Shefer's parents enrolled him in skating to improve his health. He teamed up with
Ekaterina Rubleva in 1994. She was his first and only partner. Rubleva / Shefer began competing internationally in the 2001–2002 season and debuted on the
ISU Junior Grand Prix. They placed 5th and 4th at their
2001–2002 ISU Junior Grand Prix events in Sweden and the Czech Republic. At the
Russian Championships, they placed 8th on the senior level and 6th on the junior level. In the 2002–2003 season, Rubleva / Shefer won the silver medal at the
2002–2003 ISU Junior Grand Prix event in China and placed 4th at the event in Germany to qualify for the Junior Grand Prix Final, where they placed 8th. In the 2003–2004 season, they won silver medals at both their events on the
2003–2004 ISU Junior Grand Prix circuit to qualify for the Final. They placed 7th at the Junior Grand Prix Final. They placed 5th on the senior level at the
2004 Russian Championships and then won the bronze medal on the junior level. They were sent to the
2004 Junior Worlds where they placed 6th. Rubleva / Shefer moved up to the senior level internationally in the 2004–2005 season. They placed 4th at the
2004 Nebelhorn Trophy and won the bronze medal at the
2004 Bofrost Cup on Ice. They placed 5th at the
2005 Russian Championships. They competed at the
2005 Winter Universiade, where they placed 5th. In the 2005–2006 season, they made their
Grand Prix debut, placing 9th at the
2005 Skate America. They placed 6th at the
2006 Russian Championships. They changed coaches in spring 2006, moving from
Elena Kustarova to
Alexander Svinin and
Irina Zhuk. In 2006–2007, Rubleva / Shefer withdrew from the
2006 Cup of Russia before the start of the event. They won the bronze medal at the
2007 Russian Championships and were assigned to the
2007 European Championships, where they placed 12th in their debut. In the 2007–2008 season, Rubleva / Shefer placed 8th at the
2007 Skate America and 7th at the
2007 Cup of Russia. They won the silver medal at the
2008 Russian Championships and were sent to the
2008 European Championships, where they placed 13th. They then competed at the
2008 World Championships, where they placed 15th. In 2008–2009, Rubleva / Shefer placed 6th at the
2008 Skate America and then 7th at the
2008 Trophée Eric Bompard. They won their second consecutive national silver medal at the
2009 Russian Championships and qualified for the
2009 European Championships. At Europeans, Rubleva suffered a wardrobe malfunction during the compulsory dance when a strap on her dress broke and briefly exposed her chest. They placed 8th in their third consecutive appearance at the event. Rubleva / Shefer then competed at the
2009 Winter Universiade, where they won the silver medal, 39 years after Rubleva's parents, Svetlana Bakina / Boris Rublev, had won their Winter Universiade silver medal. In 2009–2010, they won a
Grand Prix medal, bronze at the
Cup of Russia. They finished 13th in their second appearance at the
World Championships. Rubleva / Shefer retired from competitive skating in August 2010. Shefer began coaching at the Sokolniki rink in Moscow. == Programs ==