A Database Administrator (DBA) develops, manages, and ensures the optimal performance of databases that store and organize an organization's data. They design and implement database structures, conduct regular system tests, troubleshoot issues, and safeguard data integrity. They are responsible for implementing security measures to protect sensitive data, creating backup and recovery protocols, and performing regular system updates. Additionally, DBA developers also work closely with other IT professionals and end-users to customize databases to meet specific needs, ensuring efficient and seamless data retrieval for users. They also monitor and analyze system performance to recommend improvements.