• Designed and implemented SD-WAN solutions across multiple sites using Cisco Viptela, optimizing network performance and reducing operational costs.• Configured and managed SD-WAN policies and templates on vManage/vSmart controllers, ensuring efficient traffic routing and quality of service (QoS) across the network.• Utilized Cisco DNA Center (DNAC) for centralized network management, automation, and orchestration, simplifying network provisioning and monitoring tasks.• Designed and deployed network policies and configurations via DNAC, enforcing consistent security and compliance standards across the enterprise network.• Established secure and high-performance connectivity between on-premises data centers and public cloud environments using technologies such as AWS Direct Connect, and Azure ExpressRoute.• Implemented cloud-native services and solutions, including serverless computing, container orchestration (e.g., Kubernetes), and managed database services.• Orchestrated workload migrations and hybrid cloud deployments, optimizing workload placement based on cost, performance, and compliance considerations.• Integrated cloud-based networking services like AWS VPC peering, and Azure Virtual Network Peering, to facilitate communication between cloud resources across different cloud providers.• Implemented and managed cloud security controls, including Identity and Access Management (IAM), network security groups, firewall rules, encryption, and compliance frameworks (e.g., GDPR, HIPAA) across multi-cloud environments.• Configured and optimized BGP, OSPF, and EIGRP routing protocols to enhance network performance, utilizing attributes such as Local Preference, MED, and AS-PATH.• Deployed and configured Cisco Firepower NGFWs, migrating from Cisco ASA platforms to enhance network security and threat prevention capabilities.• Experienced in Automation tools like Terraform, Ansible and Python for configuration management and configuration task automation.

• Experienced in configuring Cisco ASR 1006-X, ASR 1001-HX, ISR 4400 series routers, Cisco 9000, 7000, 5000, 2000, 3650, 3850 and 2850 using Python scripting.• Used BGP for verifying various traffic policies and influencing outgoing, incoming traf-fic using BGP attributes such as Local Pref., AS Path, Med, Weights.• Configured and resolved various OSPF multi-area environments, used OSPF as IGP with route filtering and route-redistribution, implemented Stubs/Totally stub areas, implement-ed features like route summarization and SPF throttling.• Experienced in Ethernet based multipoint to multipoint communication over Internet Protocol(IP),MPLS and DMVPN.• Experienced configuring security policies across Microsoft Stores through Cisco Security Manger.• Helped the network team to install new switches and routers and configure the IOS-XE per the requirement which included VLAN, OSPF, Sub netting, EIGRP, IGP, BGP, VTP, STP, wireless access points.• Integrated Duo Mobile Authentication Application to approve access to the network devices with Cisco Identity Service Engine (ISE) and Zscaler cloud.• Experienced in configuring open DNS using Cisco Umbrella platform.• Supported Cisco wireless LAN controller (WLAN) within various Microsoft stores.• Used Cisco Prime to troubleshoot various network issues. • Experienced in F5 BIG-IP Application Security Manager (ASM) to protect from threats and vulnerabilities.• Experienced in managing the AKS container service to simply the deployment and management of Kubernetes cluster for failover, scaling, service discovery and security within Azure public cloud.• Configured CloudWatch alarm rules for operational and performance and performance metrics for AWS resources and applications.• Managing and tracking the projects, tasks, and issues on Jira – Agile project management tool.• Experienced in Palo Alto, NetBox, Network Sniffers like Wireshark to intercept network traffic.

• Working on the SD-WAN implementations at all Greenfield and Brownfield sites by deploying in Riverbed architecture.• Managed SD-WAN software to control the connectivity, management and services between data centers, remote branches and cloud instances.• Experienced with Teraform, Ansible, Python and CloudFormation automation tools in AWS, Azure and GCP.• Experienced in Configuring various ACI components, such as Tenants, Application Pro-files, Endpoint groups, Bridge Domains, Virtual Routing Forwarding (VRF), External Routed Networks, Fabric Policies, Access Policies and so on.• Hands on experience with Cisco Tetration tool to analyze the traffic flows of the whole environment and convert the infrastructure from network centric to Application centric environment.• Experienced in applying Routing protocols like OSPF, EIGRP, BGP, switching proto-cols, authentication protocol like tacacs+, DHCP, VPN, ACL, Syslog, SNMP traps con-figuration on different routers and switches with in customer network such as Internet Edge router- Cisco ASR1006-X, Cisco ASR1002-HX, Cisco ASR1001-HX, Internet Edge switch Cisco Nexus 9K- C93108TC-Fx, Cisco ASR1002-X, Cisco 7304, N7K- C7010, N5K-C5020P-BF, Cisco WS-C3750G-48TS, and, Cisco WS-C3650-48FS, and troubleshoot any network issue.• Configured the Application Centric Infrastructure (ACI) fabric, including Cisco spine N9k -C9504 switches and leaf switches like N9k - C93180YC-EX and C93108TC-EX.• Experienced in NetBrain tool to automate troubleshooting tasks• Experienced working with F5 LTM, GTM and ASM. Managed and operated ASM for the web applications, securing and protecting from the vulnerabilities was key and it ensured the best practices standards and compliance with HIPAA and PCI data.• Configure Virtual Servers, Nodes, and load balancing Pools in F5 Big-IP LTM. • Experienced with network management tools like Cisco Tetration, NetBox, Wireshark, PRTG, NetScout, CACTI, ONMS and SNMP.

• Contributed to a Data Center design and migration project, overseeing 18 sites across the U.S. and Canada. Facilitated the transition from older Cisco switches (2960, 3750, 4507, 4510, 6509, 6513) and routers (1841, 1921, 2811, 2821, 3925) to newer switch models (3650, 4500-X, Aruba 3810, 5400R, 6400R) and Cisco routers (4331, 4451).• Implemented VSS and VSL on 4500-X switches, upgraded IOS-XE to the latest versions to 03.06.06.E and 03.07.05E on 3650s to standardized topology configurations.• Upgraded aging hardware, implemented redundancy, standardized design, and Quality-of-Service (QoS) policies, established 10G trunks for scalability, enhancing operational efficiency across all client sites.• Deployed Aruba 802.11ac wireless access points and mobility controllers, enhancing Wi-Fi performance across client sites.• Played a key role in ACI migration, integrating existing network technologies like STP, vPC, and FabricPath into newly developed ACI PODs for application migration.• Developed, tested, and integrated Python and JSON scripts for Software Defined Network Solutions, specifically ACI environments.• Assisted customers in setting up on-ramp connections to AWS cloud via Megaport and established BGP peering through Direct Connect Gateway.• Configured and optimized OSPF environments with route filtering, redistribution, and OSPF features like stub areas and route summarization.• Utilized BGP attributes such as Local Pref, AS Path, MED, and weights to enforce traffic policies and influence traffic behavior.• Implemented Virtual Private LAN service (VPLS) for Ethernet-based multipoint communication over IP, MPLS, and DMVPN.• Provided hands-on support in installing and configuring switches, routers, and wireless access points, including VLANs, OSPF, EIGRP, BGP, VTP, STP.• Deployed SD-WAN policies on existing network infrastructure to enhance policy management and security.• Configured SD-WAN Viptela devices and created templates on vManage

• Part of Data Center design and build team. As part of data center refresh project, I per-formed migration from Cat 6513 Switches with Sup 720 and WS-X6148A-45AF Line cards of version Cisco IOS Release 12.2(33) SXI2 to low latency Nexus 7009 and 7018 Switches with Nexus 7000 Supervisor 2E, N7K-F312FQ-25 F3,N7K-M206FQ-23L M2 line cards of version NX-OS Release 5.2(1), Nexus 5548UP Switch and Nexus 2232TM-E Switches.• Implemented VPC, VDC on Nexus Switches 9000 series and configured FEX• Worked with the data center planning groups, assisting with network capacity and high availability requirements.• Experienced in ACI migration, to integrate datacenter operations. This deployment em-ploys a common policy model in each datacenter.• Worked on reliability and scalability of the data center video monitoring using Cisco Call Manger version 3.3.• Worked on Cisco wide area application services (WAAS) to optimize the performance of TCP based application in WAN.• Supervised of working with Wireless network resources. Used IEEE 802.11 standards in performing tasks on Wi-Fi.• Provided Cisco Unified Contact Center Enterprise (UCCE) to provide routing, call man-agement, network to desktop computer telephony integration (CTI) and other IP re-sources.• Performed tasks related to Cisco Unified Customer Voice Portal (CVP) to detect speech with application development.• Responsible for entire LAN, DMZ and WAN maintenance and troubleshooting of the company network. Involved in the Team of Data Center Level 2 support to perform du-ties like deployment and troubleshooting of Cisco Routers, Switches, Arista hardware, Load balancer and Firewalls according to the organization requirements.• Acquired excellent troubleshooting skills on 7613 Cisco Router, which include working on ticketing system and change management system to provide, troubleshoot support.• Configured and maintained (2921, 3845, 7204, and 6509) and configured OSPF & BGP Protocols.

• Involved in complete LAN, WAN development including IP address planning, design-ing, installation, configuration, testing, maintenance etc.• Installation and Configuration of Cisco Catalyst switches 6k, 3k series and Implementa-tion of EIGRP, OSPF, and BGP routing protocols on Cisco routers.• Configuration, upgradation, and deployment of Nexus 7010, 5596 and 2248 switches.• Experienced in moving applications into an ACI – centric model.• Monitored F5 BIG-IP Access Policy Manager (APM) to secure and separate access of applications, data, network, and cloud based.• Configured LAN protocols such as STP, RSTP, VTP, VLAN, LACP, and PAGP.• Implemented Cisco layer-3 switches 3750, and 4500 on multi VLAN with Inter- VLAN routing, HSRP, ISL trunk and ether channel.• Implemented IPsec VPN for different corporate lines to secure communication for out-side traffic.• Provided services for managing Enterprise networks using Cisco Prime.• Experienced in Information Technology Infrastructure Library (ITIL) for providing IT in-frastructure management.• Developed Session Initiation Protocol (SIP) for signaling and controlling multimedia communication sessions and experienced with Cisco Call Manager (CUCM).• Experienced with Checkpoint VPN rules over Cisco ASA VPN. Which filters traffic by inspecting the application layer.• Provided network support for Checkpoint VPN firewall, Palo Alto firewall and F5 LTM load balancer and DNS.• Experienced in Global Site Selector (GSS) for Global Server load balancing configura-tion.• Configuring and troubleshooting WAN technologies like MPLS, Frame relay and ISDN.• Worked on installation, upgrades, and maintenance of LAN/WAN, network security, and firewalls.• Managed and supported Logic Monitor to monitor firewalls, routers, switches, wireless devices, load balancers, and other network assets, Including SD-WAN and cloud-based networks.• Expertise in implementing gateway redundancy protocols like HSRP, VRRP and GLBP

• Deployed Cisco routers, switches, and managed network monitoring services.• Conducted lab testing and validation for Nexus 7K, 5K, & 2K with blade servers.• Collaborated with vendors to resolve voice/data issues across WAN, MPLS, and PSTN.• Configured and resolved OSPF issues in multi-area environments.• Implemented and configured BGP WAN routing, transitioning from OSPF.• Maintained layer 2 switching including VLANs, VTP, STP, RSTP, PVST, RPVST, EtherChannel with LACP and PAGP, and troubleshooted inter-VLAN routing.• Troubleshot complex LAN/WAN infrastructure using EIGRP, OSPF, and BGP.• Managed commissioning and decommissioning of MPLS circuits for field offices & POPs.• Implemented security policies using ACLs, Firewalls, IPsec, and VPN.• Installed, configured, and administered Windows Servers, Active Directory, DNS, DHCP, Linux OS in LAN/WAN environments.• Migrated IPSEC VPN tunnels from pre-shared key to Certificate-based authentication.• Deployed and managed Cisco IP phones and ATA devices across corporate and remote sites.• Utilized Network Sniffers for network traffic interception.• Conducted risk assessments to ensure compliance with regulations for new customers.• Managed GIT source control tool for software development.• Implemented Windows Active Directory, VMware, and NAS Administration.• Led IOS and CAT OS upgrade procedures, including pre/post checks for customer production upgrades.• Maintained comprehensive network documentation, including network matrix, backup configurations, and diagrams.