Celina ISD - Senior Systems Engineer September 2017 - Present
Maintained and managed various IT systems including servers, networks, storage infrastructure to ensure uptime and availability. Administered Windows and Linux servers, including regular updates, patch management, and security configurations. Designed and implement robust backup and disaster recovery solutions, aiding in the preservation of critical data. Administered Active Directory, Azure, Google Workspace. Including user provisioning, group policy management, and access control, supporting over 5500 end users. Directed the transformation to a virtualized infrastructure via the implementation of Hyper-V, VEEAM, and the use of Linux containers through Docker. Performed regular security audits and vulnerability assessments, implementing necessary measures to protect against threats. Managed network infrastructure, including switches, routers, firewalls, and VPNs. Deployed Packetfence NAC for 802.1x authentication & role-based access control. Delivered technical training and documentation for end-users and IT staff. Implemented systems automation using Powershell, Python, SQL, and Rest APIs. Configured and maintained MDM solutions (Mosyle, Jamf Pro) for approximately 6000 Apple devices. NSSM, LLC - Full Stack Developer October 2015 - June 2017
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