In particular this means that I'm a core developer of OpenTripPlanner, a public transport routing and information engine used all over the world.
But besides working on the core software itself, I can also set up entire travel planners and am an expert in the following related fields:
Sometimes I give talks at user groups or conferences.
I'm available for contract hire and I would love to talk to you how I can help you and bring your project forward. In short, if you need someone who knows OpenTripPlanner inside out, get in touch!