Danijil is interested in music, theater, and clowning art. He plays the guitar and harmonica, writes songs, and performs in musical groups of Budapest.
Career
Early career
Szemko began skating in 2006. He previously competed with Yana Bardadym and Vera Gorodetskaia for his native Ukraine. Szemko teamed up with Villő Marton to represent Hungary in the 2015–16 season.
2015–2016 season
Marton/Szemko made their international debut on the Junior Grand Prix series, finishing fifteenth in Latvia and eleventh in Croatia. They then finished thirteenth at the NRW Trophy and seventeenth at the Santa Claus Cup. At the 2016 Four National Championships, Marton/Szemko finished fifth overall and won the Hungarian junior silver medal behind Kimberly Wei and Illias Fourati. As a result, they were assigned to the 2016 World Junior Championships, where they finished twenty-third and did not qualify for the free dance.[2]
Marton/Szemko won the 2018 Four National Championships ahead of the Czech Republic's Taschlerová/Taschler and Poland's Borysova/Zawadzki to earn their first junior national title. At the World Junior Championships, they were fifteenth in the short dance and twelfth in the free to finish fourteenth overall.[2]
2018–2019 season
Marton/Szemko started with a twelfth-place finish at JGP Slovenia and a thirteenth-place finish at JGP Armenia. The team finished tenth at Volvo Open Cup and earned silver at the Christmas Cup. Marton/Szemko won silver at the 2019 Four National Championships behind Taschlerová/Taschler but retained their Hungarian junior national title for a second consecutive season. At the 2019 World Junior Championships, they were twenty-third in the rhythm dance and did not advance to the free dance.[2]
2019–2020 season
Marton/Szemko opened the season with an eighth-place finish at JGP France and a fifteenth-place finish at JGP Croatia. They earned bronze at Open d'Andorra and finished fifth at Santa Claus Cup. Marton/Szemko again won silver behind Taschlerová/Taschler at the 2020 Four National Championships while retaining their Hungarian junior national title. The team finished eighth at 2020 Mentor Toruń Cup. At the 2020 World Junior Championships, Marton/Szemko were seventeenth in the rhythm dance but fell to nineteenth in the free dance and remained nineteenth overall.[2]