A professional writer involved in creating, writing, maintaining and updating the technical documents is known as a Technical Writer. Documents such as white papers, design specifications, and user guides also fall under a Technical Writer. They are also known as technical communicator.
Although there is no standard career path for a technical writer, but they can go for project management. After some experience a writer may be promoted to a senior writer, handling a small group of writers and complex projects. After attaining a documentation manager post one has to handle multiple projects and teams.