Karnišovas worked for the
National Basketball Association's basketball operations office from 2003 to 2008, and afterwards became an international
scout for the
Houston Rockets for five years, while also directing the
Adidas Eurocamp—a preparation tournament for European players picked in the
NBA draft—in 2011 and 2012. On July 16, 2013, he became the assistant
general manager of the
Denver Nuggets. Karnišovas was considered one of the top candidates to be the new general manager for the
Brooklyn Nets in 2016. In 2017, Karnišovas emerged as one of the candidates for the general manager position for the
Milwaukee Bucks. On June 6, 2017, he remained as one of their three last original candidates, along with Wes Wilcox and
Justin Zanik. On June 13, 2017, it was announced that only Karnišovas and the Bucks' interim general manager Zanik remained as top candidates for the position. Two days later, on June 15, 2017, the Nuggets made Karnišovas their new general manager, with
Tim Connelly moving up to become the team's president of basketball operations. The Bucks would eventually promote their director of basketball operations,
Jon Horst, for their vacant general manager position instead. His first notable signing as a general manager was a multi-year contract with
Paul Millsap on July 13, 2017. On February 15, 2019, Karnišovas signed a multi-year contract extension with the Nuggets. On April 13, 2020, Karnišovas was named executive vice president of basketball operations by the
Chicago Bulls. In May 2022, Karnišovas was voted second/third best executive of the NBA. On April 6, 2026, he was fired along with Bulls general manager
Marc Eversley. ==Personal life==