To excel as a React Native Expo developer, you need strong proficiency in JavaScript, React Native framework, and mobile application development principles, often supported by a relevant degree or portfolio of past projects. Familiarity with Expo CLI, mobile debugging tools, version control systems like Git, and knowledge of RESTful APIs is crucial. Strong problem-solving abilities, effective communication, and collaboration skills help you work efficiently within cross-functional teams. These combined skills ensure high-quality, scalable mobile apps and the ability to adapt in a fast-paced tech environment.