Systems Administrator It Support

DICKSON ASINUGO

Northern Virginia 703-***-**** ********@*****.***

Security Clearance: Active DoD TS/SCI

PROFESSIONAL SUMMARY

TS/SCI-cleared Systems Administrator with 15+ years of experience supporting secure DoD and federal enterprise environments. Skilled in system administration, privileged account management, technical troubleshooting, and enterprise IT support across NIPR/SIPR and JWICS networks. Proven expertise in aligning with DoD security frameworks, STIGs, and RMF.

CERTIFICATIONS

Certifications: Security+ CE, CASP+, A+, ITILv3, MTA, MCTS

TECHNICAL SKILLS

Active Directory · PowerShell · SCCM · Windows Server · DFS · ServiceNow · VPN (Juniper) · Cisco VoIP · Citrix · Symantec Ghost · PKI/CAC · STIGs · Remedy · BitLocker · Tumbleweed · RDP · NIPR/SIPR

PROFESSIONAL EXPERIENCE

Systems Administrator

Leidos Dec 2024 – Present

Support and maintain mission-critical DoD IT systems, resolving user and enterprise-wide technical issues; assist in complex troubleshooting and implement fixes in secure environments.

Collaborate with stakeholders to gather data, analyze incidents, and develop long-term solutions, contributing to root cause analysis and process improvement efforts.

Produce and maintain technical documentation for IT Operations Center procedures, while ensuring system performance and compliance with mission requirements.

Systems Administrator

Defense Information Systems Agency (DISA) May 2013 – Nov 2024

Delivered Tier III support across WHS/OSD networks, including DFS administration and privileged access control on NIPR/SIPR networks; served as liaison between technical teams and VIP stakeholders.

Managed lifecycle of user accounts, NPEs, distribution lists, shared drives, and security groups in line with DoD directives and IA policies.

Led diagnostics and resolution of escalated technical issues, maintaining systems for classified users including foreign nationals, and coordinating with DISA for Defense Enterprise Email (DEE).

Senior IT Support Specialist

CACI Oct 2001 – May 2013

Supervised Tier II support staff and oversaw daily technical operations, coordinating large-scale deployments, offsite support, and special projects with government POCs.

Provided advanced troubleshooting for Windows systems, Microsoft applications, remote desktop tools, and security platforms (McAfee, BitLocker, HIPS, PKI).

Managed asset control, software installations, network printers/scanners, and user training, utilizing ServiceNow, Citrix, and VPN infrastructure to support secure IT environments.

EDUCATION

Bachelor of Business Administration

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