Throughout his senior career, Yakimovich played for SKA Minsk in the Soviet Union/Belarus, and later for Teka Cantabria and Portland San Antonio in Spain. After the Soviet Union was disbanded, he opted to play for the national team of his native Belarus.
Besides numerous other achievements, he won the EHF Champions League with all the three teams. Currently he is one of the only three players to win the trophy with three different teams, the other two being Mateo Garralda and Jose Javier Hombrados from Spain. In 1990 he won a silver medal on the World Championship as a member of the Soviet Union team Two years later he won the gold medal on the 1992 Olympics with the Unified Team. He participated on several tournaments with the Belarusian team, and although they never won any medals, he gained several individual recognitions, like coming in as the third best scorer overall on the 1995 World Championship.
