On March 26, 2018, having completed his collegiate career with the Fighting Sioux, Poganski signed a two-year, entry-level contract with the St. Louis Blues.

He made his NHL debut for the Blues on December 10, 2019 versus the Buffalo Sabres playing on the fourth line with Mackenzie MacEachern and Jacob de la Rose.

[6] As an unrestricted free agent from the Blues, Poganski was signed to a one-year, two-way contract with the Winnipeg Jets on July 31, 2021.

[6] Initially assigned to Winnipeg's AHL affiliate, the Manitoba Moose, Poganski was recalled after several players were put on the COVID-19 protocol list.

[9] Poganski was placed on waivers on October 2, 2022 and after going unclaimed, was assigned to Seattle's AHL affiliate, the Coachella Valley Firebirds, during their inaugural season.