April 2022 – Present | DREN Infrastructure/Systems Administration T3CACI | Aberdeen, MarylandSenior System AdministratorAccountable for maintaining domain controllers, Active directory, Group Policy management, DNS, PKI/CSRs, and STIGs on Unclassified networks, consisting of 300+ enterprise servers. Coordinating with the organization to guide daily/weekly/annual maintenance planning. Coordinating and implementing software upgrades. Managing daily support operations, which provides assistance for Tier 3 trouble tickets while improving and sustaining relationships with customers and outside agencies.Selected projects…• Generated various automated Powershell solutions to conduct Stigs and Stig Checklists for all machines on the network, that would normally require manual work. Completed 8,509 quarterly Stig checks and remediations: 445(IIS), 1200(ESXi), 5432(VM), 776(VCenter), 656(Tomcat9).• Generated and managed templates for standard operating procedures for daily operations and annual responsibilities.• Installed, migrated, and maintained monitoring tool, Zabbix, for all systems. This ensured functionality of all servers and websites on our networks by generating automatic checks and commands to prevent vital services from failing and staying down for longer than a 5-minute metric.June 2021 – April 2022 | DGS-X Infrastructure/Systems Administration T3CACI | Hampton, VirginiaSenior System AdministratorAccountable for maintaining domain controllers, Active directory, Group Policy management, DNS, PKI/CSRs, and STIGs on multiple security enclave networks, consisting of 75+ enterprise servers. Assisted management to guide daily maintenance planning. Coordination and execution of software upgrades. Served as key resource managing daily support operations, providing assistance on Tier 3 trouble tickets to improve and sustain relationships with customers and outside agencies-Selected projects…• Generated and managed templates for standard operating procedures for daily operations and annual responsibilities.• Reliably handled and scrubbed thousands of Active Directory objects for licensing reports, as well as applied new DNS records for all new projects/sites on the network.• Identified and queried W32TM confliction due to never before tested transfer of physical time servers to virtual, correcting loss of time keeping across entire Domain and averting detrimental damage to the network.May 2015 – May 2021 | Information Systems Technician (Submarines)United States Navy | Norfolk, VirginiaSystem Administrator