Software engineers write programs to design and develop computer software. Interviews are highly technical, so come ready to work through coding problems and math brainteasers. The specific questions you are asked will depend on what type of programming position you are looking for. Try researching a specific software discipline such as web development, application development, or system development.
Have you ever written any libraries or packages for your codes?
Not quite but can created classes and use those classes with inheritance to infinitely connect functions and variables.