In 2018, Joske joined the Australian Strategic Policy Institute (ASPI) as its youngest ever researcher, working on China-related analysis for the next four years.[10] At ASPI, he wrote prolifically on the CCP's united front work, the People's Liberation Army (PLA), and the Ministry of State Security (MSS).[11] His first ASPI report "Picking flowers, making honey", on the PLA's use of research collaboration with foreign universities to advance its technology transfer efforts and weapons research, catalyzed legislation in the United States Congress to ban Chinese military researchers from U.S. government-funded laboratories.[5][6][12]
In September 2020, Joske was banned from entering China. The Global Times, an ultranationalist CCP mouthpiece, announced his ban – alongside that of Clive Hamilton – without explanation.[7][13][14] In a public response, Joske described the ban as "the latest attempt by the Chinese Communist Party to… …punish those who shine a light on its activities", noting that the accuracy of his research had never been challenged by the Chinese government.[15]
In May 2022, he joined Australian corporate risk advisory firm, McGrathNicol, as a senior risk advisor.[16]
^Alex Joske [@alexjoske] (September 24, 2020). "Statement on @globaltimesnews report that I have been banned from entering China. I won't be doing interviews on this" (Tweet) – via Twitter. Chinese state media reports that I have been banned from entering China are the latest in a series of attempts by the Chinese Communist Party to punish those who shine a light on its activities. I am proud of my research on the Chinese Communist Party's efforts to interfere in politics and transfer technology from around the world. The accuracy of my research on these topics has never been seriously challenged by the Chinese government. I will continue to study these globally important issues. While I grew up in China and would love to return in better times, I decided years ago that the Chinese government's actions have made the personal risk from traveling to China too high. I have not held or applied for a Chinese visa in years.