Prem D Email & Phone Number

San Antonio, Tx, Us

Baltimore, Maryland, Us

• Regular upgrade and maintenance of Infrastructure, Installing, configuring, and maintaining Cisco Switches (2960, 3500 ,7600, 3750, 3850 series, 6500 series) Cisco Routers (4800, ASR 9K, 800), Juniper Routers and Firewalls, Nexus 7k,5k & 2k, f5 BIG IP, Palo Alto Firewalls, Bluecoat Proxy and Riverbed Steelhead appliances.• Working in F5, Cisco ACE 4710 Load balancers. Migration Experience from ACE to F5 and NetScaler to F5. Worked on critical applications on Layer 4 and layer 7 load balancing. Experience with Virtual server, Pool, Node, Profiles – TCP, http, https, ftp, fastl4, Persistence – Source IP, SSL, Cookie, SNAT, iRules, iAPP, SSL offloading.• Designed expertise for the SD-WAN (Versa & Viptela), SD-LAN and WAN optimization technologies for efficient delivery of the application data across LAN and WAN.• Designing and providing support of Routers, Switches, Security Solutions, VPNs, L4-7 Load Balancers, SD-WAN and Network Management Solutions across LAN/WAN.• Migrated of the company’s 200 sites from legacy hub and spoke legacy WAN network to SDWAN in order to support a star topology with virtual firewalls at the remote sites• Design and implement Cisco ACI in datacenters, create a strategy that allows use of containers, cloud orchestration tools for end users and developers.• Migrated data from Datacenters and on-premises to Cloud using AWS Import/Export Snowball service.• Major focus on Configuration, SCM, Build/Release Management, Infrastructure as a code (IAC) and as Azure DevOps operations Production and cross platform environments.

Bentonville, Arkansas, Us

• Worked on Automation tool called Autopilot an internal tool used for code upgrades and configuring of new devices at different data centers.• Provided second/third level technical support for ACI (Application Centric Infrastructure), APIC technologies• Responsible for the secure development lifecycle for Cisco's Nexus line of products, including Application Centric Infrastructure (ACI), Application Policy Infrastructure Controller (APIC) - Cisco's Software Defined Network (SDN)• Configured Remotely Cisco routers, switches and Meraki access points.• Troubleshooting Cisco routers, APs, Switches, Fortinet Devices and Meraki appliances• Deploying Application Centric Infrastructure, Spine-Leaf, APIC and VXLAN• Managed wireless access controllers and troubleshooting Meraki Access points such as MR 66, MR 74, MR 84.• Experience in RF transmissions & Antenna behavior, and familiar with 802.11 e protocols• Administered network operating infrastructure (broadband and MPLS) and managed services (virtual servers, firewall, data storage, and cloud-based).• Worked on Multiple AWS instances, set the security groups, Elastic Load Balancer and AMIs, Auto scaling to design cost effective, fault tolerant and highly available systems.• Migration and implementation of Palo Alto Next-Generation Firewall seriesPA-500, PA-3060, PA-5060, PA-7050, PA-7080 from Cisco PIX and ASA.

Us

• Configuring rules and Maintaining Palo Alto Firewalls & Analysis of firewall logs using Panorama. • Successfully installed Palo Alto PA-3000/PA-5000 firewalls to protect Data Center and provided L3 support for routers/switches/firewalls.• Configured and maintained IPSEC and SSL VPNs on Palo Alto Firewalls and also implemented Zone Based Firewall and Security Rules on the Palo Alto Firewall.• Exposure to wildfire feature of Palo Alto.• Routers: Cisco (IOS and IOS-XR), Juniper MX Series routers and Nokia (Alcatel 7750, 7950). • Administered Cisco AMP endpoint security infrastructure and monitor endpoints for threats.• Exposure to design and implementation experience primarily on Cisco WSA proxy.• Configuration and Maintenance of Cisco ASA 5580-20, ASA 5540, ASA 5520, ASA 5510 series firewalls.• Configure Syslog server in the network for capturing and logs from firewalls.• Provided tier 3 support for CheckPoint and Cisco ASA Firewalls to support customers, Backup and restore of checkpoint and Cisco ASA Firewall policies.

Bangalore, Karnataka, In

• Worked on Cisco routers 7200, 3700 and Cisco switches 4900, 2900.• Key contributions include troubleshooting of complex LAN/WAN infrastructure that include.• Configured firewall logging, DMZs, related security policies and monitoring.• Creating private VLANs & preventing VLAN hopping attacks and mitigating spoofing with snooping & IP source guard.• Installed and configured Cisco PIX 535 series firewall and configured remote access IPSEC VPN on Cisco PIX Firewall.• Enabled STP enhancements to speed up the network convergence that include Port-fast, Uplink-fast and backbone-fast.• Other responsibilities included documentation and change control.• Responsible for Configuring SITE-TO-SITE VPN on Cisco routers between headquarters and branch locations.

Bachelor'S Degree

Master'S Degree