Network Engineer
Resume:
SAI NITIN ALLADA
*********@*****.***
PROFESSIONAL SUMMARY:
CCNA Certified Associate, Network Engineer and Network Analyst with around 4 Years of experience in deployment and troubleshooting of routing, switching of cisco switches.
Solid understanding and experience with routing and switching of Cisco products.
Very sound knowledge of network protocols, OSI model (7-layers) and IP Protocol.
Extensive hands on experience with complex routed LAN and WAN networks, routers and switches with troubleshooting capabilities.
Experience with the support and analysis of network and topology, and high level knowledge of IP routing, switching and wireless in complex interworked environments.
Expert understanding and working experience of TCP/IP, access control lists, NAT, VPNs, firewall concepts, IPSEC, DHCP, DNS and dynamic routing protocols such as RIP V1/V2, BGP, OSPF and EIGRP.
In depth knowledge on BIG-IP F5 Load Balancer installation, configuring and troubleshooting.
Experience on configuring network security technologies such as Cisco Checkpoint firewalls, cisco switches and routers.
Strong knowledge in remote access, application security, encryption, intrusion detection and prevention.
Design and configuring of OSPF, BGP on cisco Routers.
Experience in installing, configuring, and troubleshooting of network hardware, Cisco series Routers, Cisco Catalyst, cabling systems and Cisco series switches.
Solid knowledge and Extensive experience in configuring and troubleshooting of routing protocols RIP V1/V2, EIGRP, OSPF, BGP and TCP/IP.
Extensive knowledge on F5 Load Balancing methods, monitoring types, BIG-IP profiles using SSH for connection establishment.
In depth knowledge on configuring persistence for BIG-IP Load Balancer, processing SSL traffic, SSL termination, performing NATs and SNATs along with iRule scripting on the load balancers.
TECHNICAL SKILLS:
NETWORKING: Local Area Network (LAN), Wide Area Network (WAN), OSI Model, TCP/IP protocol suite (IP, ARP, ICMP, TCP, UDP, SNMP, FTP, TFTP), MAC address table, ARP, PRI.
HARDWARE/SYSTEMS: Cisco Routers & Switches, ASA Firewalls, BIG-IP F5 Load balancers (Virtual Servers, pools, Monitors, Profiles, NATs, SNATs, Persistence, iRules), MPLS networks.
ROUTING: Sub netting, OSPF, EIGRP, BGP, RIP V1, RIP V2, Route Filtering, Redistribution, Summarization, Ether-channel, LACP, PAGP.
SWITCHING: STP, RSTP, MSTP, VTP, HSRP, VRRP, GLBP, Inter VLAN routing, Ether-channels, MPLS, LDP, SPAN, RSPAN.
SECURITY: Cisco ASA and Checkpoint Firewalls, ACL, NAT, SNAT, VPN, IPSEC, GRE, Multipoint GRE tunnels.
TOOLS: Putty, Wireshark, Matlab, Visual Studio, Cadence, Multisim, Modelsim and MS Office, iOS app development (swift coding), C, OOPS.
EDUCATION:
Master of Science in Electrical Engineering - University of Missouri-Kansas City
Bachelor of Technology in Electronics and Computer Engineering – Vijayawada
CERTIFICATIONS:
CISCO Certified Network Associate: CCNA (CISCO ID: CSCO13130603)
CISCO Certified Network Professional: In Progress
PROFESSIONAL EXPERIENCE:
CLIENT: MIDWEST INSURANCE AND HEALTH SERVICES, MO
ROLE: NETWORK ENGINEER June 2016 – Present
CUSTOMER SERVED: MIDWEST INSURANCE AND HEALTH SERVICES
Responsibilities:
Working in a project for insurance firm who are migrating from one CISCO area to another CISCO switching environment.
Day to day responsibilities include installation, configuring and troubleshooting the Cisco switches, routing protocols like BGP, EIGRP.
Retrieve the Cisco configuration from the cisco switches.
Load Balancing the traffic on the company’s servers with various load balancing methods.
Configure the Cisco switches with the configuration retrieved from the source Cisco switch configuration.
Worked on BIG-IP load balancers by installing, configuring and troubleshooting issues on the traffic at the BIG-IP module.
Implemented BIG-IP load balancing methods, monitoring the traffic, SSL termination.
Performed NATTING and SNATs on the BIG-IP, BIG-IP profiles, configuring persistence on BIG-IP and implementing iRule scripting.
Troubleshooting the Cisco switches to be in the exact VLANs and responsibilities include to connect all the cisco access points and IP to the Cisco switches.
Responsible for LAN maintenance, INTER-VLAN routing and configuring the spanning tree protocol for loop prevention.
IP allocation and maintenance for the Cisco switches.
Responsibilities include troubleshooting at the end user by travelling on-site.
Help connecting the company to the main data center and configuring it to be the default-gateway.
Responsible for configuring of MDF (main data facility) and IDF (intermediate Distribution frame) and connecting IDF to the MDF and the MDF with the data center.
Main responsibilities include troubleshooting of the LAN (local area network).
Applying access control lists to avoid the unauthorized users from certain VLANs.
Working in a project which requires over time, and scenarios of immediate attention and under no supervision. Supported shift works.
Environments: Troubleshooting, on-site, MDF, IDF, Data center VLAN, IP, Cisco, installing, configuring, Loop prevention, STP, access points, TCP/IP, BGP, EIGRP, Load Balancing, BIG-IP.
CLIENT: CERNER CORPORATION, KANSAS CITY, MO
ROLE: NETWORK ENGINEER December 2015 - June 2016
CUSTOMER SERVED: UMC HEALTH SYSTEM AND GENESIS
Project 1: CUSTOMER: UMC HEALTH SYSTEM
Responsibilities:
Worked on installation, maintenance, and troubleshooting of LAN/WAN (Frame relay, NAT, DHCP, TCP/IP).
Configured Access List (Standard, Extended, and Named) to allow users all over the company to access different applications and blocking others.
Troubleshooting of TCP/IP problems and connectivity issues in multi-protocol Ethernet environment.
Log messages using Syslog server and analyze the issues related to high CPU utilization and parameters that can degrade performance of the network.
Key contributions include troubleshooting of complex LAN/WAN infrastructure that includes routing protocols EIGRP, OSPF, and BGP.
Worked with Network Engineers in the installation and configuration of firewalls.
Environments: Frame relay, NAT, DHCP, TCP/IP, EIGRP, BGP, OSPF.
Project 2: CUSTOMER: GENESIS
Responsibilities:
Support enterprise and development network infrastructure. Support maintenance and troubleshooting of the network. Perform vulnerability scans.
Responsible for LAN and WAN maintenance and troubleshooting of the company network. Involved in performing duties like administration and deployment of Cisco Routers and Switches according to the organization requirements.
Using spanning-tree protocol for loop-detection and prevention. Implemented BPDU guard on access-layer for port fast.
Performed network administration tasks such as creation and management of VLANS, Port security, Trunking, Inter-VLAN routing, and LAN security.
Worked on Cisco based Routing and Switching environment with Rapid Spanning tree (RSTP) and using Routing Protocols such as BGP and OSPF. Hardened Cisco routers and switches.
Network protocol experience understanding IP, TCP, HTTP, Ethernet, GSM, OSPF, BGP.
Allocation & Maintenance for users and other needs throughout company.
Experience performing network management functions such as network monitoring, network performance measurement and reporting.
Worked with project managers, department heads and team members to determine project approaches, parameters and priorities.
Provided support to internal and external clients, including participation in the 24x7 on-call rotation.
Kept abreast of technical developments to ensure the organization’s ability to take advantage of industry advances.
Environments: LAN/WAN, BGP, OSPF, spanning tree protocol, BPDU, port-fast, IP, TCP, HTTP, Ethernet, SSL, GSM, OSPF and BGP.
CLIENT: COGNIZANT TECHNOLOGY SOLUTIONS, HYDERABAD, INDIA
ROLE: NETWORK ANALYST July 2014-July 2015
CUSTOMER: TARGET
Responsibilities:
Ability to collaborate with clients and other developers to effectively document the customer’s business processes and other requirements.
Ensure the stable operation of the computer network, firewalls, Cisco switches and network security.
Ensure maximum network availability, achieve peak systems performance, maintain top quality standards and meet aggressive business objectives.
Perform network engineering tasks such as implementing firewall rules, establishing VPNs with partner companies, performing AAA administration, designing and implementing access control lists, and installing software upgrades on network and security equipment.
Knowledge and ability to perform the roles of Network Engineer routing and switching.
Perform routine adds, moves and changes for network ports and VLANs.
Prepare reports and analysis of network traffic and utilization.
Assign IP addresses and DNS names per Company policies.
Monitor and troubleshoot network connectivity issues across all layers of the OSI model
Create technical specifications and detailed software design documentation based on business requirements.
Environments: Firewalls, Cisco Switches, ACLS’s, DNS.
CLIENT: PRUDENT INFO SYSTEMS, HYDERBAD, INDIA.
ROLE: NETWORK ANALYST March 2013-August 2013
Responsibilities:
Responsible for managing network & security at the Data center.
Troubleshooting end user connectivity issues through the firewalls and network.
Making sure the NAT is applied appropriately on the firewall for all the third party and DMZ traffic.
LAN/WAN level 3 support (diagnose and troubleshoot layer 1,2,3 problems).
VLAN's design and implementation, Spanning Tree Implementation and support using PVST, R-PVST and MSTP to avoid loops in the network. Trunking and port channels creation.
DNS, DHCP services configuration and support.
Deployed a Syslog server to allow proactive network monitoring.
Implemented VLANS between different departments and connected them using trunk by keeping one VLAN under server mode and rest falling under client modes.
Environments: NAT, VLANS, DNS, DHCP.
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