Marcus Gilbert
United States Marine Corps | Marine Corps Base Hawaii, HI
Hawaii,HI
3
Certification
4
Years of experience
CCNA-certified Network Administrator with 3+ years of experience deploying, configuring, securing, and sustaining enterprise and remote-site networks in high-availability environments. Skilled in Layer 2/Layer 3 routing and switching, WAN/LAN connectivity, satellite communications, IP encryption, VoIP, network hardening, incident response, and complex troubleshooting. Proven technical team lead with experience maintaining 100% network uptime at an overseas site, engineering failover solutions, training junior administrators, resolving 300+ service incidents, and managing more than $1M in networking and communications equipment.
Developed skills in complex network environments, focusing on network performance optimization and security. Demonstrates strong analytical and problem-solving abilities with track record of ensuring seamless connectivity and system reliability. Seeking to transition into new field, bringing wealth of technical expertise and collaborative approach cultivated in dynamic IT setting.
Skills
Network troubleshooting
Router configuration
Access administration
VoIP systems
Team Leadership
Network security
Network systems installation
Satellite communication systems
Technical support
Work History
Network Administrator / Technical Team Lead
3 Years 9 Months- Led network operations for a remote overseas site and maintained 99%+ network uptime while supporting continuous high-availability communications in a demanding environment.
- Managed and maintained $1M+ in networking, satellite communications, encryption, and related equipment, ensuring systems remained secure, available, and operationally ready.
- Designed and implemented satellite WAN failover procedures that increased resiliency and reduced the risk of service interruption during critical operations.
- Integrated distributed communications, radar, and sensor systems across complex network architectures, improving interoperability and reliable data transport between geographically separated platforms.
- Managed and maintained $1M+ in networking, satellite communications, and encryption equipment, ensuring systems remained secure and operationally ready to support mission-critical communications.
- Configured and deployed portable network infrastructure supporting Layer 2/Layer 3 routing, switching, WAN connectivity, and satellite backhaul for rapid establishment of remote network services.
- Resolved 300+ service requests and incidents involving network connectivity, account provisioning, access changes, port activations, secure communications, and enterprise IT support.
- Configured and maintained secure and non-secure VoIP services and coordinated with external technical organizations to resolve routing, security, compliance, and interoperability issues.
- Trained and mentored junior network administrators in IP routing, switch configuration, cybersecurity, network troubleshooting, and system administration through recurring technical instruction.
- Planned and executed network support for large field exercises, coordinating equipment setup, network reconfiguration, troubleshooting, and service restoration to maintain reliable communications.
- Supervised network equipment reconfigurations and integration with satellite WAN services, validating connectivity and supporting rapid changes to operational requirements.
- Trained and mentored junior network administrators in IP routing, switch configuration, and cybersecurity, enhancing team capability through recurring technical instruction.
- Provided remote troubleshooting to geographically separated teams, resolving high-priority network issues and maintaining service continuity without on-site access.
- Supported network testing and integration for distributed sensor platforms, identifying connectivity issues and coordinating changes needed for dependable interoperability.
- Supported multi-organization operations by resolving interoperability issues between networked systems and coordinating technical changes with outside support teams.
- Personally submitted and tracked 50+ support tickets during a single reporting period, coordinating resolution and follow-through for user and network issues across the organization.
- Configured and maintained network infrastructure, ensuring reliable connectivity across multiple units.
- Monitored network performance, identifying and resolving issues to enhance operational efficiency.
- Configured and maintained network infrastructure to ensure optimal performance and security.
- Monitored network traffic using advanced tools to identify and resolve connectivity issues.
Education
Associate of Science - Cybersecurity
- In Progress
- Honors List | 21 credit hours completed
Network Administrator Course - Computer Networking
Honor Graduate | Certificate of Commendation
Certification
- Cisco Certified Network Associate (CCNA) - Active through July 2029
- CompTIA Security+ - Active through June 2028
- CompTIA Network+ - Active through June 2028
Timeline
Network Administrator / Technical Team Lead
United States Marine Corps | Marine Corps Base Hawaii, HI
11.2022 - CurrentRead More
Coastline Community College
Associate of Science from Cybersecurity
Read More
Marine Corps Communication-Electronics School
Network Administrator Course from Computer Networking
Read More
LEADERSHIP & TRAINING
- Led communications personnel during overseas and field assignments, setting technical priorities and coordinating network support across changing operational requirements.
- Conducted recurring hands-on classes for junior administrators covering routing, switching, cybersecurity, troubleshooting, and network configuration.
- Mentored less-experienced personnel during live troubleshooting and deployments, improving their ability to diagnose problems and operate independently.
- Recognized by senior leadership for technical proficiency, composure under demanding conditions, and the ability to execute challenging tasks with little or no supervision.
SELECTED RECOGNITION & DEVELOPMENT
- Recognized by senior leadership for technical proficiency, ability to execute challenging network tasks with little supervision, and performance as a technical leader.
- Completed Corporals Course and recurring professional military education focused on leadership, accountability, and team development.
- Marine Corps Good Conduct Medal | Navy Meritorious Unit Commendation | Sea Service Deployment Ribbon
- First Class Physical Fitness Test and First Class Combat Fitness Test.
ADDITIONAL QUALIFICATIONS
- Clearance: Secret
- Environment: Experienced supporting secure, high-availability networks in enterprise, field, remote, and overseas settings
- Career Focus: Network Administration, Network Engineering, Infrastructure Operations, DoD/Federal IT, Defense Contracting
SELECTED TECHNICAL CONTRIBUTIONS
- High Availability & Resiliency: Engineered automatic WAN failover for satellite-connected networks and supported redundant communications paths for remote teams.
- Network Integration: Connected multiple distributed sensor and communications systems to shared network infrastructure, resolving interoperability gaps and enabling dependable data exchange.
- Remote Support: Provided reach-back network troubleshooting to geographically separated teams, resolving connectivity issues without on-site access and helping maintain service continuity.
- Network Security: Applied federal hardening standards, managed high-assurance encryption devices, and handled cryptographic keys used to protect classified site-to-site communications.
- Enterprise Services: Supported account provisioning, network access changes, switch-port activations, VoIP services, and day-to-day incident resolution for end users and operational systems.
- Technical Leadership: Directed network setup and reconfiguration efforts, prioritized troubleshooting work, and delivered recurring hands-on instruction to increase team capability and independence.
- Field Network Deployment: Planned and executed portable network deployments for temporary and remote locations, establishing routing, switching, WAN connectivity, and secure communications under time constraints.
- Service Management: Coordinated incidents from initial troubleshooting through resolution, tracked actions with external support organizations, and maintained accountability for unresolved network issues.