Tommie Seals
Professional Summary
IT Systems Administrator with 12+ years of experience managing enterprise infrastructure, endpoint management, and cloud operations. Expert in Microsoft 365, Intune/Endpoint Manager, Azure AD, VMware vSphere, and ServiceNow ITSM. Proven track record in automation, security compliance, and team leadership. Active Secret Clearance. AZ-104 and SSCP certified.
Core Skills
Endpoint Management: Microsoft Intune, Endpoint Manager, Windows Autopilot, Autopatch, Win32 app packaging, Compliance policies
Identity & Access: Microsoft Entra ID (Azure AD), Conditional Access, MFA, RBAC, Dynamic Groups, Active Directory
Cloud & Infrastructure: VMware vSphere 8.x, ESXi, vCenter, Windows Server 2016-2022, Azure, AWS/GCP basics
Microsoft 365: Exchange Online, SharePoint Online, Teams, Power BI, OneDrive
Security: Microsoft Defender for Endpoint/XDR, BitLocker, KnowBe4, Phishing simulations
Backup & DR: Cohesity DataProtect, Cloud Archive, FortKnox, DR validation
ITSM: ServiceNow, Incidents, Requests, Changes, CAB, Knowledge Base
Scripting & Automation: PowerShell, Detection/Remediation scripts, Automation workflows
Hardware: Cisco UCS, Dell iDRAC, Server provisioning
Asset Management: Lansweeper, Enterprise asset visibility
Professional Experience
IT Systems Administrator (Promoted to Supervisor)
Centers for Disease Control and Prevention (CDC)
Atlanta, GA (Remote) | January 2021 – December 2024
- Promoted to IT Supervisor in 2023, leading a team of 3 junior administrators
- Managed 1,500+ endpoints via Microsoft Intune, Autopilot, and Compliance policies
- Implemented Windows Autopilot and Autopatch across global CDC sites, reducing deployment time by 60%
- Designed and deployed 100+ Win32 applications via Intune, ensuring AV/EDR compatibility
- Administered Microsoft Entra ID (Azure AD) for 2,000+ users: Conditional Access, MFA, RBAC, Dynamic Groups
- Managed Microsoft 365 tenant: Exchange Online, SharePoint, Teams, Power BI administration
- Enforced BitLocker encryption and Conditional Access policies for compliance
- Configured and monitored Microsoft Defender for Endpoint/XDR for threat detection and response
- Administered VMware vSphere 8.x environment (200 VMs, ESXi 8.0, vCenter management)
- Handled 50+ ServiceNow tickets weekly: incidents, requests, change management, CAB participation
- Authored 100+ SOPs and training materials for IT processes and tools
- Conducted KnowBe4 phishing simulations, reducing click rate from 18% to 3%
- Collaborated with federal security teams on compliance audits and DR exercises
Systems Administrator
Department of Veterans Affairs (VA)
Houston, TX | March 2017 – December 2020
- Managed enterprise VMware vSphere infrastructure (1,300 VMs, ESXi 6.7/7.0)
- Deployed and managed Cohesity DataProtect: 68 TB protected, 350 backup jobs, cloud replication
- Administered Windows Server 2016-2019: Active Directory, Group Policy, WSUS, file/print services
- Provisioned and maintained Cisco UCS servers and Dell iDRAC hardware
- Migrated 500+ users to Microsoft 365 (Exchange Online, SharePoint, Teams)
- Implemented Lansweeper for enterprise-wide asset inventory and compliance tracking
- Created PowerShell automation scripts for user provisioning, backup reporting, and system monitoring
- Supported ITSM workflows via ServiceNow: ticket routing, change requests, knowledge articles
- Conducted monthly DR tests and backup validation exercises
- Worked with federal compliance teams on FISMA and VA security controls
IT Support Specialist
Shell Oil Company
Houston, TX | June 2013 – February 2017
- Provided Tier 2/3 desktop support for 800+ users in a 24/7 energy operations environment
- Managed Active Directory user accounts, security groups, and Group Policy Objects
- Deployed Windows 7/10 images via SCCM and managed software distribution
- Troubleshot hardware issues: Dell workstations, printers, network connectivity
- Supported enterprise applications: SAP, Microsoft Office, Citrix VDI
- Documented technical procedures and maintained internal knowledge base
- Participated in IT project rollouts: Office 365 migration, desktop refresh cycles
Certifications
- Microsoft Certified: Azure Administrator Associate (AZ-104)
- ISC² Systems Security Certified Practitioner (SSCP)
- Certified Scrum Master (CSM)
- Active Secret Clearance
Education
Bachelor of Science in Information Technology
University of Houston
Houston, TX | 2013
Position: Senior Systems Administrator - Project Cost Systems
Company: Venture Global LNG
Location: Houston, TX