Semyon Rozin´s international conducting engagements have included appearances with Rheinisches Kammerorchester, West Germany Radio Orchestra and Chorus of Cologne, the Dutch Radio Chorus (Hilversum), the Israeli Chamber Choir, Flamish Radio Chorus, Belgian Radio Chorus (BRTN).

In the United States he conducted the Bloomington Symphony Orchestra and the St. Paul Civic Orchestra. He also directed the Chamber Orchestra and the Chamber Chorus of Minsk (Belorussia).

In the field of opera he served as Assistant Artistic Director at the Goldovsky Opera Institute, Assistant Music Director at Opera St.Paul, Chorus Master at the Reiseoper Enschede (Netherlands), as a coach at the University of Minnesota, at Twin Cities Opera Guild, at St.Catherine College (St.Paul), Cincinnati Opera, Wiesbaden Opera (Germany), Netherlands Opera (Amsterdam), AIMS in Graz (Austria), Bel Canto Festival Dordrecht (Netherlands).

From 1994 until 2001 he has successfully presented “Opera in concert” series with top International artists at the northern German island Sylt.

From 1984 till 2017 Semyon Rozin has held the position of Assistant Professor at the Opera Studio of Musikhochschule in Cologne (Germany). From 1995 until 2003 he served in the same capacity on the faculty of Musikhochschule Frankfurt/Main.

From 1988 until 1992 he served as a personal coach of Scottish soprano Margaret Marshall (Covent Garden, La Scala, Vienna Opera, Salzburg, Frankfurt, Berlin, Cologne).
Among the artists with whom Semyon Rozin had an intensive artistic collaboration are: Delores Ziegler, Lela Cuberli, Elena Prokina, Theresa Ringholz, Patrizia Biccire, Christiane Oelze, Christopher Ventris, William Mateuzzi, Stefan Vinke, John Tomlinson, Lado Ataneli.

His superb talents were honed under such masters as Ferdinand Leitner, Boris Goldovsky and Neville Marriner.

He completed his Master degree in Choral conducting at Minsk State Conservatory (Belarus), attended conductors program at Mozarteum in Salzburg, Austria and was awarded an Aspen Music School Scholarship, a Baron de Hirsh Scholarship, a Goldovsky Opera Institute Fellowship and a Rochefeller Grant.

Semyon Rozin conducted Masterclasses and taught in USA, Canada, Australia, New Zealand, South Korea, Taiwan, Hong Kong, Germany, Austria, The Netherlands.

Semyon Rozin has founded and served as an Artistic director of Vianden International Music Festival and School in Luxembourg (2009 -2018) and of Saarburg International Music Festival and School in Saarburg, Germany (2010 – currently).