
BIOGRAPHY
South African conductor Jacobus de Jager is the Mills Williams Junior Fellow in Conducting at the Royal Northern College of Music and a Royal Philharmonic Society Conductor with the Royal Northern Sinfonia.
Jacobus de Jager is the Mills Williams Junior Fellow in Conducting at the Royal Northern College of Music and a Royal Philharmonic Society Conductor for 2026–28, in partnership with the Royal Northern Sinfonia. His work spans the symphonic repertoire, opera and contemporary music, and he builds concerts so that someone coming for the first time can find their way in.
He is a semi-finalist in the Concours de Genève Conducting Competition, which concludes in November with the Orchestre de la Suisse Romande, Ensemble Contrechamps and the Orchestre de chambre de Genève. In June he was one of the final seven conductors in the Mahler Competition in Bamberg, where he conducted the Bamberg Symphony Orchestra, and in April he was a finalist in the BSO Calleva Conducting Competition with the Bournemouth Symphony Orchestra. He has twice been a semi-finalist in the Herbert von Karajan Young Conductors Award in Salzburg, and in 2022 he won the 5th South African Conductors’ Competition.
He was a Conducting Fellow of the 2026 Lucerne Festival, where he conducted three concerts — two Academy programmes and the Composers’ Seminar concert, presented by Dieter Ammann and Unsuk Chin — working with Jörg Widmann, Baldur Brönnimann and Peter Rundel. At the Fiskars Summer Festival he was invited by Jukka-Pekka Saraste to share the podium with him for the closing concert, which De Jager opened.
He has conducted the Orchestre de la Suisse Romande, Royal Scottish National Orchestra, BBC Scottish Symphony Orchestra, Mozarteumorchester Salzburg, The Hallé, Manchester Camerata, Orchestre national de Metz Grand Est, Orchestre de chambre de Genève, Südwestdeutsche Philharmonie Konstanz and the Korean National Symphony Orchestra, and has assisted at the Royal Liverpool Philharmonic and the BBC Philharmonic. In opera he conducted the final performance of the RNCM’s The Love for Three Oranges and the cover cast of the Royal Conservatoire of Scotland’s Die Zauberflöte.
He has given a number of world premieres, among them Jalalu-Kalvert Nelson’s Endangered Dreams and Caio Azevedo’s drowning toward an inflatable sun at the 2026 Lucerne Festival, Matthijs van Dijk’s A Pulse Before Dawn with the Stellenbosch International Chamber Music Festival Alumni Orchestra, and Kathleen Tagg’s Please Dream: In his words, written in tribute to Archbishop Desmond Tutu. He is interested in how a new score reaches an audience — in programming and pacing a concert so that unfamiliar music arrives on its own terms, and in speaking to audiences from the platform.
He returns to South Africa to work each year, most often with the Cape Town Philharmonic Orchestra, and was resident conductor of the Stellenbosch University Symphony Orchestra. He has been part of the Stellenbosch International Chamber Music Festival for many years and conducted its Alumni Orchestra in 2025. He received the Toyota Stellenbosch Woordfees award for Best Upcoming Artist in 2022.
De Jager began as a pianist, receiving his BMus and an MMus in performance at Stellenbosch University, both cum laude, and studying conducting with Daniel Boico in Cape Town and Alexander Polishchuk in St Petersburg. He completed his MMus in Conducting at the Royal Conservatoire of Scotland under Martyn Brabbins, graduating with distinction and the RCS Conducting He has taken masterclasses with Daniele Gatti, Marin Alsop, Paavo, Neeme and Kristjan Järvi, Thomas Søndergård, Johannes Schlaefli, Sian Edwards, Ludovic Morlot, Antony Hermus, Nicolás Pasquet, David Reiland, Ryan Bancroft, Christoph Altstaedt, Alpesh Chauhan and Michalis Economou.Prize.
TRAINING
Mills Williams Junior Fellow in Conducting, Royal Northern College of Music — current
Royal Conservatoire of Scotland — MMus Conducting with Martyn Brabbins; RCS Conducting Prize
Stellenbosch University — MMus and BMus Piano Performance, both cum laude, with Nina Schumann and Luis Magalhães
FESTIVALS AND PROGRAMMES
Lucerne Festival Contemporary Conducting Programme, 2026
Fiskars Summer Festival Conducting Programme, 2026
Royal Philharmonic Society Conductor, with the Royal Northern Sinfonia — 2026–28
COMPETITIONS
Concours de Genève Conducting Competition, 2026 — Semi-finalist
Mahler Competition, Bamberg, June 2026 — Semi-finalist
Mills Williams Conducting Fellowship Competition, RNCM, 2025 — Winner
Herbert von Karajan Young Conductors Award, Salzburg, 2023 and 2025 — Semi-finalist
Korean National Symphony Orchestra International Conducting Competition, 2024 — Semi-finalist
5th South African Conductors’ Competition, 2022 — First Prize
ORCHESTRAS
Bamberg Symphony Orchestra
Orchestre de la Suisse Romande
Royal Scottish National Orchestra
BBC Scottish Symphony Orchestra
Mozarteumorchester Salzburg
The Hallé
Manchester Camerata
Bournemouth Symphony Orchestra
Royal Northern Sinfonia
Lucerne Festival Contemporary Orchestra
Orchestre national de Metz Grand Est
Orchestre de chambre de Genève
Silesian Philharmonic
Korean National Symphony Orchestra
Orchestra of Scottish Opera
Hebrides Ensemble
oenm — œsterreichisches ensemble für neue musik
Südwestdeutsche Philharmonie Konstanz
Cape Town Philharmonic Orchestra

