From 2011 till 2016, Boris Vayner was on faculty at the Wichita State University teaching viola and chamber music. Several of his students succeeded in winning concerto area competitions, as well as local and national chamber music competitions. From 2011 till 2015, Boris Vayner directed a chamber orchestra comprised of students of the Wichita State University, the Suprima Chamber Orchestra, which has successfully toured Russia in 2012 and has performed at the Barge Music in New York in November 2014. In the spring 2013, Boris Vayner was invited as a Sabbatical Replacement for the Viola Professor at the Luther College, Decorah, IA where he taught viola class and conducted the Luther College Philharmonic Orchestra.
Since 2005, Boris Vayner has been the violist of the St. Petersburg String Quartet, intensively touring throughout North America, South America, Europe and Asia. The highlights of his career include performances at Lincoln Center, Library of Congress, Amsterdam Concertgebouw, Manchester Bridgewater Hall, Dublin National Concert Hall, St. Petersburg Philharmonic Great Hall and appearance at such festivals as Schleswig-Holstein (Germany), MIMO (Brazil), Buxton (England), Fishguard (Wales), Music Mountain, Rockport, Mainly Mozart in San Diego and many more. He has collaborated with such internationally renowned artists as Leon Fleisher, Michael Tree, Peter Donohoe, Anton Nel, and Misha Dichter.
Boris Vayner is also a member of the St. Petersburg Piano Quartet that debuted in New York in May 2014. Besides performing, Boris is a successful arranger; his arrangement of Bach Chaconne for a string quartet was performed live on BBC 3 radio station in July 2012.