Celebrating his 10th year with the Frankston Symphony Orchestra, Thaddeus is one of Australia’s foremost young conductors. In the 2020–2021 seasons he served as Assistant Conductor-in-Residence with the West Australian Symphony Orchestra, where he conducted mainstage, young person’s, pops, and side-by-side concerts, and mentored eight talented West Australian conductors, several of whom have since achieved significant success. He has also worked with the Adelaide, Melbourne, and Tasmanian Symphony Orchestras, and the Australian National Academy of Music.

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Internationally, he has served as guest assistant at the Hallé, Deutsche Oper Berlin, Shanghai Opera, and Harbin Symphony Orchestra, and has conducted such ensembles as the Orchestra Filarmonica Italiana, Hungarian National Symphony Orchestra, Orchestre Symphonique de Québec, Orchestre Métropolitain, and musicians of the Orchestre de Paris and the Royal Academy of Music in London. He has also appeared at major international festivals including the Perth Festival, Adelaide Festival, Festival de Domaine Forget in Québec, and the Music in the Summer Air Festival in Shanghai.

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Over his career, he has had the extraordinary privilege of working with many leading conductors of today, including Sir Mark Elder, Yannick Nézet-Séguin, Mark Wigglesworth, Asher Fisch, Nicholas Carter, Oleg Caetani, Jorma Panula, Daniel Harding, Daniele Gatti, Nicholas Braithwaite, Luke Dollman, Benjamin Zander, John Hopkins, and many others. He pays forward the musical generosity he has received as a keen supporter of young musicians through his work with the Australian Youth Orchestra, West Australian Youth Orchestra, Peninsula Youth Orchestra, and Australian New Goldberg Orchestra.

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As a composition undergraduate, he studied with Brenton Broadstock, Stuart Greenbaum, and Barry Conyngham at the University of Melbourne; his popular work for French horn was premiered and recorded in 2008 by Lin Jiang, the Melbourne Symphony, and the ABC.