•Demonstrated detailed knowledge and skills needed for operating and maintaining infrastructure devices, to include Cisco, HP, and Dell routers and switches.•Managed, configured, and maintained VLANs, switch virtual interfaces (SVIs), layer 2 and 3 interfaces, routing protocols (such as OSPF, EIGRP, and BGP), and SNMPv3 between router/switches and SolarWinds.•Managed, configured, and maintained access control lists (ACL) along with Cisco Identity Services Engine (ISE) to control network traffic and management access. Also, troubleshot AAA on network devices and created and troubleshot GRE over IPSec Tunnels between them.•Abled to respond and resolve incidents and outages utilizing the EITSM Remedy Ticketing System, as well as using network monitoring tools such as SolarWinds and Wireshark to troubleshoot issues as they arose in a large enterprise environment.•Communicated and troubleshot network issues with customers utilizing common desktop tools such as Microsoft Teams, Outlook, and phone calls.•Utilized Microsoft Visio to create and update network topologies.•Applied DISA Security Technical Implementation Guides’ (STIG) requirements associated with network routers and switches.•Administered and maintained infrastructure devices to include routers, switches, load balancers, and wireless local area network (WLAN) devices.•Established standard rule sets by providing technical analysis, performance optimization, network utilization analysis and overall management of all network infrastructure.•Identified potential threats and managing resolution of security violations by applying security measures to infrastructure devices, responding to and resolving incident tickets and outages, and performing network improvement and clean-up.•Monitored and employed hardware and software tools to enhance network security, ensure the confidentiality, integrity and availability of IT resources, and accomplish defensive cyberspace operations and information protection.

• Experience with routers and switches in an enterprise (greater than 3000 users) network environment.• Ability to install, configure, optimize and troubleshoot enterprise level router and switched networks. This includes design, IOS upgrades and verification of network connectivity at remote sites across the wide area network (WAN).• Mitigation of security threats.• Knowledge of wireless networking and Voice.• Management of Cisco 9k, 4500, 3750, Nexus 9k switches, Cisco ASR & ISR routers, Cisco ASA, Cisco Secure Access Server (ACS), Cisco Identity Services Engine (ISE)• Various layer 2 and 3 LAN technologies such as Spanning-tree, VLAN tagging.• HSRP, VPC, Ether-Channel/Port-channel, Port-security, 802,1X, inter-VLAN routing, OSPF/BGP routing protocols, SNMP, NTP, static routing, ACLs, etc.• Experience with F5 load-balancers, SolarWinds Orion Platform using NPM, NTA, NCM services.• Experience in network design, DISA STIG and an understanding with network boundary perimeter security working with network firewalls (Palo Alto FWs)

• Managed SDWAN services for multiple customers with Fortinet and VELO-cloud devices such as firewalls, switches, and APs. Added configurations and changes per customer requests in these devices such as new routes, port activations, NAT, PATS, whitelisting URLs, creating site to site and DU VPN tunnels according to their corresponding licensing. Also, for other add-on services like UTM and QoS for bandwidth priorities. • Managed Remedy and mostly SalesForce-ServiceCloud to work cases that would trigger by our alarm system, LEC providers, and customers. These cases/tickets were handled via ticketing system, phone calls, and email.• Experience in data/voice/facilities with knowledge of MPLS (QOS, NNI, OSPF, BGP, LDP) and VOIP protocols (QoS, Hosted PBX like PoE switches/VLS, and Softphone) over T1, DSL, and Ethernet (Metro E, Ether loop), Wi-max (fNuvox, legacy IA, legacy D&E), and 3G/4G wireless backup services. • Worked with some voice technologies including, but not be limited to 5E, DMS, Sonus, Broadworks, Meta, and OfficeSuite. • Experience working with local exchange carrier facilities in analyzing circuit designs, and equipment configuration including equipment vendors such as CPE, DACS, MUX and other aggregation devices.• Access PE router devices for diagnostics and troubleshooting in circuit designs. These devices include Cisco IOS, Juniper, and Nokia. On the CPE site devices such as Adtran, Cisco, Fortinet, Meraki and Fortinet switches, and wireless Cradlepoint. The administration of these devices were via CLI in different bastion servers, and via GUI in their respective portal platforms. • Managed CATO devices with SASE technology on different customers for MSP services.• Served in the Rearguard team supporting our Vanguard team with complex cases and escalations in a MSP like environment

• Monitor all the elements in network facilities and able to find the root cause of network failures for analysis and troubleshooting including switch/circuit and trunk outages, failures, degradation and isolation.• Assisted and supported other employees in the Network Operations Center as initial fault isolation support for Technicians and external customers from other tier departments via phone calls, or email.• Opened, updated, and closed trouble tickets as required to track progress of trouble resolution in a timely and efficient manner.• Assisted with network configuration/reconfiguration from the PE to CPE (Circuits/transports), and assigned public IP addresses to test and turn ups on new installations including pushing scripts on ADTRAN APIs for remote management in a cloud system.• Configure, operate, install, manage, and maintain network equipment and software. Set up different switches and routers configuration including VLANs, Trunks, Spanning tree, and port security. Also, routing protocols such as OSPF, BGP, and management of WAN technologies such as MPLS, PPP, HDLC, SDWAN.• Maintain an inventory of all network hardware and maintained documentation of daily operations and logs.• Monitored network traffic and status through SNMP and ICMP applications, and operation of the LAN, WAN, WLAN and VPN for correct functionality.• Set IPSEC Tunnels DMVPN/NHRP in Router devices such as Nokia Sar-8 and Cisco ASR.• Assisted Lodging and Institution customers (dealers and distributors) in setting up and configuring their network facilities and creating VPN tunnels and access to their Meraki router and different video devices (DRE and COM3000) through the Meraki Dashboard. Also handled these requests through Salesforce.• Troubleshoot SONET/DWDM in circuit/transport facilities such as LECS, ILECS, and IXCS regarding provisioning, maintenance, and technical support.

• Completed hands-on fixes at the desktop and network level, including installation and upgrading software, installing new hardware and configuring systems and applications in workstations and servers.• Navigated the management of Active Directory by administrating domains, OU, groups, and users.• Solid understanding and reviews of computer networking services and protocols with System Administrators.• Handled ticketing application and recognized priorities and work orders in a timely manner through Remedy ticketing system.• Imaged and configured over 400+ new PC’s for student and faculty classroom use across three campuses.• Performed rewiring of IDF room patch panels for multiple classroom configurations.