This symposium will cover recent efforts in engineering, measuring, understanding, and employing magnetism in emerging quantum materials with a focus on reduced dimensionality, which is essential for device applications. The symposium's first part will focus on large-scale thin film and bulk crystals synthesis, new functionalities, and electronic, photonic, and magnetic memory device applications. Contributions on synthesis will discuss recent progress in the growth of magnetic quantum materials such as materials with topologically non-trivial band structures, Kagome materials, magnetic topological insulators, frustrated magnetic systems, and spin textures. Symposium contributions from experimentalists and theoreticians will address challenges in growth and discuss how novel magnetic states in quantum materials can be engineered starting from individual atoms and symmetries. Emerging devices discussed will include proposals for the use of magnetic materials in quantum computations and dissipationless energy transfer, spintronics devices, magnetic tunnel junctions (MTJs), and other emerging magnetic devices. Symposium contributions will emphasize how engineering and controlling magnetic states can result in novel device functionalities. The second part of the symposium will bridge synthesis and applications and focus on new frontiers of probing magnetic states within the bulk and in nanoscale materials with high precision. Topics will include measurements of magnetic moments with scanning probe techniques, non-linear optical probes, and emerging applications of transmission electron microscopy for studying magnetic moments with atomic resolution. Contributions exploring the use of in situ probes to examine non-equilibrium states and extreme conditions will also be welcomed. This symposium will bring together a diverse pool of young scientists and established leaders to identify major challenges and opportunities within emerging magnetic quantum materials and devices.