Prior to joining Deer Valley, he was involved in the development of the Park City Ski Area (now known as Park City Mountain Resort). Eriksen has also spent four years as director of skiing and ski school director at Snowmass, Colorado, and four years as ski school director of Sugarbush, Vermont. He also served as ski school director and owned his own sport shop in Aspen Highlands, Colorado. From 1956–1958, he was ski school director at Heavenly Valley, California, having previously served in the same position at Boyne Mountain, Michigan, from 1954–1956.

Today, Eriksen serves as both host of Stein Eriksen Lodge and director of skiing for Deer Valley Resort. Guests can often spot Eriksen skiing on the slopes. He is often participating in celebrity functions and special events.

The patriarch of elegant skiing, Eriksen has successfully combined his passion for skiing with a desire to develop an internationally renowned luxury hotel, which also bears his name. While developing Stein Eriksen Lodge, Eriksen along with business partner Edgar Stern, traveled extensively to mountain hotels throughout the world, borrowing aspects from the finest and adding his own touches. Stein Eriksen Lodge is now recognized worldwide as the five-diamond, five star luxury hotel nestled mid-mountain at Deer Valley Resort.

In recognition of his pioneering spirit and contribution to the early development of the ski industry, Stein Eriksen received the Pioneer Award from the Intermountain Ski Areas Association (ISAA) in 1998.

His Majesty the King of Norway pronounced him Knight First Class in 1997. This honor, given to a select number of foreign and Norwegian nationals who reside outside of Norway, recognizes outstanding service in the interests of Norway. His contribution to the world of sport and his commitment to the people of his homeland earned him the Royal Order of Merit.

Eriksen currently calls both Utah and Montana home. He spends the off-season archery hunting, playing tennis and fly-fishing and other sports.