Motivation is the most important part in any activity you are part of, you can have the knowledge or the training, but without motivation, you wont be able to take it to the maximum !.
Talking about my job, I can say that be part of the solution of really difficult scenarios where people´ services and products can be delivered on time because of the work we perform. Other times, is the fact that I share common goals with the people I work with, I like to discover and develop new talents in others and even in myself.
But what I think what I love the most is that you are free to create new solutions to existing problems, to generate any change you think is necessary and whenever you need support from others, you always get it, finally, to feel safe when giving your opinion and transform your ideas into actions.
Maybe you have heard motivation is about money, success, or even fame, but believe me, motivation appears when you love what you do, the rest is only a nice consequence.