Gazebo is an open source physics simulator for robots of any kind. Robotics professionals and hobbyists save time and effort by testing their algorithms and designing robots in a simulated environment before doing so with real hardware. Gazebo provides graphics, various physics engines, and programmatic and graphical interfaces with which to run simulations.
My efforts focus on the latter graphical interfaces. When we add functionality, such as GUIs to construct buildings and robot models, or create web resources like an online model database or a tool to run simulations in the cloud, I conduct competitive analyses, construct user task flows, create and test prototypes, produce visual assets, and work closely with my engineering colleagues during implementation.