Semyon Rozin´s international conducting engagements have included appearances with Minsk Chamber Orchestra and Chamber Chorus of Minsk State Conservatory (Belorussia), the Bloomington Symphony Orchestra and St. Paul Civic Orchestra (Minnesota), 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) among the others.
In the field of opera he served as Assistant Artistic Director/Conductor at the Goldovsky Opera Institute, Assistant Music Director with 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 Fstival Dordrecht (Netherlands).
From 1994 until 2001 he has successfully presented “Opera in concert” series at the northern German island Sylt.
Since 1984 Semyon Rozin has held the position of Assistant Professor (Vocal coach) at the Opera Studio at the Musikhochschule in Cologne (Germany). From 1995 until 2003 he was active 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, Teresa Rintholz, Christiane Oelze, William Mateuzzi, John Tomlinson, Lado Ataneli, Christopher Ventris, Stefan Vinke.
Since 2012 Semyon Rozin has been a part of the Mentors program as a Visiting Vocal coach with Nellie Melba Opera Trust in Melbourne.
Since 2013 he is a Visiting Vocal coach at the Waikato University in Hamilton, New Zealand.
Semyon Rozin presented Master classes in the USA, Canada, South Korea, Taiwan, Australia, New Zealand, Germany, Austria, Netherlands.
His superb talents were honed under such masters as Ferdinand Leitner, Boris Goldovsky and Neville Marriner.
Semyon Rozin obtained BM degree in Choral conducting and Vocal accompanying from Charkov Special Music School for gifted children (Ukraine) and MM degree in Choral conducting from Minsk State Conservatory (Belorussia).
He completed Orchestra conducting course at the Summer academy of Mozarteum in Slazburg, Austria, and was awarded an Aspen Music School Scholarship, a Baron de Hirsh Scholarship, a Goldovsky Opera Institute Fellowship and a Rochefeller Grant.