Joshua has come to the attention of the leading conductors of today and has studied with James DePreist, Charles Dutoit, David Zinman and Kurt Masur.
He is currently the Assistant Conductor of the National Centre for the Performing Arts Orchestra (Beijing, China). He has conducted the Singapore Symphony Orchestra, Guangzhou Symphony Orchestra, Singapore National Youth Orchestra, Shanghai Symphony Orchestra, Juilliard Orchestra, AACA Orchestra, Kaoshiung City Symphony Orchestra, Musical Olympus Chamber Players, St Petersburg Capella Symphony Orchestra, St Petersburg State Symphony Orchestra, Orchestra of Colours, Cadaques Orchestra, and his successful debut with the Singapore Lyric Opera in Menotti’s Amahl and the Night Visitors in December 2005 led to immediate annual return engagements. In 2006, he was conducting fellow under Charles Dutoit with the Guangzhou Symphony Orchestra. In January 2007, he gave the world premiere of Kelly Tang’s opera, Intrigues of the Qing Imperial Court.
In the summer of 2008, he was awarded a fellowship to the American Academy of Conducting at Aspen under David Zinman. He was also showcased in a Spotlight concert in Harris Hall at the Aspen Music Festival, where his performance of Stravinsky's L'Histoire du Soldat was broadcast live on KAJX radio.
2010, the concerts include debuts with the Beethoven Orchestra Bonn, Macao Symphony Orchestra at the 2010 Macao Arts Festival, Taipei Symphony Orchestra, National Taiwan Symphony Orchestra. 2011, the upcoming concerts include the Musical Olympus International Festival in St Petersburg amongst others. Joshua is a graduate of The Juilliard School.