How to express the willingness to learn things necessary on the job?

I am applying for a job in finance where I think I am just a beginner. So there are a lot of things I will learn on the job. I want to express that I am ready for it and to make clear that I am an career entrant. I thought about something like:

"I am willing to enhance my knowledge in finance."

I am not happy with this and I do not know how to express what I want in a nice sentence. So I want to state that I am ready to expand my knowledge where it is necessary and that I am eager to learn new technologies (which are necessray for this) job on the job.