A CoreGraphics developer designs and implements graphic-intensive applications using Apple's Core Graphics framework. They generate graphics, manipulate images, and control graphic contexts on iOS devices. Their work involves creating graphic effects, custom views, and animations that enhance user interface design. They also deal with color management, PDF document creation, and drawing text. They work closely with other developers to ensure seamless integration of graphics into applications. Their role demands proficiency in Swift or Objective-C, a deep understanding of the Core Graphics framework, and a keen eye for visual details.