Marquois Ellis
Saint Hedwig,United States
Summary
Experienced System Administrator with 10 years of expertise, including 7 years of service in the United States Navy and most recent role as a Senior Associate Network Planning Engineer at L3Harris Technologies. Proficient in server management, system monitoring, virtualization, and infrastructure optimization. Skilled in administering complex IT systems, managing user accounts, and maintaining secure networks in high-security environments, including Special Access Programs (SAPs) and Department of Defense (DoD) Senior Leader Network. Proven track record of managing hardware/software configurations, resolving system issues, and providing superior technical support. Active Top-Secret/SCI Security Clearance.
Overview
2024
2024
years of professional experience
1
1
Certification
Work History
Senior Associate Network Planning Engineer
L3Harris Technologies
01.2022 - 01.2024
- Managed system administration tasks for DoD Senior Leader Network, ensuring secure and stable network operations and optimizing server performance.
- Performed system monitoring using SolarWinds and Splunk, conducting root cause analysis and preventive maintenance to ensure continuous uptime.
- Administered Cisco WAN routers, switches, and other network components, implementing configuration changes and resolving complex technical issues.
- Monitored and troubleshot COMSEC/TRANSEC equipment, ensuring compliance with stringent security protocols.
Information Systems Technician: Network Systems Administrator/Technician Supervisor
United States Navy
2019 - 01.2022
- Administered over 300 user accounts across global networks, managing access control, security, and performance enhancements.
- Conducted system maintenance, troubleshooting, and configuration of servers, switches, and routers to ensure optimal performance.
- Led system audits and vulnerability assessments, ensuring compliance with DoD cybersecurity policies and protocols.
- Trained team members and end-users on new technologies, enhancing system efficiency and operational productivity.
- Administered storage and forwarding systems, ensuring reliable system connectivity, fault restoration, and security management.
- Performed minor repairs on IT equipment, minimizing downtime and escalating critical failures to management.
- Configured and maintained computer systems to ensure operational readiness.
- Assisted in troubleshooting hardware and software issues for personnel.
Information Systems Technician: Telecommunications Operations Center Supervisor
United States Navy
2015 - 2018
- Supervised daily operations of the Telecommunications Operations Center, providing oversight and technical support for mission-critical communication systems.
- Prepared and distributed daily operational reports, maintained logs, and trained personnel on system operations to enhance team readiness.
- Ensured continuity for global communication systems, including 48 Nuclear Command and Control Communications circuits, maintaining secure and consistent operations.
Education
Bachelor of Science - Cyber Security
University of Maryland Global Campus
Hyattsville, MD01-2028
Skills
- System Administration: Windows, Linux, Windows Server, Active Directory
- Virtualization & Cloud: VMware ESXi, Virtualization Management
- User Account Management: Active Directory, Microsoft Exchange
- System Monitoring: SolarWinds, Splunk
- Network Administration: LAN/WAN, Cisco Routers/Switches, VoIP
- Security & Compliance: HBSS, ePO, HIPS, ACAS, SIEM
- Technical Support & Troubleshooting
- Risk Mitigation & Information Assurance
- Team Leadership & Training
- Operating Systems: Windows, Linux, Mac OS, Windows Server
- Networking: LAN/WAN, Cisco Routers/Switches, VoIP, Taclane
- Virtualization: VMware, ESXi
- Security: HBSS, ePO, HIPS, ACAS, SIEM
- Software: Microsoft Office 365, Active Directory, WSUS, Microsoft Exchange
- Telecommunications: VTC, CANES
- Programs: Distributed Common Ground System-Navy (DCGS-N)
Certification
- Consolidated Afloat Network Enterprise System (CANES) – System Administrator
- CompTIA Security+
Timeline
Senior Associate Network Planning Engineer
L3Harris Technologies
01.2022 - 01.2024
Information Systems Technician: Network Systems Administrator/Technician Supervisor
United States Navy
2019 - 01.2022
Information Systems Technician: Telecommunications Operations Center Supervisor
United States Navy
2015 - 2018
Bachelor of Science - Cyber Security
University of Maryland Global Campus
AWARDS
Navy and Marine Corps Achievement Medal