David Mcmahon Email & Phone Number

Maumelle, Ar, Us

Maumelle, Ar, Us

Conway, Arkansas, United States

• Architected and deployed core infrastructure changes in Conway and Dallas Data Centers, focusing on Cisco Nexus deployments with EIGRP and BGP.• Consolidated Happy State Bank and Centennial Bank Dallas data centers into a single cage, reducing overhead costs significantly.• Transitioned branch sites to Meraki MX with SD-WAN/MPLS circuits from ISR2901/ISR4331 with T1 circuits.

• Leading a team of over 20 professionals including 7 Engineers through advanced implementation andtroubleshooting of Cisco Catalyst equipment, SuperMicro server hardware, and various Linux and Windowsstacks and software services that are the backbone of Amazon’s Fulfillment Technologies.• Developing troubleshooting techniques and documenting research findings to improve future deployments andprovide Engineers around the world with information on systems in use at Amazon.• Acting IT Manager for LIT2, DLR2 and HLI1. Leading the team and organizing recovery effort for severalfires/floods, critical infrastructure issues. Orchestrating the various support teams to minimize downtime fromuser changes, hardware failure and natural disasters.• Working with specific networking and robotics teams to diagnose and identify globally-impacting Cisco bugsand ACL/QOS deployment issues at 30+ Fulfillment Fabric Network (FFN) Amazon sites.• Working at and building multiple Amazon Fulfillment Centers and Delivery Stations, deploying Juniper (N19)network stacks as well as Cisco ASR’s, WLC’s, Distribution (layer-3) routing and access switches.• Training and mentoring Technicians and Engineers within the Little Rock node as well as in other Nodes inMemphis, Oklahoma City, Tulsa, and St. Louis. Directly contributing to several promotions, hirings, and career-growth movements for my team and peers.

Little Rock, Arkansas, United States

Little Rock, Arkansas Area

• Supporting the NLR Water and Electrical Utility Services and Police Department with various end-usertroubleshooting and requests.• Working closely with the Enterprise Services team for network deployments and equipment changes impactinggovernment employees

Conway, Ar

• Planning, installation, and maintenance of all of the enterprise equipment across client base, primarilyWatchguard firewalls, Cisco and Unifi networking equipment, and various Dell PowerEdge servers.• Working with electronic medical record and telemedicine vendors to ensure that clients are always connectedand able to treat patients, even in critical times during the pandemic.• Curating and managing help desk tickets through ConnectWise for a client base of around 80 medical practicesand small government offices throughout the state of Arkansas.

Conway, Arkansas

• Managed, supported and redesigned systems infrastructure, bringing the company into a modern Windows Server environment.• Designed new network infrastructure, implementing VLANs and a proper VPN tunnel between locations. • Supported machine automation for production, implementing a way to gather metrics and improve production times.

• Managed the western half of the United States for DirecTV territory initially, designing and supporting dealers in implementing large MDU and hotel systems. • Worked with AT&T Engineers to lead the Out of Region project. Architeching, configuring and traveling to sites to install equipment for AT&T 10Gbps internet handoffs at MDU's across the country.