Heather Britto
Gaffney
Summary
Business-minded Network Administrator with 4 years of experience in supporting server environments. Determined and focused in managing network infrastructure and optimizing environment while reducing redundancy. Considered expert in troubleshooting complex problems and reaching innovative solutions while adhering to rules and requirements of project scope. Dynamic team player when interfacing with other staff members, vendors and end-users.
Demonstrates strong analytical, communication, and teamwork skills, with proven ability to quickly adapt to new environments. Eager to contribute to team success and further develop professional skills. Brings positive attitude and commitment to continuous learning and growth.
Overview
5
5
years of professional experience
1
1
Certification
Work History
Network Administrator / IT Security Analyst
Denny’s Inc.
08.2020 - Current
- Administer and secure Cisco LAN/WAN environments, implementing VLANs, ACLs, segmentation, and Layer 2/3 configurations to improve performance and security.
- Manage Palo Alto Next-Generation Firewalls and GlobalProtect VPN, maintaining security policies, remote-access compliance, and user authentication.
- Monitor and analyze Palo Alto and Strata firewall logs; support incident investigations and leverage Splunk for security event correlation.
- Support Aruba wireless infrastructure using Aruba Central with RADIUS-based authentication for enterprise-grade secure connectivity.
- Maintain and secure Microsoft DNS/DHCP servers to ensure accurate, reliable, and protected IP and name resolution services.
- Use SolarWinds and Wireshark to monitor network health, detect anomalies, and identify potential security threats.
- Collaborate with engineering teams on firmware upgrades, configuration hardening, and device patching across all network and security appliances.
- Coordinate with ISPs and service vendors to maintain secure, stable, and redundant WAN connectivity.
- Create and maintain network documentation, security configurations, topology diagrams, and change-control records for audit readiness.
- Provide Tier 2/3 support and participate in on-call rotation to resolve network and security incidents 24/7.
- Manage all third-party public CA certificates/Domains used for RADIUS, HTTPS, and wireless authentication security.
- Configure and manage ClearPass as well as the API integrations for Envoy, ServiceNow, and Aruba Central.
- National restaurant organization requiring 24/7 secure, high-availability network operations across corporate and retail environments.
- Infrastructure & Security Projects
- LAN Switch Upgrade: Migrated from Cisco Catalyst 3600 to Catalyst 9300 series, improving performance, security, and management visibility.
- Core Switch Modernization: Upgraded from legacy core switches to Cisco Catalyst 9600, enhancing backbone reliability and throughput.
- Server Switch Replacement: Deployed Cisco Nexus switches to modernize datacenter connectivity and increase redundancy.
- Wireless System Modernization: Designed and implemented the migration from Aruba AOS8 (on-prem) to Aruba AOS10 Central, improving WiFi security, scalability, and cloud management, and delivering WiFi 6 at corporate HQ.
- Intune / ClearPass Integration: Built ClearPass policies and role mapping for Intune-managed Windows and macOS devices.
- Achievements
- Worked with cross functional teams to implement Zero Touch authentication on endpoints.
- Improved Wireless performance by upgrading to WiFi 6 and fine tuning RF.
- Identified and immediately resolved issues with network devices.
- Maintained network hardware and software and monitored network to support network availability to end users.
Education
Associate of Applied Science - Computer Science (Network & Cybersecurity Focus)
Spartanburg Community College
Spartanburg, SC05-2019
Skills
- Networking: Cisco LAN/WAN, VLANs, Routing & Switching, TCP/IP, VPN, RADIUS/TACACS, AAA Authentication
- Security: Palo Alto GlobalProtect VPN, Next-Generation Firewalls, URL Content Filtering, Access Control
- Wireless: Aruba Wireless Systems, AirWave / Aruba Central
- Infrastructure: Microsoft DNS/DHCP, SolarWinds Network Monitoring, Ethernet Wiring
- Voice Systems: Cisco/Microsoft VoIP
- Cloud & Data Center: Cisco Three-Layer Hierarchical Model, Network Virtualization
- Tools: Wireshark, Panorama, SNMP, Network Documentation Tools
- Soft Skills: Technical Documentation, User Support, Project Collaboration, Remote Work Efficiency
- Data backup maintenance
- Network repairs and maintenance
- Computer systems installation
Certification
- CompTIA Security+
- Cisco Certified Network Associate (CCNA)
VP Discretion Spot Bonus
I have received two VP Discretionary bonuses. One is for my outstanding work in completing the Meraki switch/router stack install for all of our Denny's restaurants. One is for investigating our VoIP billing and reducing our monthly bill from 70,000 dollars a month to 6,000.
Languages
English
Native or Bilingual
Timeline
Network Administrator / IT Security Analyst
Denny’s Inc.
08.2020 - Current
Associate of Applied Science - Computer Science (Network & Cybersecurity Focus)
Spartanburg Community College