He worked as a teaching assistant, then as an assistant professor at the Institute of Computer Graphics at Vienna University of Technology from 1994 until 2000. Afterwards, Helwig Hauser joined the newly founded VRVis Research Center, also in Vienna, Austria, as a key researcher in visualization. In 2003, he became the scientific director of VRVis.
In 2004, Helwig Hauser was entitled a ''Privatdozent'' at the Vienna University of Technology after his successful Habilitation (see below for a link to the thesis). Also in 2004, he won the IEEE Visualization 2004 Contest (together with H. Doleisch and Ph. Muigg), based on an interactive visual analysis of hurricane Isabel with SimVis. In 2006, he was awarded with the prestigous Heinz Zemanek Award for this work.
Since 2007, Helwig Hauser is professor at the University of Bergen, Norway, where he is leading the research group on visualization. During the first four years, the group grew to a size of 15 researchers, working on projects in medical visualization, the visualization of geological data and models, flow visualization, the visualization of biological data, marine data visualization, and others. Since then, the group is continously contributing to the field (see, for example, the publications of the Bergen VisGroup).