Years in Enterprise IT
Hands-on work supporting enterprise technology environments, secure systems administration, and critical network infrastructure.
Identity and Access Management · CompTIA Security+ · U.S. Army Veteran
Terrell
Williams
// IAM · Senior Systems Administrator · Cybersecurity and Infrastructure Operations
CompTIA Security+ certified IT professional and U.S. Army veteran with more than eight years of experience supporting enterprise technology environments, administering secure systems, and maintaining critical network infrastructure. Terrell specializes in Identity and Access Management, Active Directory, RBAC, PKI, VPN administration, and secure authentication. He completed Microsoft Identity and Access Administrator training with Accumentum and holds the Microsoft Certified Identity and Access Administrator Associate credential.
CompTIA Security+ Microsoft Identity and Access Administrator Senior Systems Administrator U.S. Army Veteran Anderson, Texas
8+Years supporting enterprise systems, secure access, and network operations
8 yr 10 moU.S. Army service across network and systems administration roles
32Military professionals supervised and mentored during Army service
70,000+Users supported in an enterprise help desk environment at Fort Bragg
// 01
By the Numbers
U.S. Army Service
Supported secure communications and network operations across deployed and home-station environments as a Network Specialist, Network Administrator, and Senior System Network Administrator.
Professionals Mentored
Supervised and mentored 32 military professionals while maintaining encrypted communications capabilities.
Users Supported
Provided enterprise IT help desk support in an environment serving more than 70,000 users at Fort Bragg.
// 02
Operational Highlights
Enterprise Identity and Access Administration
Administered Active Directory user and computer accounts, including provisioning, modification, deletion, group permissions, and VPN access. Applied role-based access control to SharePoint permissions and internal portals at ARMA Global, a General Dynamics company.
Active Directory RBAC VPN Access SharePoint
Public Key Infrastructure Support
Supported PKI authentication by requesting, issuing, monitoring, and revoking security tokens used for secure user authentication and system access.
PKI Security Tokens Authentication Access Control
SIPR, NIPR, and COMSEC Operations
During more than eight years in the U.S. Army, Terrell supported secure communications and network operations involving SIPR and NIPR networks, COMSEC, satellite communications, and cybersecurity controls.
SIPR/NIPR COMSEC SATCOM Cybersecurity
Large-Scale Help Desk and Executive Support
At Occam Solutions, delivered frontline technical assistance and VIP-level support in a 70,000+ user enterprise environment, administering Active Directory accounts and tracking incidents in Remedy.
Help Desk VIP Support Remedy Incident Management
// 03
Experience
Oct 2025 to Present
Consulting · IAM · Cybersecurity
IT Consultant · Cybersecurity and Identity and Access Management
Accumentum® · Austin, Texas Metropolitan Area
- Provides cybersecurity-focused technical consulting specializing in Identity and Access Management, enterprise systems security, and infrastructure operations.
- Applies expertise in Microsoft Active Directory, RBAC, PKI, VPN administration, and secure authentication to strengthen security controls and protect access to critical systems.
- Contributes to security-focused technical assessments, incident resolution, IT service management, and documentation of findings and recommended corrective actions.
Apr 2025 to Present
Career Transition
Career Transition and Small Business Operations
Self-Employed · Texas, United States
- Following enterprise IT and military technology operations, relocated to Texas and focused on establishing and supporting an independent small business.
- Supported business administration, customer communications, scheduling, financial organization, and day-to-day operational requirements.
- Now focused on returning to long-term, full-time technology work in IAM, systems security, infrastructure administration, and technical operations.
Jan 2023 to Apr 2025
Systems Administration · IAM
Senior System Administrator
ARMA Global Corporation, A General Dynamics Company
- Administered Active Directory user and computer accounts, including provisioning, modification, deletion, group permissions, and VPN access.
- Managed SharePoint user permissions and access roles using role-based access control principles.
- Supported PKI authentication by requesting, issuing, monitoring, and revoking security tokens.
- Administered Microsoft collaboration services, including Outlook and Skype accounts through Exchange Server and Skype for Business Server.
- Documented, tracked, and resolved technical incidents and service requests, coordinating across teams and translating support needs into Jira workflows.
- Installed, configured, maintained, and troubleshot Windows workstations, network-connected devices, printers, scanners, and related enterprise hardware.
Jul 2022 to Jan 2023
Enterprise Help Desk
Information Technology Help Desk Technician
Occam Solutions, Inc. · Fort Bragg, NC
- Provided enterprise IT support in a large-scale environment serving more than 70,000 users.
- Delivered frontline technical assistance for desktops, laptops, Windows, Microsoft Office, software installations, and account-related issues.
- Administered Active Directory user accounts and provided VIP-level technical support to executive users.
- Created, documented, tracked, and resolved incidents through the Remedy IT service management platform, escalating complex issues to specialized teams.
Jun 2020 to Oct 2021
Military · Systems and Networks
Senior System Network Administrator
U.S. Army · Fayetteville, North Carolina
- Maintained and administered computer networks and related computing environments, including hardware, systems software, applications software, and configurations.
- Performed data backups and disaster recovery operations, and diagnosed and resolved hardware, software, and network problems.
- Configured, monitored, and maintained email applications and virus protection software, and provided technical support for voice and telecom systems.
- Trained people in computer system use and coordinated with vendors and personnel to facilitate purchases.
Jul 2018 to Jun 2020
Military · Network Operations
Network Administrator
U.S. Army · Fayetteville, North Carolina Metropolitan Area
- Diagnosed, troubleshot, and resolved hardware, software, and network problems, replacing defective components when necessary.
- Monitored network performance, recommended configuration improvements, and determined related hardware or software requirements.
- Performed routine network startup and shutdown procedures, maintained control records and logs, and trained people in computer system use.
Jan 2013 to Jul 2018
Military · Network Support
Network Specialist
U.S. Army
- Diagnosed, troubleshot, and resolved hardware, software, and network and system problems, and replaced defective components when necessary.
// 04
Credentials & Qualifications
Microsoft
Identity and Access Administrator Associate
Microsoft Certified Identity and Access Administrator Associate, earned after Microsoft Identity and Access Administrator training with Accumentum from September 2026 to October 2026.
CompTIA
Security+
CompTIA Security+ certified IT professional, as stated on his professional profile.
Military
U.S. Army Veteran
More than eight years of Army service supporting secure communications, SIPR and NIPR networks, COMSEC, satellite communications, and cybersecurity controls.
Learning
Cloud, Linux, Git, and z/OS Foundations
Completed Introduction to IBM z/OS, Learning Cloud Computing Core Concepts, Learning Git and GitHub, and Learning Linux Command Line.
// 05
Technical Skills
// Identity
Identity and Access Management
Active DirectoryCore
RBACCore
PKIAdvanced
VPN AdministrationAdvanced
// Systems
Systems Administration
Windows AdministrationCore
Exchange / Skype for BusinessAdvanced
PowerShellStrong
VMware / Hyper-VStrong
// Operations
IT Service and Network Operations
Incident ManagementCore
Network SecurityAdvanced
IT Service ManagementAdvanced
Linux Command LineWorking
// 06
Let’s Put Terrell To Work
Best aligned for Identity and Access Management, systems security, infrastructure administration, Active Directory operations, and technical operations roles that need a Security+ certified Army veteran with deep enterprise experience.
LinkedIn: linkedin.com/in/terrellwilliams-it
Location: Anderson, Texas, United States
Current: Accumentum® IT Consultant
// 07
Education
Accumentum®
Microsoft Identity and Access Administrator
Computer and Information Systems Security / Information Assurance training with Accumentum from September 2026 to October 2026.
Full Sail University
Associate's Degree, Information Technology
Completed from August 2022 to February 2024.
Fayetteville Technical Community College
Associate's Degree, General Studies
Completed from 2018 to 2021.
Bryan High School
High School Diploma
Bryan High School.
// Next Step
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