A database administrator (DBA) is a professional responsible for managing and maintaining databases. They ensure that data is stored securely, organized efficiently, and accessible to users when needed. DBAs also monitor database performance, troubleshoot issues, and implement backup and recovery plans to protect data from loss. In addition to technical skills, DBAs often collaborate with other IT professionals and stakeholders to understand data requirements. They may work with various database management systems, such as MySQL, Oracle, or Microsoft SQL Server, to optimize data storage and retrieval processes, ensuring that organizations can effectively use their data for decision-making.