During the previous seasons, James has been invited to the Lucerne Festival Conducting Masterclass (out of more than 360 candidates) with Bernard Haitink, to the prestigious Tanglewood Music Festival in summer, and to the Deutsche Dirigentenpreis 2017 (German Conductors' Awards), where he was one of the 12 competitors to conduct the WDR Sinfonieorchester and the Gürzenich-Orchester Köln. Prior to that, he has already been the youngest selected conductor for the Gstaad Menuhin Festival, where he was later chosen by Neeme Järvi to conduct in an official festival concert. In 2018, James has been solicited by Kristjan Järvi to conduct the Baltic Academies Orchestra in Berlin, as part of their first international tour, and the following year, he was awarded a fellowship to attend the Atlantic Music Festival in the United States. In Spring 2020, James was invited to assist Finnish conductor Hannu Lintu at the Orchestre de Paris.
Other orchestras he conducted include the Orchestre Symphonique de Mulhouse, the Lahti Symphony Orchestra, the Ostrobothnian Chamber Orchestra, the Tapiola Sinfonietta, the Jyväskylä Sinfonia, the Kirkkonummi Chamber Orchestra, St. Michel Strings, the Helsinki Sinfonietta, the Triangle Orchestra, the Francophonia Orchestra, the Glasperlenspiel Sinfonietta, the Pori Sinfonietta, the Joensuu City Orchestra, the Järvi Academy Symphony Orchestra, the Lithuanian State Symphony Orchestra, and the Rehovot Symphony Orchestra. Proficient in various genres of music, both in the symphonic and operatic world, James conducted the Finnish Chamber Opera on several occasions and was also a conductor at the Helsinki Contemporary Opera Festival, as well as on productions of operas such as The Rape of Lucretia by Britten and Years of Silence by Tuurna. Working regularly with very different repertoires, ranging from early baroque up until the music of our times, James was a guest conductor at the NYKY Ensemble, the Hurra Barockorkester, the Somnium Ensemble, the SaxiBa Ensemble, the Sibelius Academy Baroque Orchestra, and the Buchmann Mehta School of Music Contemporary Ensemble. Further engagements next season include concerts in Finland, Israel, Canada, Ireland and France.
James is a founding member and the Principal Conductor of the Helsinki Chamber Orchestra, a Finnish orchestra born in Autumn 2018 and specialized in the Chamber Orchestra repertoire.
Since 2016, James is also the conductor of the Far(away) Ensemble, a modular and multidisciplinary ensemble with whom he recorded the music of Jacopo Aliboni for the short movies "Du Temps Perdu" and "Le Temps Prend Feu", among which the later was officially selected for the Sarajevo Fashion Film Festival, the Cefalù Film Festival, the Guiar Festival, and the 70th Cannes Film Festival.
In Spring 2018, James has been selected to be the new Conductor of the Polytech Orchestra in Finland. In 2017, he had already been appointed Assistant Conductor at the Helsinki Philharmonic Orchestra, following extensive collaborations during the 2016-2017 season with the orchestra and its Chief Conductor Susanna Mälkki. At the same time, he also studied and graduated from the Orchestral Conducting class of the Sibelius Academy, where he has been accepted at the age of 19, taught and trained there by Sakari Oramo, Hannu Lintu and Atso Almila. In March 2023, James was appointed Principal Conductor of the Orchestre de Chambre de la Drôme in France.
Along with that, James benefited from the teaching of most renowned conductors such as Paavo Järvi, David Zinman, Matthias Pintscher, Sir Roger Norrington, John Storgårds, Mikko Franck, Leif Segerstam, Yoav Talmi, Colin Metters, Adrian McDonnell, and Jorma Panula.
In 2018, the Finnish Broadcasting Company YLE bought the rights to a documentary centered around 3 promising conductors of the Sibelius Academy, among which James S. Kahane. The documentary was released in the Finnish movie theaters in Spring 2020.