What are some common challenges faced by senior SQL Server developers when managing large-scale databases?

Senior SQL Server Developers often encounter challenges like optimizing complex queries for high performance, ensuring data security and integrity, and maintaining uptime during database migrations or upgrades. Dealing with large volumes of data requires advanced indexing strategies and careful monitoring of server resources to prevent bottlenecks. Collaboration with other teams, such as application developers and system administrators, is crucial to align database structures with evolving business needs and troubleshoot issues quickly.