What is a core developer?

Core developers are highly skilled programmers who contribute directly to the foundational codebase of a software project, often open-source platforms like Bitcoin, Linux, or Python. They are responsible for designing, implementing, maintaining, and reviewing critical changes or updates to the core software. Core developers typically have extensive experience and a deep understanding of the system's architecture, security, and long-term goals. Their work ensures the reliability, scalability, and security of the platform for all users.