Julmis played for the Knights of CR Walker Senior High School in Nassau while attending the school. In 2018, the team advanced to the finals of the Government Secondary Schools Sports Association (GSSSA) championship with a victory over the Mystic Marlins in the semi-finals. Julmis scored a goal in the 3–1 victory.[3] The Knights went on to win the championship that season and the two following seasons for three consecutive championships through 2020. Julmis served as the team's captain[4] and was its #9.[5] In the 2019 championship match, Julmis scored the game-tying goal in the 90th minute to send the game to extra-time.[6]
By October 2023, Julmis had returned to the Bahamas and joined the UB Mingoes. He scored two goals in a 7–0 pre-season victory over the Fort Lauderdale Eagles, the club largest-ever victory over an international opponent.[11]
