A 3D Designer creates detailed models and visualizations for various industries, enhancing product development, marketing, and user experience. Key responsibilities include conceptualizing designs, using software like Blender or Maya, and collaborating with engineers and product teams. Required skills include creativity, technical proficiency, and attention to detail. Often working in studio environments, 3D Designers can progress to Senior Designer or Creative Director roles, with opportunities to specialize in fields like animation or virtual reality.