a) Six (6) years of information systems experience in: Experience in enterprise database administration, including the installation, configuration, monitoring, maintenance, performance tuning, backup and recovery, security, and troubleshooting of Microsoft SQL Server or comparable relational database management systems in on-premises, cloud, or hybrid environments. four (4) years of information systems experience in: Experience in enterprise database administration, including the installation, configuration, monitoring, maintenance, performance tuning, backup and recovery, security, and troubleshooting of Microsoft SQL Server or comparable relational database management systems in on-premises, cloud, or hybrid environments.