup | Minimal configuration required |
| No embedded server | Comes with embedded servers |
| Manual dependency mgmt | Starter dependencies provided |
| Slower to start | Faster and production-ready |
6. What is Dependency Injection in Spring?
Answer:
Dependency Injection (DI) is a design pattern where the dependencies (objects) of a class are injected from outside, rather than the class creating them.
Example:
public class Engine {}public class Car {
Engine engine;
}
Section 3: Microservices & DevOps Tools
7. What is a microservice?
Answer:
Microservices are small, independent services that do one thing well and communicate with other services using APIs (usually REST).
Each service is developed, deployed, and scaled independently.
8. What are the benefits of using microservices?
Answer:
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Easy to maintain and test
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Can be deployed independently
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Scalable and flexible
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Better fault isolation
9. What is the use of Docker in Java development?
Answer:
Docker allows you to package your Java application with all its dependencies into a container, so it can run the same way in any environment (local, testing, production).
10. What are CI/CD pipelines?
Answer:
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CI (Continuous Integration): Automatically builds and tests code every time you push changes.
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CD (Continuous Delivery/Deployment): Automatically deploys your code to testing or production after passing CI.
Tools used: Jenkins, Bamboo, GitLab CI, etc.
Section 4: Frontend and UI Technologies
11. What is React and why is it used?
Answer:
React is a JavaScript library for building user interfaces, especially single-page applications.
It allows you to build reusable components and manage state effectively.
12. What is the difference between React and React Native?
Answer:
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React: Used for building web applications.
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React Native: Used for building mobile apps (iOS and Android).
Section 5: Databases and Messaging
13. What is MongoDB and how is it different from SQL databases?
Answer:
MongoDB is a NoSQL database that stores data in JSON-like documents.
Unlike SQL databases, it doesn’t use tables and rows. It’s schema-less, scalable, and fast.
14. What are message queues and why are they used?
Answer:
Message Queues (like RabbitMQ, Kafka) allow communication between services asynchronously.
They help in handling high loads and decoupling services in microservice architectures.
Section 6: General and Behavioral Questions
15. Describe a time when you solved a difficult programming problem.
Answer Tip:
Follow the STAR method:
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Situation – What was the context?
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Task – What was your responsibility?
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Action – What did you do?
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Result – What was the outcome?
Example:
“During my final project, our app was crashing due to memory issues. I profiled the application using VisualVM, found the memory leak in image handling, and fixed it by compressing and caching images. This improved performance by 30%.”
16. Why do you want to work at MetLife?
Answer:
“MetLife is a globally recognized company that values innovation and technology. I’m impressed by your focus on scalable, cloud-based solutions and the opportunity to work with cutting-edge tools like Spring Boot, Microservices, and React. I also appreciate your culture of learning and collaboration.”
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