Shemyakina took part in the 2007 Summer Universiade in Bangkok and won the individual event after defeating Israel's Noam Mills.

The 2008 European Championships held at home in Kyiv were a major disappointment: she lost four pool bouts and did not qualify for the main table.

After the Games, Shemyakina took a bronze medal at the 2009 European Championships after losing in the semifinals to Olympic champion Britta Heidemann.

[9] In the 2009–10 season she won her first World Cup event in Doha and proceeded to earn a silver medal in Lobnya and a bronze in Nanjing.

She earned her ticket to the 2012 Summer Olympics in London as a member of the top-ranked European team in positions 5–16.

She then beat World No.1 Ana Maria Brânză and reigning European champion Simona Gherman, both by a single hit.

For her Olympic performance she was awarded a second Ukrainian Order of Merit III degree by President Viktor Yanukovych.

At the 2014 World Championships in Kazan she reached the semi-finals, where she lost to Italy's Rossella Fiamingo and took a bronze medal.