In 2014, he was named the Maine Gatorade Player of the Year for scoring 19 goals and 12 assists as a senior.
[2] While in college, he played in the PDL with GPS Portland Phoenix[3] and the Seacoast United Phantoms.
Omsberg made his professional debut on March 24, 2018, starting in a 3–0 loss to the New York Red Bulls.
[8] In April 2019, Omsberg was loaned out to Minnesota's USL League One affiliate Forward Madison ahead of their inaugural season.
[10] On February 11, 2020, Omsberg was traded by Minnesota United to the Chicago Fire in exchange for Raheem Edwards.