He is a student at the South-Eastern Finland University of Applied Sciences in Kouvola, where he studies game design.

[3] Beginning his season on the junior level at the 2016 Lombardia Trophy, Selevko finished in ninth place.

He went on to make his debut on the Junior Grand Prix series, placing twenty-fourth at the 2016 JGP Estonia.

Going on to compete at the 2017 Volvo Open Cup and the 2017 Tallinn Trophy, Selevko finished tenth and eleventh, respectively.

[3] Assigned to compete at the 2019 European Youth Olympic Winter Games, Selevko won the silver medal.

[3] Debuting on the senior international level, Selevko finished in fifth place at the 2019 Ice Star and won the gold medal at the 2019 Tallinn Trophy.

Selevko went on to compete at the 2021 Denis Ten Memorial Challenge, the 2021 Cup of Austria, and the 2021 Golden Spin of Zagreb, placing seventh, fourth, and fourteenth, respectively.

[3] Going on to compete on the 2023–24 Grand Prix circuit, Selevko finished eleventh at 2023 Skate Canada International and twelfth at the 2023 NHK Trophy.

[3] Selected to compete at the 2024 European Championships in Kaunas, Lithuania, Selevko would finish a disappointing thirtieth in the short program after falling twice, failing to advance to the free skate segment of the competition.

His brother, Aleksandr, would win silver at the event, becoming the first Estonian skater to ever medal at a European Championships in any discipline.

[4][5] Selevko began the season by competing on the 2024–25 ISU Challenger Series, winning bronze at the 2024 Trophée Métropole Nice Côte d'Azur and finishing ninth at the 2024 Tallinn Trophy.