Lewis was loaned out to Northern Premier League side Farsley Celtic where he played in one match before returning to Bradford City. He then left Bradford City on October 12 and returned to the United States, citing homesickness. College In August 2016, it was announced that Lewis will play college soccer with the Akron Zips at the University of Akron. He made his collegiate debut on August 26, coming on as a substitute in a 1–0 victory over the Georgetown Hoyas. Two days later, on August 28, Lewis made his first starting appearance in another 1–0 victory against the Seattle Redhawks. He scored his first goal for the Zips on October 26, the first goal in a 2–0 victory over the Ohio State Buckeyes. On November 13, Lewis started in Akron's 2–1 victory against the Buffalo Bulls which qualified the Zips for the 2016 postseason. Lewis started in both the first and second round for the Zips against the Villanova Wildcats and Indiana Hoosiers. The Zips defeated Villanova 2–0 before succumbing to a 1–0 away defeat against Indiana, knocking them out of the tournament. On November 11, 2021, Lewis was named as the Mid-American Conference Freshman of the Year. Club career New York City FC On January 7, 2017, it was announced that Lewis had signed a Generation Adidas contract with Major League Soccer and was available to be selected in the 2017 MLS SuperDraft. On January 13, Lewis was selected with the third overall pick by New York City FC, after Abu Danladi and Miles Robinson. He made his debut for the club on March 18, 2017, against the Montreal Impact, coming on as a substitute in a 1–1 draw at Yankee Stadium. Lewis was named into the starting line-up for the first time on July 22 in a 2–1 home victory against the Chicago Fire. Lewis scored his first professional goal on August 12, the opening goal in a 2–0 away victory against the LA Galaxy. He then scored the winning goal for New York City FC in their next match against the New England Revolution, a late stoppage time winner to give the club a 2–1 victory. Lewis finished his first professional season with 13 appearances, scoring just the two goals. In June 2018, after the departure of head coach Patrick Vieira, Lewis was hopeful that he could see more time on the pitch under Domènec Torrent.