Martin Hernandez
Corona,CA
Summary
Experienced professional skilled in designing, implementing, and managing complex network infrastructures. Strong emphasis on collaboration and adaptability to ensure reliable network performance and security amid changing requirements. Proficient in network configuration, troubleshooting, and optimization, consistently driving impactful results in dynamic environments. Recognized for problem-solving aptitude and effective communication within multidisciplinary teams.
Overview
15
15
years of professional experience
1
1
Certificate
Work History
Network Infrastructure Engineer
Peraton
07.2020 - Current
- Serve as key MSP supporting City of Irvine's network infrastructure, including City buildings, Orange County Great Park, city parks, SRO networks in high schools, Irvine Police Department, and Irvine City Hall.
- Provide network design, support, and troubleshooting for critical sites, ensuring seamless connectivity and high availability.
- Collaborate with ISPs (COX, AT&T, Lumen) to troubleshoot City network outages, perform infrastructure upgrades, and deploy new buildings, including circuit upgrades.
- Led citywide projects to replace Brocade switches with Cisco C9300 and C9500, implementing scalable and reliable solutions.
- Upgrade infrastructure, including wire management for network racks, new SM fiber connections, and SFP-LR replacements.
- Develop and implement configuration templates for City buildings, supporting single and stacked (up to 8) Cisco C9300 switches, with IOS upgrades and Visio diagram documentation.
- Configure SVIs, EtherChannels, and patch panel documentation to optimize network performance and reliability.
- Collaborate with Palo Alto firewall team to enhance security measures and manage access control.
- Oversee CAT6 Ethernet data drop installations at key facilities, including Irvine City Hall and Police Department, coordinating with vendors for efficient project completion.
- Configure and manage Cisco IP Phones using AT&T Tuki portal and maintain city-wide Extreme Networks access points.
- Deploy, configure, and maintain Cradlepoint E300-5G routers, including OS upgrades and user administration.
- Onboard new UCI buildings, configuring Cisco C9300 switch stacks to integrate with City Hall Core and Internet, ensuring reliable connectivity.
System Administrator
Robert Half Technology
12.2019 - 06.2020
- Provided system administration support for 11 locations across California.
- Install and activate WAN and internet circuits during site visits.
- Execute assessments for both new and ongoing office locations.
- Configured and installed Dell SonicWall firewalls to enhance site security.
- Implemented APC UPS for better power reliability and increased operational continuity.
- Enabled access to corporate network via SD-WAN through IPsec Tunnel VPN.
- Troubleshoot firewall connectivity issues with vendor support.
- Managed Cloudberry online backups for physical and virtual servers.
- Managed VMware ESXi Server administration.
- Delivered customer support for network-related issues.
- Configured and implemented 3CX IP phone solutions.
- Managed acquisition and setup of phone numbers through SIP provider.
- Integrated Avaya with 3CX by routing calls to the 3CX helpdesk Round Robin Group.
- Upgraded network infrastructure at remote Think Together locations by installing racks, servers, firewalls, and security cameras.
- Deliver network infrastructure improvement suggestions to IT Manager.
Network Field Engineer
Nippon Telegraph and Telephone
12.2009 - 06.2019
- On-site support provided for Riverside University Health System (RUHS) network infrastructure for over 10 years.
- Managed network architecture, design, and engineering across multiple geographical regions.
- Configured and maintained Cisco routers & switches, high availability systems, wireless technology, Cat6 & Fiber cabling.
- Established network standards emphasizing platform, hardware, and software.
- Maintains accurate details of network configurations, cabling layouts, and equipment records.
- Identified opportunities to enhance service delivery methods and procedures.
- Complied with Service Level Agreements and internal processes for incident management.
- Founded a testing lab to evaluate devices before rollout.
- Managed site-to-site VPNs, access control lists (ACLs), and access modifications.
- Set up and resolved issues with layer 2/3 switches, port channels, ISR 4000, C3850, C3750, and C2960.
- Executed configuration changes on routers, switches & firewalls in collaboration with Systems Engineering/DevOps teams.
- Collaborated with principal engineers and vendor teams to monitor issues, bug fixes, software releases, and product features improvements.
Education
Master of Science - Information Technology Project Management
Kaplan University
Davenport, IA02-2011
Bachelor of Science - IT Network Management
Westwood College
Upland, CA05-2008
Associate of Science - Network Engineering
Westwood College
Upland, CA06-2006
Skills
- Network troubleshooting
- Customer support
- IP addressing
- Wireless networking
- Routing protocols
- Network security
- VoIP systems
- Network design
- Disaster recovery
- Switching technologies
- Network problem solving
- Network configuration
Languages
English
Native or Bilingual
Spanish
Professional Working
Timeline
Network Infrastructure Engineer
Peraton
07.2020 - Current
System Administrator
Robert Half Technology
12.2019 - 06.2020
Network Field Engineer
Nippon Telegraph and Telephone
12.2009 - 06.2019
- CCNP Training - July / 2025
- A+, CompTIA - 2003 COMP0001001199718
- ITIL v3 Foundation Level- 2009 032EFFB833
- SonicWall Training - 2021
Master of Science - Information Technology Project Management
Kaplan University
Bachelor of Science - IT Network Management
Westwood College
Associate of Science - Network Engineering
Westwood College
Certification
- CCNP Training - July / 2025
- A+, CompTIA - 2003 COMP0001001199718
- ITIL v3 Foundation Level- 2009 032EFFB833
- SonicWall Training - 2021
Similar Profiles
Cedric HillCedric Hill
Cyber Threat Intelligence Analyst at PeratonCyber Threat Intelligence Analyst at Peraton
Martin HernandezMartin Hernandez
Network Infrastructure Engineer at PeratonNetwork Infrastructure Engineer at Peraton
Mitchell NyersMitchell Nyers
Senior Software Engineer at PeratonSenior Software Engineer at Peraton