Network Engineer Data Center

Uday Kiran Reddy Loka

Mail: ***********@*****.***

Contact: 203-***-**** LinkedIn

SUMMARY

Cisco Certified Network Engineer with 3 years of experience in routing, switching, and data center environments. Expertise in configuring, deploying, and maintaining enterprise network infrastructures using Cisco Catalyst and Nexus platforms. Skilled in Layer 2 and Layer 3 networking, including switching protocols (STP, EtherChannel, VDC, VPC, FHRP, LLDP, CDP, SPAN, LACP) and routing protocols (EIGRP, BGP, OSPF, VRF, PBR, IS-IS, redistribution, route-maps). Experienced in IOS upgrades, network deployment, and troubleshooting to ensure high availability and optimized performance. Strong problem-solving skills and ability to manage complex network environments in data center and enterprise settings.

SKILLS

Protocols: RIP, RIP V2, EIGRP, OSPF, IS-IS, IGRP, HSRP, VRRP, GLBP, LACP, PAGP, DNS, SMTP, SNMP, FTP, TFTP, LPD/TDP, WLAN, WEP, POP3 LADP.

LAN Technologies Workgroup: Domain, HSRP, DHCP, Static, VLAN, STP, VTP, Ether Channel, Trunks.

WAN Technologies Leased Line: Frame Relay, ISDN, PPP, HDLC, ATM, SONET, And Metro Ethernet.

Monitoring Tools: Wireshark, Nmap, Nessus, OpManager, PRTG Packet Sniffer, Juniper NSM, Junos Space, Riverbed, NetScout. GTMVOIT

Servers: Domain servers, DNS servers, WINS servers, Mail servers, Proxy Servers, Print Servers, Application servers, FTP servers, NTP.

Operating Systems: Windows NT 4.0 (Desktop/Server), Windows Server, Windows XP/7, LINUX, Solaris, Red Hat, Active Directory, UNIX.

Security / Firewalls: Cisco ASA Firewalls, IPSEC & SSL VPNs, IPS/IDS, DMZ Setup, Cisco NAC, ACL, IOS Firewall features, Checkpoint.

WORK EXPERIENCE

Role: Network Engineer Client: AT&T Jan 2025 - Present

Installed and configured Amazon's Inspector. Created targets and templates and scheduled assessment runs for all EC2 instances in the AWS account. Modify the pilot ISE environment for production scaling and performance.

Provide ISE deployment services for the migration of users from Cisco NAC to the Cisco ISE platform for the following locations.

Used the ISE Endpoint Analysis Tool (ISEEAT) to analyse data and design new ISE Profiling Policies.

Performed operational Moves/Adds/Changes in Integrated Services Engine (ISE) 2.3, including but not limited to network devices, Identity Groups, Local Hosts, Local Users, Administrator Policies, etc.

Performed evaluation and analysis of the environment for NSX deployment, including NSX Manager, Distributed Firewall, and Distributed Logical Router.

Configured and tested Verizon ARC BA850 Cradle Point as the turnkey networking solution for 4G/LTE failover.

Addressed technical issues and questions regarding Cisco ISE, including troubleshooting, feature changes, and modifications.

Implementation of Cradle Point with 3G/4G LTE as a Backup Solution for Clients' WAN. Connections and using Enterprise Cloud Manager for Monitoring. Personal involvement in Integration, Installation, and Commissioning.

Test 7750 for bandwidth, packet loss, Jitter, and latency using network diagnostic tools, QSCOPE, before the site is integrated to LTE. Implementation, Testing & Commissioning for LAN, WAN, and WLAN systems based on Cisco and Fortinet.

Configuration and Troubleshooting of Cisco Routers and Switches like 2960,3560,3650,3850,4331, and Cisco WLAN Controllers like 2500, 8540 with AP like AIR-CAP17021-E-k9 and Fortinet device like 1000D

Role: Network Engineer Client: Marcellus Infotech Private Limited May 2022 – June 2023

Configured Juniper SRX series firewalls for policy management and Juniper SSL VPNs.

Extensively managed Network ACLs, EC2, and Security Groups in migrating traditional on-premises infrastructure to AWS cloud services, which now hosts 20+ AWS services. Created monitors, alarms, and notifications for EC2 hosts using CloudWatch.

Configured AWS Identity Access Management (IAM) groups and users for improved login authentication.

Utilized Cloud Watch service to monitor the QA/on-demand instances, S3 metrics, and configure alarms for performance environments during load testing.

Configuration of VLANs on Cisco switches 3850 and 3650 and troubleshooting IP addressing issues, updating IOS images.

Implemented traffic filters using Standard and Extended access lists, Distribute-Lists, and route maps.

Installed and configured VPNs for the clients (site-to-site) and installed high availability Big IP F5 LTM and GTM load balancers to provide uninterrupted service to customers. Gained strong experience and knowledge in investigating incidents related to firewalls and VPNs.

Manage installations, configuration, and administration of Cisco equipment in the IT architecture of the organization.

Gained advanced knowledge on multiple security technologies: Anti-virus, malware, Firewalls, VPN, proxies, vulnerability, DLP.

Education:

Master’s Degree- University of Bridgeport, Connecticut

Bachelor’s Degree- Gitam University, India

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