What Does a Technical Writer do?

What is a Technical Writer? The vague answer would be: “somebody who writes boring texts”. Vague but not at all inaccurate. Unfortunately. You know the documentation that comes with your new appliance? Or the one explaining the safety rules on a train? Or, yet, the documents explaining how to use a software API? All of them have been written by a technical writer. Useful and important documentation but, easy to admit, not the most exciting content out there. Nothing that takes your breath away or is a page-turner.