This question is an opportunity for you to showcase your talent and skill. You can convince the interviewer by bringing their attention on the talent you got and tell them how perfect you are for that job. Also, you can mention some innovative ideas or concept that can help increase the organization profitability and credibility.
You can answer this question by saying that my past experience, my education and my personality actually fits to the job. I am a hard-working guy and a quick learner. Also, I like the concept or idea that the company is working on and that is what exactly I was looking for.