Sheriffdeen Bakare
Tysons Corner,VA
Summary
Accomplished Systems Administrator and Information Technology Specialist with over nine years of progressive experience designing, securing, and sustaining mission-critical infrastructure in Department of Defense and federal civilian environments. Proven record of deploying enterprise systems, enforcing cybersecurity frameworks including Risk Management Framework and NIST Special Publication 800-53, automating administrative workflows, and leading cross-functional technical teams. Holds active certifications in cloud and security disciplines, with deep expertise spanning Windows and Linux server management, Active Directory governance, vulnerability remediation, and regulatory compliance.
Overview
10
10
years of professional experience
1
1
Certification
Work History
Information Technology Specialist
United States Army Reserves
Washington, District of Columbia
09.2019 - 09.2026
- Led a team of information technology specialists delivering technical support and system administration for military personnel, ensuring continuous operational readiness across all platforms.
- Maintained servers, workstations, and peripheral hardware to meet rigorous Army standards, utilizing the Army Enterprise Service Desk for efficient incident tracking and resolution.
- Oversaw software installation, upgrades, and configuration across multiple systems, ensuring strict compliance with military standards and measurable improvements to performance.
- Applied advanced diagnostic tools to troubleshoot and eliminate hardware and software defects in high-pressure operational settings, restoring system performance with minimal delay.
- Collaborated with cross-functional units to design and implement information technology solutions aligned with mission goals, leveraging the Global Combat Support System to optimize logistics and service delivery.
- Developed and facilitated training programs for military personnel on system usage and best practices, increasing technical proficiency and mission preparedness across the unit.
- Performed periodic system audits and health assessments to verify compliance with security protocols, proactively identifying and neutralizing potential vulnerabilities before operational impact.
- Governed user accounts and access permissions according to military security policy, utilizing Army-approved tools to streamline access control and monitoring.
Systems Administrator
Network Enterprise Center
Odenton, Maryland
01.2024 - 12.2025
- Deployed, configured, and sustained mission-critical information technology systems and networks across a secure Department of Defense environment, achieving consistent operational efficiency and zero unplanned outages over a 12-month period.
- Evaluated the stability, security, and scalability of installed Windows environments, identifying and resolving over 100 performance gaps that elevated reliability standards across 3 network segments.
- Executed server upgrades, migrations, and fresh installations of Windows Server editions while maintaining minimum disruption windows and full system functionality.
- Resolved complex infrastructure and server incidents for staff and back-end system users, consistently meeting or exceeding service-level agreement targets.
- Directed ticket operations, prioritizing user requests and escalating critical incidents to minimize downtime and ensure timely resolution.
- Authored and maintained Standard Operating Procedures for over 15 recurring information technology processes, strengthening organizational consistency and security compliance.
- Administered account lifecycle management, including provisioning and deprovisioning of user accounts, permissions, and role assignments across enterprise systems.
- Conducted scheduled system audits, performance health checks, and automated backups to protect data integrity and verify operational readiness.
- Leveraged the Army Enterprise Service Management Platform for incident tracking, ensuring all support activities met Department of Defense operational standards.
- Monitored server architecture security continuously, reviewed system error logs, and coordinated troubleshooting processes to resolve user-reported issues.
- Delivered on-site software commissioning and user acceptance testing, contributing to the successful go-live of multiple mission-critical applications.
Systems Administrator
Aberdeen Proving Ground Regional Network Enterprise Center
Aberdeen, Maryland
12.2023 - 12.2024
- Administered Active Directory for enterprise-wide user account creation, role-based access control, group policy configuration, and authentication troubleshooting, supporting thousands of end-users.
- Managed full user provisioning and deprovisioning cycles, maintaining accurate internal databases for accounts, hardware assets, and lifecycle tracking records.
- Coordinated depot operations, overseeing repairs, hardware replacements, and end-of-life management for desktops, laptops, and mobile devices across the enterprise.
- Delivered advanced troubleshooting across Windows, macOS, and Linux platforms, independently resolving 95 percent of escalated incidents without requiring third-party vendor assistance.
- Engineered PowerShell and Bash automation scripts that streamlined account management and system maintenance tasks, reducing manual processing time by an estimated 40 percent.
- Provided remote technical support via Remote Desktop Protocol, TeamViewer, and ConnectWise, maintaining high-end user availability and satisfaction rates.
- Supported enterprise applications including Microsoft 365, Exchange Online, and Salesforce while enforcing system security through patch management, malware scanning, and vulnerability remediation.
- Produced comprehensive technical procedures, workflow guides, and Standard Operating Procedures covering account management, troubleshooting, and depot operations.
Information Technology Specialist
Engineering Software and Network Services – Department of Homeland Security Office of Inspector General Headquarters
Washington, District of Columbia
02.2021 - 08.2023
- Monitored network traffic patterns, detected emerging vulnerabilities, and deployed security patches and updates using the Nessus vulnerability scanner to harden the federal network perimeter.
- Diagnosed the root causes of complex technical failures, investigated remediation options, and repaired faulty hardware and software components to restore full operational capacity.
- Supported end users by resolving information technology issues efficiently, maintaining a consistently positive service experience across the organization.
- Conducted comprehensive security audits, including intrusion detection systems and recurring vulnerability assessments, achieving a 30 percent reduction in identified data breach incidents over 18 months.
- Produced detailed technical documentation encompassing system configurations, troubleshooting procedures, and best practices, increasing team productivity and knowledge retention across the support unit.
Helpdesk Administrator
S2 Technologies – Aberdeen CSISR Contract
Aberdeen, Maryland
01.2020 - 01.2021
- Served as lead administrator for Active Directory operations, governing remote access controls and user permissions while implementing proactive monitoring to sustain system integrity and mission continuity.
- Directed data center infrastructure operations, ensuring physical components were properly installed, secured, and configured; oversaw routine and corrective maintenance on virtual and physical systems.
- Administered workstations, servers, virtual machines, and desktop environments to guarantee availability, compliance, and mission-critical readiness.
- Functioned as the senior escalation authority within the remediation ticketing system, reviewing and elevating Tier 1 incidents to Tier 2 and coordinating resolution to minimize operational disruption.
Computer Technician
Reliasource – Social Security Administration Headquarters
Baltimore, Maryland
02.2017 - 01.2020
- Installed and resolved complex hardware and software issues, delivering precise, timely solutions that maintained uninterrupted operations across the agency.
- Supervised daily operations of vital mainframe arrays and server racks, assuring peak throughput and environmental compliance standards.
- Strengthened agency communication capabilities by managing the installation of workstations and Voice over Internet Protocol telephone systems throughout headquarters.
- Configured advanced Polycom conferencing units to enable seamless inter-departmental communication across multiple facilities.
- Orchestrated the large-scale migration of Social Security Administration hardware, preserving data integrity and sustaining full operational consistency throughout the transition.
Education
Bachelor of Science - Computer Science
Western Governors University
Salt Lake City, UT12.2026
Certification
- CompTIA Security+
- Amazon Web Services Cloud Practitioner
- Microsoft Azure Administrator (AZ-104)
- HDI Customer Service Representative
Timeline
Systems Administrator
Network Enterprise Center
01.2024 - 12.2025
Systems Administrator
Aberdeen Proving Ground Regional Network Enterprise Center
12.2023 - 12.2024
Information Technology Specialist
Engineering Software and Network Services – Department of Homeland Security Office of Inspector General Headquarters
02.2021 - 08.2023
Helpdesk Administrator
S2 Technologies – Aberdeen CSISR Contract
01.2020 - 01.2021
Information Technology Specialist
United States Army Reserves
09.2019 - 09.2026
Computer Technician
Reliasource – Social Security Administration Headquarters
02.2017 - 01.2020
Bachelor of Science - Computer Science
Western Governors University