We are one of the five Project Infrastructure Teams (PITs) selected by NASA in 2023 to build the science infrastrucure for its flagship space mission, the Nancy Grace Roman Space Telescope, to be launched in 2026. We are a team of almost 100 research scientists based at institutions around the US, with some collaborators based in France and Japan. Our goal is "Maximizing Cosmological Science with the Roman High Latitude Imaging Survey" (HLIS), with a particular focus on using the weak gravitational lensing probe to understand the dark components of our universe.