NatWest Group Senior Software Engineer Interview Questions, Process, and Tips

A straightforward introduction to core Java along with the Spring framework.

Q1. What are the basic features of Java 8?
Ans. 
Java 8 introduced several new features including lambda expressions, functional interfaces, streams, and default methods.
• Lambda expressions allow you to write code in a more concise and readable way.

• Functional interfaces provide a way to define interfaces with a single abstract method.

• Streams allow for processing sequences of elements in a functional style.

• Default methods allow interfaces to have method implementations...read more
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Q1. What are some critical people capability questions based on specific scenarios?
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Q1. Spring Boot Related Questions
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Q2. Authentication handling in microservices
Ans. 
Authentication handling in microservices involves securing communication between services and managing user access.
• Implement token-based authentication for secure communication between microservices

• Use OAuth or JWT for authentication and authorization

• Centralize authentication logic in a separate service to avoid duplication

• Implement role-based access control to manage user permissions
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Q3. Microservice design patterns
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Q4. Java 8 map function
Ans. 
The map function in Java 8 is used to transform each element of a stream using a given function.
• Map function is a method in the Stream interface that applies a function to each element in the stream and returns a new stream with the transformed elements.

• It is commonly used for converting or manipulating data in a stream without modifying the original data source.

• Example: List<Integer> numbers = Arrays.asList(1, 2...read more
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Q1. Explain the software architecture of the project I am working on. Why certain design decisions are made.
Ans. 
The software architecture of the project involves a microservices-based approach with a combination of RESTful APIs and message queues for communication.
• The project follows a microservices architecture to enable scalability and flexibility.

• RESTful APIs are used for communication between different services.

• Message queues like Kafka or RabbitMQ are utilized for asynchronous communication and decoupling of services.

• Certai...read more
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Q2. C++ programming related questions
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Q3. Design pattern related questions
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Q1. Project role related questions,
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Q1. Questions on Java , Multi threading , Spring concepts
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