Joann Guerrero
Hewitt,TX
Summary
Resourceful IT Network Engineer with comprehensive experience in infrastructure, networking, and systems administration. Expertise in configuring and securing enterprise networks and cloud environments while resolving complex technical issues. Demonstrates leadership in project management and cross-functional collaboration to enhance IT operations and drive process improvements.
Overview
28
28
years of professional experience
Work History
IT Systems Desktop Support III
Dyopath (Caterpillar)
12.2025 - Current
- IT System Analyst Support for entire Warehouse
- Acted as the primary onsite IT resource for all warehouse technology needs, facilitating efficient operations.
- Install, configure, test operating systems, application software, and system management tools.
- Advanced knowledge of Active Directory, Group Policy, DNS, DHCP, SMTP
- Oversaw network configuration for IDFs, APs, patch panels, and switches in MDF to maintain optimal performance.
- Managed inventory of Dell laptops, APC devices, Cisco hardware, scanners, and barcode equipment.
- Coordinated projects involving quotes, POs, and vendor management to ensure timely delivery.
Field IT Network Engineer
Pactiv Evergreen (contract)
12.2024 - 10.2025
- Traveled extensively across Texas, visiting Temple, Corsicana, and Abilene to fulfill job responsibilities.
- Installed, configured, and tested operating systems, application software, and system management tools to ensure optimal system performance.
- Managed inventory of Dell laptops, APC devices, Cisco hardware, scanners, barcodes, and associated supplies.
- Install, configure, and test operating systems, application software, and system management tools.
- Oversaw network configuration of IDFs, APs, and patch panels in MDF to maintain network stability and reliability.
- Work through service now on tickets for issue or request/managed SLA.
- Daily Team meetings and location needs through tickets, emails, and TEAMS
- Executed PC refresh across Texas, upgrading 1500+ PCs to Windows 11, including OS installation, setup, and configuration.
- Only go to people in TEXAS for all factory needs and wants as far as software, inventory, projects, and any IT related needs.
Network SUPPORT II
NEWTEK SOLUTIONS
03.2023 - 06.2024
- CPanel, Plesk, WHMCS, ConnectWise
- Domain registration, DNS, Server Utilized IIS for troubleshooting website issues and management
- Managed email communications with clients, Smarter Mail, Microsoft 365, Windows Server, IIS, Linux, Apache, MSSQL, MySQL, ColdFusion, PHP, ASP.NET
- Provide our customer base with clear and professional communications based on our existing SLAs.
- Configured and maintained networking systems and IP Configurations
- Managed customer expectations and delivered timely responses through ticketing system.
- Customer calls and tickets daily for goals and resolution
- Assisted other teams through overflow calls at tier level 2.
- Prioritize, triage and dispatch tickets to appropriate resources.
- Resolved customer issues with SSL installation and setup, ensuring secure website functionality.
- Prioritize, triage and dispatch tickets to appropriate resource.
- Process shared hosting plan upgrades and downgrades.
- IIS to troubleshoot site issues.
- Provided remote technical support to clients
IT Network ENGINEER I (L4)
AMAZON
06.2022 - 03.2023
- Managed IT operations infrastructure to ensure optimal performance and reliability.
- Installed, configured, and tested operating systems, application software, and system management tools.
- Evaluate the existing systems and provide technical directions to IT support staff.
- Routinely evaluate software for bugs, redundancies, and security issues
- Established clear project goals and developed actionable steps for timely execution.
- Mentor and train other engineers throughout the company and seek to continually improve processes companywide.
- Project Manager for department
- Provide detailed specifications for proposed solutions including materials, manpower and time.
- Assist other department engineers in creating practical demonstrations of proposed solutions and demonstrating them to other members of the team.
- Evaluated software for bugs, redundancies, and security issues to maintain system integrity.
- Managed inventory of Dell laptops, APC devices, Cisco hardware, network configurations, scanners, and barcodes to ensure operational efficiency.
Operations Systems Engineer-NOC
MATCH.COM
Waco, TX
07.2016 - 03.2022
- Developed and maintained data center infrastructure, overseeing hardware management and NOC operations.
- OSPF routing protocol uses that find efficient paths to direct traffic on IP networks.
- Collaborated on network development, implementation, and maintenance of routers, switches, firewalls, and WAN optimization.
- Handled all hardware (Lenovo, Dell, Cisco, Palo Alto, HBA, NICS, Switches, and tape drives.)
- Installed, supported and maintained company hardware and software infrastructure according to best practices.
- OSPF routing protocol uses that finds efficient paths to direct traffic on IP networks.
- Diagnosed network problems involving combination of hardware, software, power, and communications issues.
- Worked with sustaining engineering teams to investigate and resolve software and hardware defects.
- Managed application patches, data backup, security changes and network configuration and replaced boards, changed servers, and loaded and tested software applications.
- Experience and demonstrate knowledge of Network Security, Firewall, Linux, and/or Endpoint Vendors.
- Linux file system, network security, firewall packet handling, syslog, and intermediate level firewall administration.
- Conducted inventory assessments of hardware assets to ensure accurate tracking.
- Zendesk & Jira (Case or Ticket Management), or other CRM.
- Excellent decision-making and problem-solving capability, efficient multi-tasking
- Strong time management skills.
- Identified and categorized equipment issues, responding to service calls to uphold NOC operational effectiveness.
- Coordinated installation, testing, and implementation of network operation equipment and physical infrastructure to ensure operational readiness.
- Completed walk-downs and on-site inspections during equipment installation.
- Analyze operability requirements for upgrades and new equipment installations.
- Identified and categorized equipment issues, responding to calls-for-service to maintain NOC effectiveness.
- Improved switch configuration and fiber optic splicing and termination.
- Oversaw development and maintenance of computer systems, server upgrades and operating systems.
- Administered IP addresses, developed network resources and trained support personnel to provide Tier I support to end users.
- Supported data center power and cooling infrastructure APC
- Administered IP addresses, developed network resources and trained support personnel to provide Tier I support to end users.
- Supported data center power and cooling infrastructure APC
Asset Manager
L3 Harris
01.1999 - 01.2022
Systems Analyst
INTEG
01.1999 - 01.2022
IT/PC Technician
F2Onsite (Dell Clients)
01.1999 - 01.2022
Store Manager
T-Mobile
01.1999 - 01.2022
Territory Manager
Grande Communications (Installations)
01.1999 - 01.2022
Residential Sales Consultant
Time Warner Cable (Installations)
01.1999 - 01.2022
District Manager, Trainer, Recruiter
Lady Foot Locker
01.1999 - 01.2022
Education
Associate of Science - Network and System Administration
ITT Technical Institute
Network and System Administration
McLennan Community College
Network and Cyber Security
Tarleton State University
Skills
- Active Directory
- Windows
- TCP/IP
- DNS implementation
- SCCM
- ServiceNow (Expert)
- VMware, vSphere, ESXi
- Cisco Routers/ Switches
- Firewalls
- Network Security
- VPN/DUO
- Data Center NOC
- Technical Support
- Inventory Control
- Implementation
- Project Coordination
- Project Manager
- Hardware Project management
- Collaboration tools
- Microsoft Teams
- Zoom
- Google Workspace
- Microsoft Office 365
- Power BI
- Cloud services
- Lansweeper
- SSH Putty
- VOIP Systems
- LAN/WAN/SAN
- Fortinet FortiGate
- Palo Alto Experience
- Nic and HBA fiber optics
- Backup recovery
- Remote Desktop
- System Administratoristratoristratoristrator
- Linux
- AC/DC power systems
- HP servers
- Lenovo/Dell Servers
- Web services
- Platforms
- Jira
- All ticket systems 100%
- Operational Planning
- Management
- Firewalls, VPN
- Mapping
- Data Center Management
- Hardware and Software
- Technical Support
- Hardware and Software
- Data Center Management
- Remote Desktop
- Management
Timeline
IT Systems Desktop Support III
Dyopath (Caterpillar)
12.2025 - Current
Field IT Network Engineer
Pactiv Evergreen (contract)
12.2024 - 10.2025
Network SUPPORT II
NEWTEK SOLUTIONS
03.2023 - 06.2024
IT Network ENGINEER I (L4)
AMAZON
06.2022 - 03.2023
Operations Systems Engineer-NOC
MATCH.COM
07.2016 - 03.2022
Asset Manager
L3 Harris
01.1999 - 01.2022
Systems Analyst
INTEG
01.1999 - 01.2022
IT/PC Technician
F2Onsite (Dell Clients)
01.1999 - 01.2022
Store Manager
T-Mobile
01.1999 - 01.2022
Territory Manager
Grande Communications (Installations)
01.1999 - 01.2022
Residential Sales Consultant
Time Warner Cable (Installations)
01.1999 - 01.2022
District Manager, Trainer, Recruiter
Lady Foot Locker
01.1999 - 01.2022
Associate of Science - Network and System Administration
ITT Technical Institute
Network and System Administration
McLennan Community College
Network and Cyber Security
Tarleton State University