Klaiber comes to Aquinas after spending the past four seasons as the head coach of Monmouth, an NCAA Division III school in Illinois. A men's lacrosse coach at NCAA Division II and III institutions, Klaiber also competed as a student-athlete at the NCAA Division I level.

In his first year as head coach, Klaiber helped Monmouth double its win total (from three wins to 6-9 in 2018) from the inaugural year. The Fighting Scots improved to 7-9 in 2019 and the team was off to a 4-2 start in 2020 before COVID shut down the remainder of the season. Monmouth went 6-3 in 2021 and advanced to the Midwest Lacrosse Conference championship game, the first in program history. Klaiber led the Fighting Scots to a 23-23 record over the last four years. He coached 14 all-conference selections, including the program's first Defensive Player of the Year and Academic All-American.

Klaiber becomes the third full-time head coach in AQ history and takes over a Saints program that went 5-4 last season, faced five top-10 opponents during the year, and advanced to the WHAC Tournament semifinals. In the last full, non-COVID affected season, Aquinas advanced to the 2019 NAIA National Invitational championship game.

Prior to his tenure at Monmouth, Klaiber served as a graduate assistant coach at Adams State, an NCAA Division II school in Colorado. He was in charge of the Adams State goalies; the team's starting goalie was the Rocky Mountain Athletic Conference rookie of the year in 2016 and a First Team All-RMAC selection in 2017. Klaiber also spent a season as an assistant coach and was in charge of the goalies at Carroll, a Division III school in Wisconsin.

As a player, he was a two-year starting goalie at Mount Saint Mary's, an NCAA Division I school in Maryland. The team won the 2011 Northeast Conference championship and were 2012 conference runner-up. Klaiber was also an All-Central New York selection at nationally-ranked Lafayette High School.