[5] In 2017, Suwinski was promoted to the Single-A Fort Wayne Tin Caps, slashing .227/.319/.349 with 9 home runs and 41 RBI in 125 games with the team.

For the 2019 season, Suwinski was promoted to play for the High-A Lake Elsinore Storm, hitting .208/.303/.351 with a career-high 12 home runs and 51 RBI.

On July 26, 2021, the Padres traded Suwinski, Tucupita Marcano, and Michell Miliano to the Pittsburgh Pirates in exchange for Adam Frazier and $1.4 million in cash.

[9][10] Suwinski began his 2022 season still with the Double-A Altoona Curve on April 8, 2022, posting an impressive slash of .353/.421/.686 with 3 home runs and 13 RBIs in 13 games.

On April 26, 2022, Suwinski was promoted to the major leagues for the first time after Bryan Reynolds and Cole Tucker were placed on the COVID-19 injured list.

[11][12] He made his MLB debut that day as the starting right fielder against the Milwaukee Brewers, notching a two-out single for his first big league hit.

[19] Performing below average with a slash of .198/.288/.428 with 14 home runs and 25 RBIs in 72 games, Suwinski entered a slump of 0 hits over 29 at-bats and was demoted to the Triple-A Indianapolis Indians on July 15, 2022.

[22] On April 29, Suwinski hit his first career grand slam off of Hobie Harris of the Washington Nationals, leading the Pirates to a 16–1 win in game two of the doubleheader.