A Freelance SQL Server Developer designs, develops, and maintains SQL Server databases for clients on a contract basis. They create database structures, write queries, optimize performance, and ensure data integrity. Freelancers typically work remotely or on-site for various clients, handling tasks such as database migrations, stored procedure development, and troubleshooting. They must have strong SQL, T-SQL, and database management skills, along with experience in performance tuning and security. This role offers flexibility in workload and project selection, making it ideal for experienced developers seeking independent work.