I was a developer at a company for a few years and decided I wanted to get into product management. The first thing I did was tell my boss who was somewhat supportive. He let some of the product managers in our department know. We had several conversations but that never led to anything.<p>So I started being a product manager on my own skunk work projects at work -- writing product requirements and prototyping demos of new ideas that fit in well with the business.<p>After a while of doing this it wasn't hard to find someone who sponsored the transition from developer to product manager. You just have to demonstrate your ability to execute. Someone will take a chance on you.