Wadner Charles
Waldorf,MD
Summary
System Administrator with experience supporting enterprise Windows and Linux environments, Active Directory administration, and network infrastructure troubleshooting. CompTIA CySA+, Security+, Network+, and A+ certified with a background in system monitoring, vulnerability remediation, and secure access management. Proven ability to diagnose technical issues, maintain system reliability, and support secure IT environments in government and enterprise settings.
Overview
6
6
years of professional experience
1
1
Certification
Work History
Senior Service Desk Analyst
Innovative Management Concepts
Arlington, VA
10.2023 - Current
- Provided technical support and resolved incidents, maintaining operational continuity for enterprise users.
- Troubleshoot Windows operating systems, network connectivity issues, and endpoint configuration problems.
- Administered Active Directory accounts and permissions, ensuring secure user access across enterprise environments.
- Collaborated with cybersecurity teams to remediate vulnerabilities and enhance overall system security.
- Monitor system performance and assist in diagnosing infrastructure and connectivity issues across enterprise environments.
Junior System Administrator
MIC Group
Brenham, TX
02.2022 - 08.2023
- Supported Windows and Linux server environments, ensuring system stability and uptime.
- Executed system patching cycles, applied security updates, and implemented configuration changes.
- Troubleshot LAN/WAN connectivity issues and supported network infrastructure maintenance to ensure operational continuity.
- Performed log reviews and event monitoring to identify potential issues and assist with root-cause analysis.
- Assisted with backup operations, system imaging, and hardware deployment to enhance user environment reliability.
Desktop Support Technician
ABBTECH Professional Resources
Houston, TX
12.2019 - 10.2021
- Delivered front-line technical support for hardware, software, and peripheral devices, enhancing user experience across multiple departments.
- Diagnosed and resolved issues related to system performance, operating systems, and security configurations, ensuring optimal functionality.
- Performed workstation deployments, system imaging, and device configuration.
- Managed hardware inventory and ensured system compatibility across organization, contributing to streamlined operations.
Education
Bachelor of Science - Social Science Education
University of South Florida
Tampa, FLSkills
- User access management
- Account management
- Active Directory management
- Group Policy configuration
- Incident response coordination
- Network troubleshooting
- Network diagnostics
- VPN setup and troubleshooting
- TCP/IP networking
- DNS and DHCP services
- Cloud service management
- System hardening
- Patch management
- Wireshark proficiency
- Technical documentation
- Cross-platform support
Certification
- CompTIA CySA+
- CompTIA Security+
- CompTIA Network+
- CompTIA A+
Projects
Cybersecurity Detection & Monitoring Lab, Built a simulated enterprise network environment to practice system monitoring and intrusion detection., Configured VLAN segmentation and firewall rules to improve network visibility and security., Conducted vulnerability scans and network traffic analysis using Wireshark, Nmap, and Nessus., Practiced log analysis and threat detection techniques using SIEM monitoring tools.
Clearance
Active DoD Secret Clearance
Timeline
Senior Service Desk Analyst
Innovative Management Concepts
10.2023 - Current
Junior System Administrator
MIC Group
02.2022 - 08.2023
Desktop Support Technician
ABBTECH Professional Resources
12.2019 - 10.2021
Bachelor of Science - Social Science Education
University of South Florida