>I work on the kernel for a living

I'm interested in kernel development and I like the idea of working on it for a living. Can you give more details about your job? What does it consist in? Is it mostly code-review? Or are you responsible for maintaining a part of the kernel. Who is the entity that pays you, and what are the criteria they'd use to pay a new contributor to work on kernel full-time? Finally, can you point me to beginner-friendly things to work on to get started? how do I know which part of the kernel I should study and contribute to?