Ju studied textiles and fine art at Goldsmiths and trained originally as a dancer. She is one of the founding members of Blast Theory, which started in 1991, creators of interactive artworks that explore the social and political aspects of technology. Utilizing new forms of interactive art, Blast Theory productions mix audiences across the internet, live performance and real and digital broadcasting. The group has shown work at the Venice Biennale, Sundance Film Festival and at Tate Britain. Commissioners include Channel 4, the BBC and the Royal Opera House. Nominated for four BAFTAs they were also awarded the Golden Nica at Prix Ars Electronica.