SQL Developers oversee the design and maintenance aspects of databases. They use SQL to create, update, or delete data. SQL Developers provide SQL queries - instructions that tell the database what data to retrieve. They also optimize database performance, making sure that the database runs smoothly. Finally, SQL Developers also make sure that the data in the database is accurate and consistent. SQL Developers also collaborate with other teams to understand data requirements and provide the necessary support. They are also responsible for resolving database-related issues and ensuring that databases adhere to industry standards.