Network Engineer

• Jun 2023 - Present

Lead Network Engineer

• Apr 2020 - Jun 2023

+ Deployed RSA for MFA to comply with Cyber-Security Insurance requirements. + Implemented RSA MFA for Cisco ISE, PAN Firewalls, vCenter, Linux/Windows Servers and elevated admin access on all Windows clients. + Integrated ISE Tacacs+ with RSA MFA for UCS Manager and CLI access to IOS/NXOS switches. + Segregated EOL servers/software to reduce the risk of vulnerability exploitation. + Migrated RA-VPN from ASAs to Meraki MXs reducing cost and increasing stability/availability. + Deployed MFA for all RA-VPN users with Meraki and Azure SAML integration. + Migrated claims offices from ATT Switched EoD to ATT DIA circuits, with LTE backup, using Meraki MX68Cs. + Migrated enterprise VOIP from Cisco (CUCM/UCCX/Jabber) to Zoom: 45 Sites, 3 Call Centers, 4 Cisco TelePrescence devices and 500+ users. + Implemented/Configured connectivity to iLand DRaaS with PAN VM firewall for edge security and site-to-site replication as well as a Meraki MX85 for connectivity to all remote offices. + Migrated disaster recovery from a nearby Co-Lo facility to iLand DRaaS. + Implemented Splunk Enterprise distributed deployment: 3 index cluster, 1 search-head and 2 heavy forwarders for syslog ingestion and forwarding. + Deployed Cisco ISE 3.1 multi-node cluster. Migrated existing infrastructure from ISE 2.2 to ISE 3.1 cluster. + Deployed Azure App-Proxy serving multiple on-prem apps eliminating RA-VPN requirement for most users. + Deployed PAN Cortex Data Lake and Cortex XDR for endpoint vulnerability detection and remediation. + Deployed Thycotic Privileged Access Manager to reduce and restrict the use of administrative privileges on accounts. + Implemented NetFlow analytics with ELK stack and ElastiFlow NetFlow collector. + Implemented Prometheus and Grafana for network monitoring dashboards and metric pages for management reporting. + Resolved lingering routing issues, implemented by third-party vendor services, between PAN firewalls and core switches. Show less

Senior Network Engineer

• Oct 2018 - Apr 2020

+ Lead technical resource for the networking department.+ Investigated escalated issues from all departments within IT when needed.+ Mentored junior network administrators.+ Designed/implemented L3 OOB management network. Migrated devices off L2 management VLAN in the VPC domain.+ Designed/implemented highspeed OOB monitoring fabric for the datacenter using Cisco Nexus Data Broker.+ Migrated public DNS for all domains off legacy WAN appliances. Improved DNS resolution from 100ms+ to less than 15ms.+ Engineered modular network design to separate campus and datacenter routing & switching.+ Designed/implemented centralized routed core eliminating L2/STP between all network segments.+ Implemented multi-VRF design, routed through firewalls, to segment user, datacenter, and DMZ traffic.+ Designed/implemented multicast for broadcast notifications campus wide. Utilized static mroutes between VRFs routing around Palo Alto firewalls.+ Planned/implemented the migration of DC1, DC2 and user cores to new routed core.+ Designed/implemented strategy to use BGP between the routed core and firewalls. Eliminated STP and LACP issues, reducing fail-over times from 5+ minutes to sub-second.+ Designed/implemented the replacement of EoL Nexus 7K/2K switches with Nexus 9K switches in less than 6 months.+ Designed/implemented 10G replication over SD-WAN/MPLS to replace existing L2 link between OKC and DFW datacenters.+ Implemented Prometheus and Grafana for network monitoring dashboards and metric pages for management reporting. Show less

Network Team Lead

• Jun 2017 - Oct 2018

+ Supervised team of three network administrators and served as lead technical resource.+ Managed on-call rotation for the network team and served as point of contact for troubleshooting critical issues.+ Planned/managed 3M dollar yearly budget encompassing campus and datacenter environments, team training and future projects.+ Managed/maintained inventory of network devices and assets.+ Designed/implemented network design to facilitate future projects and goals of all teams within IT as well as other business units.+ Managed WAN aggregation appliances functioning as DNS master for multiple public zones.+ Managed all aspects of corporate public facing domains, including purchasing, DNS configuration and management.+ Implemented and managed F5 BigIP load-balancers.+ Implemented Cisco DCNM to manage device configurations and backups.+ Designed routing strategy utilizing EIGRP to move the network away from static routing.+ Designed/implemented Cisco ISE deployment spanning multiple datacenters utilizing load-balancing for PSN clustering and high-availability.+ Designed network architecture for new buildings utilizing L3-Access, dynamic routing, and NAC enforcement.+ Implemented multi-tier architecture for new building extending L3 routing to the access layer.+ Created network templates and implementation guides for migrating campus switching from collapsed-core L2 design to multi-tier L3-Access design.+ Implemented phased migration plan for installation and configuration of new L3 switches in existing buildings and migrated all endpoints to new L3-Access design.+ Implemented ECMP routing throughout the entire network using multiple 100G links for all datacenter switch connections and multiple 40G links for all campus switch connections.+ Designed/implemented new 100G datacenter design consisting of approximately 40 switches, with the capacity to scale 4x. Show less

Senior Network Engineer

• Sep 2013 - Apr 2015

+ Provide Tier II support for customers and applications spanning 48 remote DISA networks sites, worldwide, assuring that all sites had connectivity on the enterprise WAN and LANs. + Resolved complex problems requiring in-depth evaluation of various factors and thorough troubleshooting skills. + Mentored and assisted junior level network technicians during troubleshooting. + Managed and maintained network consisting of over four thousand network devices. + Under general direction, managed the purchase, installation, and support of network devices. + Worked on complex problems requiring in-depth analysis of situation advanced troubleshooting skills. + Planned and implemented large-scale network projects. Provide mentoring and training to lower level network engineers. + Daily activities heavily focused on the management and implementation of network changes on Cisco Nexus (7K, 5K, 2K) switches, Juniper routers, Cisco routers, Juniper Firewalls, and ASA Firewalls. + Migrated existing applications off of outdated network infrastructure into new Nexus environment. + Provide complex troubleshooting of routing for business applications and implemented firewall/router changes to resolve issues. Show less

Network Design Engineer IV

• Aug 2012 - Sep 2013

+ Installed communication racks including equipment being placed to meet customer needs. + Rack-mounted servers, switches, routers, firewalls, and power supplies. + Removal of communications racks and devices on a daily basis to support the refresh of technology in the data center. + Worked with the network engineers and installations teams to place new hardware, infrastructure and provide support in all phases of the transition to updated network technology. + Worked with network engineers during scheduled after-hours outages to troubleshoot network issues and minimize downtime. + Coordinated scheduled outages to perform network upgrades and power placement for new devices. + Resolved interoperability problems to obtain operations across all platforms including e-mail, file transfer, multimedia, teleconferencing and the like. + Utilize ITSM to document incidents, perform in-depth troubleshooting, issue resolution of complex incidents, and provide timely notification to leadership of critical incidents. + Provide change/move support for about 500 employees between multiple buildings. + Ensured that network connections were placed in correct ports with correct VLAN assignments. + Moved or placed cable to support the movement and addition of network printers. + Interfaced with customers daily to resolve issues and provide excellent customer service. Show less

Utility Locate Technician

• Sep 2010 - Aug 2012

+ Located all One Call tickets for assigned area to ensure timely and accurate location of underground utilities protecting customer facilities as well as the safety of contractors. + Managed a 5.5 square mile area daily, averaging 30 locates a day. + Investigated contractor damages of customer facilities. + Located all One Call tickets for assigned area to ensure timely and accurate location of underground utilities protecting customer facilities as well as the safety of contractors. + Managed a 5.5 square mile area daily, averaging 30 locates a day. + Investigated contractor damages of customer facilities.

Delivery Driver

• Mar 2009 - Sep 2010

+ Ensured that customers received excellent customer service. + Pulled, organized, loaded and delivered customer orders in a timely and friendly manner. + Ensured that customers received excellent customer service. + Pulled, organized, loaded and delivered customer orders in a timely and friendly manner.

Power Generation Tech

• Aug 2008 - Mar 2009

+ Ensured delivery of reliable power distribution on Sather Air Base Iraq. + Directly involved in the setup of Power Grids, Operation and all phases of Maintenance for 87 Generators in support of U.S., Coalition Forces and Civilian Contractors. + Executed numerous emergent repairs to Power Generation Equipment including Electronic Controls and Engine (Mechanical) Drive Components. + Performed database entry for power generation equipment ensuring maintenance schedules were performed I.A.W. U.S. Army and Quality Control Specifications. + Responsible for a 5-man maintenance team performing generator preventive maintenance. + Established a training program instilling work safe Safety Practices reducing personnel injuries. Show less

Outside Plant Technician

• Jul 2007 - Jul 2008

+ Performed splicing of cables supporting the installation, rearrangement, and repair of outside plant facilities. + Worked in all facilities including aerial, underground, and buried + Located and cleared troubles in outside plant facilities. + Read and interpreted engineering plans and interacted with the Engineering Group. + Working with hot molten solder and torches. + Climbed poles and ladders, as well as, operated hydraulic aerial lifts (buckets). + Performed splicing of cables supporting the installation, rearrangement, and repair of outside plant facilities. + Worked in all facilities including aerial, underground, and buried + Located and cleared troubles in outside plant facilities. + Read and interpreted engineering plans and interacted with the Engineering Group. + Working with hot molten solder and torches. + Climbed poles and ladders, as well as, operated hydraulic aerial lifts (buckets).

Sales Associate

• Mar 2007 - Jul 2007

+ Responsible for maintaining and stocking merchandise in the Lumber and Building Materials department, providing friendly customer service to individuals in my department, gathering and pulling orders for the Contractor desk, assisting other associates when needed to operate forklifts/reach trucks, filling in as cashier when needed and maintaining the cleanliness and safety of my department. + Responsible for maintaining and stocking merchandise in the Lumber and Building Materials department, providing friendly customer service to individuals in my department, gathering and pulling orders for the Contractor desk, assisting other associates when needed to operate forklifts/reach trucks, filling in as cashier when needed and maintaining the cleanliness and safety of my department.

Data Migration Tech

• Feb 2007 - Mar 2007

+ Backed up and migrated end user data from outdated personal computer systems to new systems. + Installed new systems at the user's terminal. + Introduced the client to the new systems features, software and provided technical assistance to the customer. + Backed up and migrated end user data from outdated personal computer systems to new systems. + Installed new systems at the user's terminal. + Introduced the client to the new systems features, software and provided technical assistance to the customer.

Telecom Cable Installer

• Nov 2006 - Feb 2007

+ Accessed areas to string lines and install terminal boxes, auxiliary equipment, and appliances, using bucket trucks, or by climbing poles and ladders or entering tunnels, trenches, or crawl spaces. + Inspected and tested lines and cables, recording and analyzing test results, to assess transmission characteristics and locate faults and malfunctions. + Laid underground cable directly in trenches, or string it through conduits running through trenches. + Pulled cable through ducts by hand or with winches. + String cables between structures and lines from poles, towers, or trenches and pull lines to proper tension. + Used a variety of construction equipment to complete installations, including digger derricks, trenchers, and cable plows. + Cleaned and maintained tools and test equipment. + Dug trenches for underground wires and cables. + Performed all work as necessary to conform to quality control guidelines (includes compliance with requirements outlined in applicable regulations such as: OSHA, FCC, and NEC, etc. Show less

AFATDS Specialist

• Sep 2002 - Dec 2006

+ Established, maintained and operated communications systems. + Prepared computer center for operation and shutdown. + Prepared field artillery tactical data systems for operation to include cabling, installation, and removal procedures. + Input initialization data and data base information to field artillery tactical data systems. + Maintained fire capabilities maps and charts. + Operated and performed maintenance on field artillery tactical data systems equipment, section vehicles and generators associated with field artillery tactical data systems. + Assisted field artillery tactical data systems noncommissioned officer in supervision of all fire control operations in multiple launch rocket system platoon fire direction center. + Operated field artillery tactical data systems at multiple launch rocket system battery and battalion, cannon battalion and higher echelons. + Performed computer operations including fire mission processing, fire plan schedules and data base construction. + Initiated computer center operations, including establishing control information, communications with digital subscribers and data base initialization. + Deployed to Iraq from April 2003 - March 2004 in support of Operation Iraqi Freedom. + Served as Fire Direction Specialist in support of securing various ammunition sites, as well as base security guarding entry control points, and as convoy security escorting civilians to various military bases. + Deployed to Iraq from September 2005 - August 2006 + Served as a member of an eleven-person detachment operating Mayor Cell for Camp Liberty, Baghdad. Worked as Department of Public Works, managed temporary and permanent housing, helped coordinate logistical needs for Victory Base, and served as the detachment Information Management Officer responsible for placing and maintaining the computer equipment, networks and communication equipment. Show less