Australia's science & innovation performance is deficient: patents have declined; research outputs lag behind other OECD countries; & leading OECD countries have three times more research & development personnel in industry. The Australian Government invests heavily in building the supply of science, technology, engineering, & math (STEM) graduates. Yet STEM workers often leave STEM occupations. There is a strong economic imperative to retain STEM employees. Using a job embeddedness perspective, this project clarifies why these employees stay or leave. Beyond advancing theory, project outputs will include an evidence-based toolkit, online masterclass, & an online community of practice, to contribute to the broader STEM community.