[8] He made his professional debut for the first team in the Bundesliga on April 6, 2019, coming on as a substitute in the 80th minute for Marvin Bakalorz in the 1–3 away loss against VfL Wolfsburg.
[20] Soto made his debut for the United States under-19 team in May 2018, scoring five goals in four matches at the 2018 Slovakia Cup, where he won the Golden Boot award as top scorer.
In September 2020, Soto was called up by Chile for their 2022 FIFA World Cup qualification matches against Uruguay and Colombia, but he rejected the call-up.
[28][29][30] Soto was subsequently called up to the senior United States squad in November 2020 by manager Gregg Berhalter for friendly matches against Wales and Panama.
[31] Soto made his senior debut for the United States, coming on as a 77th-minute substitute and scoring two goals in a 6–2 friendly win against Panama on November 16, 2020.