Covington, LA 70435 • (985) 789-5659 • patrick.mowry@gmail.com
Distinguished Enterprise Infrastructure and Solutions Architect with over two decades of experience designing, implementing, and optimizing large-scale global networks and unified communications systems. Proven track record of spearheading network migrations,, deploying Cisco collaboration ecosystems, and designing resilient data center and SDWan architectures for public and private sectors. Lead at developing custom automation tooling and mentoring high-performing engineering teams to deliver high-availability, compliant infrastructure.
Collaboration & Voice:
Cisco Unified Communications Manager (CUCM), Cisco Expressway / MRA, Unified Contact Center Express (UCCX), VoIP (H.323, SIP), Quality of Service (QoS).
Routing & Switching:
OSPF, BGP, MPLS, Cisco VSS, VPC, Catalyst/Nexus Switches, Full stack Meraki, Cradlepoint LTE and SDWan.
Security & Wireless:
Certificate-based and AD network authentication via Cisco ISE, Cisco WLC and Meraki, Cisco FMC/FTD. Nmap and Nessus scans for rule validation.
Automation & Systems:
Python, Bash, Expect, C, Linux (Ubuntu/Mint), Proxmox, Docker, Splunk Enterprise Security.
Global
Data Systems Lafayette,
LA • March 2005 – Present
Systems Integrator IV
Design and deployed Full stack Meraki network and SDWan infrastructures for customers with complex needs.
Design and deploy Network security systems with cisco ISE and FTD systems for both public facing and internal segmentation and user authentication at port level.
Architected and deployed enterprise-class Cisco Voice over IP (VoIP) and multi-vendor video conferencing solutions across complex public and private sector environments.
Successfully upgraded data and voice networks for highly complex organizations, supporting multi-site topologies spanning thousands of concurrent users.
Redesigned call center networks using custom scripting and Cisco UCCX; engineered high-availability call routing for seamless agent failover between regional data centers.
Deployed Cisco VSS and vPC core technologies for Tier-1 clients and implemented secure, certificate-based Wireless LAN solutions.
Engineered robust End-to-End Quality of Service (QoS) frameworks for large-scale enterprise environments, including the Department of Transportation and Development (DOTD) and Blue Cross Blue Shield.
Served as the final technical escalation point and provided strategic mentorship to a team of systems and network engineers.
DHL
Phoenix,
AZ • July 2002 – March 2005
Network Architecture Consultant
Migrated DHL's global core backbone network from a meshed ATM PVC infrastructure to POS leased lines with MPLS, upgrading backbone speeds to OC3/OC48 capacities.
Scaled the global network across 220 countries and territories; segmented a massive global OSPF process into 3 distinct regional processes interconnected via BGP.
Designed and deployed Cisco H.323-based VoIP networks for international toll by-pass alongside large-scale CUCM deployments for major data centers and strategic corporate sites.
Designed and implemented secure, certificate-based Wireless LAN security (EAP-TLS) utilizing Cisco access points integrated with commercial and open-source backend identity services.
Led the architectural redesign of several in-country networks, notably scaling the US infrastructure across 245 sites.
ProNet
Solutions Phoenix,
AZ • March 2002 – May 2002
Senior Network Engineer
Outsourced to Qwest Communications as the Lead Engineer for the State of Arizona's "Students First" project, managing infrastructure deployment across multiple school districts.
Configured and validated advanced enterprise services, including secure VPN access, data encryption standards, and Voice over IP implementations.
Provide a Customer Support Advocate role to the districts for trouble ticket resolution within Qwest and 3rd party vendors.
Fujitsu
Business Communication Systems Phoenix,
AZ • July 1999 – November 2001
Senior Network Engineer
Actively participated in the functional design specification, engineering, and testing phases of Fujitsu’s NT server-based IP-PBX system.
Designed and deployed Voice over IP networks utilizing Cisco AVVID architectures, NetSpeak gatekeepers, and Cisco 7200/3600/2600 platform endpoints.
Designed and installed data/voice over wireless networks using Cisco AVVID and Aironet products, Ericsson combined switch / VoIP gateway, Symbol Technologies Spectrum 24 wireless Access Points, and Symbol Technologies NetVision wireless telephones.
Global
Data Systems Lafayette,
LA • May 1994 – July 1999
Senior Network Engineer
Provided classroom based training services for employees, customers and 3rd party companies on network design, configuration, security and maintenance applications.
Design and installed 300 site Frame Relay network with redundancy and backup links.
Design and installed Large Campus LAN with over 2300 switched Ethernet ports.
Design and installed Ethernet to Token Ring bridged networks for government agencies.
Design and installed converged SNA and BISYNC networks for Financial and retail firms using Cisco STUN,BSTUN, SDLLC and other DLSW services.
Built and managed a robust Network Operations Center (NOC) providing remote monitoring and secure customer isolation for client networks.
Developed custom integrations and operational tooling for network management platforms (HP OpenView, CiscoWorks) using C, Expect, and Bourne Shell scripts.
Industry Certifications:
Cisco Certified Internetwork Expert (CCIE #3587) – Enterprise Infrastructure
Cisco Certified Networking Professional (CCNP) – Collaboration
Cisco Certified Specialist:
Collaboration Applications Implementation
Collaboration Call Control On-Premises
Collaboration Hybrid and Cloud
Unified Fabric
Historical Certifications: CCNP – Voice Access Specialist, Certified Novell Engineer (CNE), Microsoft Certified Professional (MCP), NetSpeak Application & Infrastructure, Fujitsu F9600 PBX Architecture
Education:
Electrical Engineering (Computer Option) – University of Southwestern Louisiana (incomplete, 3rd year)
Available upon request.