Tyler Herold
Colorado Springs,CO
Summary
Accomplished IT professional with ten years of expertise spanning network engineering, information assurance, network security, and cyber security compliance. Proficient in installing, troubleshooting, and monitoring CISCO, General Dynamics, VMware NSX, and Windows operating systems. Recognized for precision in project management, quality assurance, and process optimization, with a keen ability to address complex issues and deploy successful problem-solving strategies. Demonstrated capacity to excel in dynamic settings, ensuring meticulous attention to detail and maintaining high standards of accuracy and efficiency.
Overview
10
10
years of professional experience
1
1
Certification
Work History
Senior Network Engineer
ASRC Federal Inc
Colorado Springs, CO
02.2024 - Current
- Configured, monitored, and maintained routers, switches, firewalls, and load balancers using VMware NSX virtualization.
- Managed firewall rules based upon business requirements while ensuring maximum uptime availability.
- Provided specifications and detailed documentation using VISIO for network architecture.
- Provided information for hardware and software selection and tools for the most efficient solution to meet business needs, including present and future capacity requirements.
- Prepared the analysis of short/long term capacity needs for switching, routing and network security.
- Conducted network architecture design, feasibility, and cost studies as well as internal studies of network performance and traffic analysis.
Network Team Lead
Kingfisher Systems, Inc.
Camp Lejeune, NC
03.2022 - 02.2024
- Managed, resolved, and completed over 3000 customer support requests submitted through Enterprise Remedy ITSM suite.
- Maintained network security, documentation and monitored network posture of over 3000 devices through microfocus network node manager (NNMi) and network operations management.
- Configured and installed over 100 CISCO and Enterasys devices in NIPR and SIPR environments.
- Configured, monitored and managed firewall rules for CISCO firepower to optimize network security and efficiency.
- Articulated complex ideas with clarity and precision, fostering effective collaboration and communication among cross-functional teams.
- Monitored network access and compliance of over 3000 devices using Forescout security automation.
- Resolved any network issues using meticulous attention to detail to ensure efficient and constant network operations.
- Removed and properly decommissioned devices that are no longer needed.
- Maintained documentation of devices being utilized on the network and devices that are available to be added to the network.
- Ensured IOS's were within standards and updated as needed.
- Ensured all assets were within DoD RMF compliance requirements.
Systems Administrator
Irresistible Smiles Cosmetics and Family Dentistry
Chula Vista, CA
11.2021 - 03.2022
- Responsible for the configuration and installation of 10 Windows devices.
- Maintained network security posture utilizing tenable nessus vulnerability scanner.
- Oversaw and guaranteed consistent availability of resources from the SQL database.
- Ensured IOS's were within standards and upgraded systems as needed.
- Proficiently utilized both oral and written communication to liaise with team members, external suppliers, and vendors, ensuring clarity and mutual understanding among all stakeholders.
- Troubleshot and resolved all issues with Windows devices, demonstrating a keen attention to detail and a commitment to ensuring optimal functionality.
- Recognized recurring issues, investigated to find deficiencies, and promptly took action to minimize the chance of recurrence, and provided recommendations for remedial action to the CEO.
Network Administrator
United States Marine Corps
Camp Pendleton, CA
05.2019 - 11.2021
- Configured, installed, and maintained KG-175d and KG-250xs encryption devices.
- Served as the network chief and was responsible for the supervision, management, and leadership for 20 employees.
- Responsible for the creation and maintenance of NIPR/SIPR network operations centers in a deployed environment.
- Collaborated closely with end users, employing effective communication and critical thinking skills to address and resolve issues related to both hardware and software.
- Responsible for installment and deployment of mobile network on the move (NOTM) for isolated network access to remote sites.
- Successfully addressed network and system issues to guarantee seamless operations and maximize uptime efficiency.
- Maintained Information Assurance and conducted network monitoring, verifying all systems met security regulations.
- Delivered high level support, and maintenance to over 100 CISCO and windows systems, including hardware, software, and applications to maximize efficiency and reduce.
- Created and updated detailed network diagrams using VISIO.
- Supervised and conducted installments, configurations, and upgrades of over 100 CISCO and Windows devices.
Identified system upgrades and service updates that would improve the network and maintain excellent cyber security. - Maintained documentation on configuration changes and systems maintenance in the form of reports, and technical diagrams for review and evaluation.
- Participated in on-call shifts, including holidays and weekends in case of system or network-related emergencies and outages.
- Responsible for over $200,000 in systems hardware.
Cyber Network Operator
United States Marine Corps
Cherry Point, NC
03.2014 - 05.2019
- Served as the network chief and was responsible for the supervision, management, and leadership for 65 employees.
- Generated and maintained comprehensive network diagrams for both NIPR and SIPR networks with meticulous attention to detail.
- Configured, installed, and maintained KG-175d and KG-250xs encryption devices.
- Oversaw systems configurations, ensuring compliance with security requirements.
- Installed and maintained desktops, printers, routers, and switches.
- Handled network issues after hours and on weekends to alleviate downtime and maintain maximum network efficiency.
- Responsible for the creation and maintenance of NIPR/SIPR network operations centers in a deployed environment.
- Monitored system upgrades including patch management, installing service packs, and kept systems within information security standards.
- Managed systems account access, roles, and permissions for over 500 employees.
- Determined issues that were causing performance problems and implemented solutions to alleviate system degradation.
- Performed help desk operations such as software troubleshooting, system configuration modifications in a quick and proficient matter to provide constant quality services to customers and clients, assessing their needs and resolving all issues and systems problems they had.
- Participated in on-call shifts, including holidays and weekends in case of system or network-related emergencies.
- Maintained documentation on configurations and maintenance in the form of reports, and technical diagrams.
- Responsible for over $300,000 in systems hardware.
- Administered and maintained Active Directory services to ensure effective user management and secure network operations.
Education
Bachelor of Science - Cybersecurity & Information Assurance
Western Governors University
12.2025
Sergeant School - Leadership And Management
United States Marine Corps
Camp Lejeune 06.2018
Skills
- Network Security
- Network Engineering
- Team Leadership
- Project Management
- Attention to Detail
- Firewall Management
- Systems Troubleshooting
- Technical Writing and Communication
- Information Assurance
- Information Security
Certification
- Linux Essentials, 03/2024
- A+, 07/2023
- Project+, 05/2023
- ITIL v4 Foundations, 03/2023
- CCNA, 07/2022
- Security+, 12/2021
- SharePoint Advanced Site Manager (Webpage Management), 04/2015
- SharePoint Basic Site Owner (Webpage Management), 10/2014
Timeline
Senior Network Engineer
ASRC Federal Inc
02.2024 - Current
Network Team Lead
Kingfisher Systems, Inc.
03.2022 - 02.2024
Systems Administrator
Irresistible Smiles Cosmetics and Family Dentistry
11.2021 - 03.2022
Network Administrator
United States Marine Corps
05.2019 - 11.2021
Cyber Network Operator
United States Marine Corps
03.2014 - 05.2019
Bachelor of Science - Cybersecurity & Information Assurance
Western Governors University
Sergeant School - Leadership And Management
United States Marine Corps
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