What is a legacy software developer?

Legacy software developers are professionals who specialize in maintaining, updating, and sometimes migrating older software systems that are still critical to a business but may use outdated technologies or programming languages. They ensure that these legacy systems remain functional, secure, and compatible with newer technologies. Their work often involves troubleshooting, code refactoring, and integrating new features without disrupting existing operations. These developers play a crucial role in organizations that rely on longstanding software for core business processes.