Yomba, 20,  joined the Atlético Madrid youth program in 2014. In the same year, he made his international debut for Atlético in the EUFA (Union of European Football) Youth League against Olympiacos. Yomba and his former Spanish club would later advance to the quarterfinals of the tournament. Prior to his stints with Atlético, Yomba played for the United States U-17, U-18, and U-20 teams.  Yomba was scouted while traveling with the U-18 Men’s National team to the Copa del Atlantico in Spain.