Database Performance Optimization Expert Needed

I'm seeking an experienced freelancer to fix a database program and ensure smooth performance. You will also be required to quickly troubleshoot issues as they arise.

Key requirements:
- Fix slow performance issues
- Ensure smooth performance
- Quickly troubleshoot any issues

Ideal skills and experience:
- Expertise in database management systems (preferably MySQL, PostgreSQL, or SQL Server)
- Proven track record in optimizing database performance
- Strong problem-solving skills
- Experience in handling and resolving connection errors and data

Please include relevant experience in your bid.