Jumaadi works across a range of mediums, including drawing, painting, installation and performance. His works are in the collection of the National Gallery of Australia, the Art Gallery of New South Wales, the Art Gallery of South Australia, the Museum of Contemporary Art Sydney, the Rockhampton Museum of Art, and regional galleries, public and private collections in Australia and overseas.

His practice is informed by personal experience as well as the political and aesthetic lineages of his homeland, including wayang kulit, a tradition of shadow-puppet plays that originated in Java and Bali. Some of his most recognisable works are large-scale paintings on cloth, sculpted buffalo hide, bronze casting and paper cutouts.

Jumaadi has exhibited and performed his work in major shows in Australia and internationally, including the Jakarta Biennale 2011, Moscow Biennale 2013, the Halsey institute of Contemporary Art, SC, USA, 2014, the Singapore Art Museum in 2022,  Gillman Barracks, Singapore (2019 and 2023), the National at Campbelltown Arts Centre in 2023, the Museum of Contemporary Art in Sydney in 2016 and 2024, the Art Gallery of New South Wales, Museum Macan, Jakarta, the Busan Museum of Contemporary Art and Tank Shanghai in 2026. In 2021 he represented Australia at the Gwangju Biennale in South Korea and was an exhibition artist at APT 10 in Brisbane. His major solo exhibitions include My love is in an island far away at Mosman Art Gallery in Sydney (2019-20) and Ayang-Ayang at Bundanon Art Museum in 2024.