David H. Email & Phone Number

Knoxville, Tennessee Area

Knoxville, Tennessee Area

• Administer Active Directory design and implementation in the enterprise environment• Administer cloud environment including Microsoft Azure; administer Exchange and Office 365 (O365) Hybird cloud-hosted exchange service• Administer multi-site VMWare environment• Troubleshoot and conduct performance tuning and capacity management of Active Directory, Exchange, and cloud environments• Manage and administer the network of storage devices serving multiple servers known as the Storage Area Network (SAN) • Mentor team members in the Microsoft Active Directory centralized user and device management database (AD), Virtual Machine (VM) server, O365, and cloud technologies• Administer backup and recovery functions• Assume lead disaster recovery role• Conduct scripting with Microsoft PowerShell

Knoxville, Tennessee Area

• Microsoft Exchange Administration with 2000 users including a webmail system, Smart phone and tablet solutions, Barracuda load balancer, and failover DAG capability. • VMware systems engineer with experience with vCenter and EXSI 5.5 & 6.0. Responsible for all aspects of hardware and network infrastructure associated with upgrading and day to day operations and planning of environment. • Provide Level 3 support for Senior Network Engineers, ERP Administrators, SQL Administrators, IT Developers.

Knoxville, Tennessee Area

• Primary Windows Systems Administrator for a 2000 user network infrastructure spanning many physical locations.• Responsible for maintaining security and user groups within the Active Directory environment, as well as administration for DNS, WINS, DHCP, WSUS, and file and print services. • Domain Administrator for 2 domains within the infrastructure including a 400 user, HIPAA compliant Knox County Health Department Domain.• Group Policy Administrator for all domains within the network, and responsible for approving all group policy changes made to any domain within the network.

Knoxville, Tennessee Area

• Responsible for maintaining network equipment for the internal networks and outlying locations.• Provided second level support to end users for network issues.• Worked closely with systems administration and network security teams to troubleshoot network issues and improve network performance.

Knoxville, Tennessee Area

• All aspects of onsite and offsite network and system troubleshooting