Olsen, 57, was most recently the company's chief accounting officer as well as senior vice-president of finance for its Joy Mining Machinery business.
Olsen joined Joy in 1979 as its manager of external reporting and has held a number of senior finance positions.
He has a Bachelor of Science degree in accounting from Pennsylvania State University and a Master in Business Administration from the University of Pittsburgh.
“His combination of skills, experience and passion was outstanding … in addition, his in-depth knowledge of our business and industry will serve us well in the volatile and uncertain times that we are facing," Joy president Mike Sutherlin said.