I prototype interactive and responsive interface solutions in html / css / js. I also use physical paper, Sketch, Photoshop, and Illustrator for static prototypes. I test these design solutions with users and stakeholders to find out what works, and what needs to change. I iterate this process until it's time to finalise the design interaction.
In this stage of a project, I work as a translator who speaks the different languages of developers, engineers, business stakeholders and customers to ensure that everyone understands each other. It is very important to be able to work productively within a team environment, to make certain that we all understand why we are doing what we do. Without this trust and understanding, my best ideas amount to nothing.