Software Engineer Team Leader Interview Questions and Answers

I have utilized design patterns such as Singleton, Factory, and Observer in my projects.

• Singleton pattern for ensuring a class has only one instance and providing a global point of access.

• Factory pattern for creating objects without specifying the exact class of object that will be created.

• Observer pattern for defining a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.

Testing Lift scenarios involves simulating various scenarios to ensure proper functionality. Defect life cycle involves identifying, reporting, fixing, and verifying defects. Writing test cases after client shares requirements involves understanding the requirements and creating test cases to validate them.

• For testing Lift scenarios, simulate scenarios like multiple users pressing different buttons, emergency stop, power failure, etc.

• Defect life cycle includes defect identifi...read more

The project architecture follows a microservices design pattern with a front-end client communicating with multiple back-end services.

• Microservices architecture

• Front-end client communicating with back-end services

• Use of RESTful APIs for communication

• Containerization with Docker for deployment

Sealed classes are classes that cannot be inherited or extended by other classes.

• Sealed classes are declared using the 'sealed' keyword.

• They are often used to restrict inheritance and ensure that a class has a limited number of subclasses.

• Sealed classes can have subclasses, but those subclasses must be declared in the same file as the sealed class.

• An example of a sealed class in C# is 'sealed class MySealedClass {}'.

Oops concepts refer to Object-Oriented Programming principles like Inheritance, Polymorphism, Encapsulation, and Abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Polymorphism: Ability of objects to take on multiple forms.

• Encapsulation: Bundling of data with the methods that operate on that data.

• Abstraction: Hiding the complex implementation details and showing only the necessary features.