Karen joined Valmont Industries, Inc. as the HR (human resources) Manager for the Coatings, Tubing and Wind Energy Divisions in 2004, and she was later promoted to Coatings HR Director. In her tenure with Coatings, the division grew from 12 U.S. sites to 21 North America, 8 Australia and 4 Asia Pacific sites.

In 2017, Karen was named as the Vice President and HR Business Partner for Valmont Utility. Her current duties include overseeing the Commercial and Concrete groups, as well as handling international HR due diligence and integration activities.