SUMMARY

• Senior Network Engineer with over 6 years of experience
• Demonstrated abilities in enterprise wide network design, administration and network integration
• 6 yrs of exp on Industry leading Network appliances including Cisco Routers and Switches as well as Juniper and HP.
• Unsurpassed customer service, dedicated, positive, team - oriented attitude with proven leadership and success in highly visible roles for various sized project implementations.
• Strong Routing and Switching skill with Layer 2 & 3 advanced networking skills

TECHNICAL SKILLS

LAN Technologies: VLAN, 802.1q, Inter-vlan routing, STP, RSTP, PVST, HSRP, GLBP.

WAN Technologies: Frame Relay, ISDN, PPP, ATM, MPLS, Wan Accelerator exposure to DS1, DS3, OC3, OC12, OC48, OC192, T1 /T3, 10G.

WLAN Technologies: Autonomous AP’s, Lightweight AP’s, WLC, WDS, WLSE, Standards - 802.11a, 802.11b, 802.11G.

Hardware / Software: Cisco routers (7200, 3800, 3600, 2800, 2600, 1800 series), & Cisco Catalyst 6500, 4500, 4900, 3750, 3500, 2900, series Switches, ASA/PIX Firewalls 5510/5520/5550 , Checkpoint NGX R65/R70 on both IP series & Nokia IPSO appliances, Juniper M40, M320 & T640 service provider routers. BIG IP F5 LTM appliances. IOS & IOS-XR.

Network Security: NAT/PAT, Firewall Design, IPSec/SSL/AnyConnect VPN Configuration, Firewall Load Balancing, Check Point, IDS/IPS, RADIUS, TACACS+, and Digital Signatures.

Routing Protocols: EIGRP, OSPF, BGP, MPLS-VPNs, RIP & IGRP

Infrastructure Services: DHCP, DNS, SMTP, POP3, FTP, TFTP, IIS

Network Management: SNMP, Netcool, Cisco Works LMS, HP Open View NNM, MRTG 2.13, Ethereal Sniffer & Wire shark.

PROFESSIONAL EXPERIENCE

Confidential, IL

Sr. Network Engineer

Responsibilities:

• Implement, manage, and support global network of 4,000+ devices consisting of Cisco 2600/2800/7200/ ASR1000 Routers and Cisco 2900/3700/6500 Switches.
• Worked on MPLS, BGP, OSPF and multicast enabled network consisting of Cisco 12000 series GSR routers, 7600 & 2800 ISR G2 routers
• Provide last point of escalation to high care network incidents and provide immediate break-fix remediation such as disaster recovery re-configuration.
• Enforce network security to DMZ & external Market Data vendors via Cisco PIX 515 and ASA 5500 series firewall rules and NAT.
• Diagnose and resolve application and network issues through Wire Shark packet capture ensuring end-to-end IP connectivity.
• Work with Load Balancing team to build connectivity to production and disaster recovery servers through F5 Big IP LTM load balancers.
• Configuration of BGP using attributes, route-map, prefix-list etc. configuring BGP features such as load sharing, Route Reflectors, BGP metrics such as MED, AS Path, Local Preference and Communities.
• Break-fix routing issues and implement best practices of OSPF and BGP routing protocols.
• Configuration of 7609, 7606 with OSPF and catalyst 6513, 4500 switches with VLANS & Trunking. Configured HSRP and VLAN Trunking 802.1Q, VLAN Routing using MSFC on Catalyst 6500 switches
• Conduct extensive root cause analysis to quickly alleviate technical problems. Network documentation creation for all deployed solutions across network environment.
• Consistently complete projects ahead of schedule, facilitating quality customer satisfaction.
• Proven track record of solving QOS and BGP network issues in a timely and cost efficient manner while maintaining client service level agreement.
• Collaborated extensively with various telecommunications firms including AT&T, Verizon, Telstra, AllStream, and IPC; quickly resolved technical issues, specifically related to T1, T3, OCx, ATM, Frame-Relay, and Metro Ethernet circuits.

Confidential

Network Engineer

Responsibilities:

• Provided staff augmentation support of a multi-campus enterprise using Cisco equipment including several 6509s with FWSMs, 3750 Stackwise switches, ASA firewalls, WAE/ACNS/WAAS, ACS and NAC.
• Support WAN connectivity using Verizon-based MPLS multi-campus infrastructure.
• Involved in FWSM/ASA firewall implementations and security management for corporate datacenter and remote locations.
• Provided detailed network analysis, investigation and documentation services, including written site information and detailed physical and logical Visio network drawings.
• Installed/managed Intermediate/main distribution frame (MDF/IDF) components, edge switches/routers Cisco 3750/3750G PoE/3845/Foundry 2402 for VLAN management, Trunking 802.1Q/EIGRP routing to main frame. Managed Core Cisco 6509/7206 vxr
• Configured/managed Windows server 2003/2008 Active Directory/group policies/terminal services/DHCP services/server disk management/periodic server based maintenance
• Performed on-call rotation schedule over SNMP network monitoring tool interface as well as on site duties.
• Vlan design and implementation, Spanning Tree Implementation and support using Rapid PVST to avoid loops in the network. 802.1q Trunking and port channels creation.

Confidential

Network Engineer

Responsibilities:

• Team member of Configuration of Cisco routers and switches. Coordinated efforts with Engineer’s to ensure all network devices conformed to defined network standards
• Configure and certify Cisco 7204vxr routers and Cisco 6509 switch.
• Create and test Cisco router and switching operations using OSPF routing protocol, PIX Firewalls, and MPLS switching for stable VPNs using WAN backbone
• Redesign of Internet connectivity infrastructure for meeting bandwidth requirements
• Installed and configured Cisco PIX 515E firewalls with IPSEC VPN tunneling on site to site. Upgrading & maintaining latest PIX OS & ASDM images.
• Involved in Big-IP F5 load balancing for internet traffic across web servers in round-robin fashion using web based configuration utility.
• Configured VPN’s (FWSM, VPN Concentrator, Check Point Firewall) and connected Sub cons with point-to-point VPN tunnels and restricting the access to specific application Servers with Access Controls.
• This involved negotiating with ISPs, switching from T3 to stm-1/OC3 leased lines and configuring/replacing existing Cisco 7200 series routers with Cisco 7606 routers
• Optimized performance of the WAN network consisting of Cisco 4500/6500 switches. Design and implement new WAN architecture scalable for VOIP and can support QoS using MPLS
• Configuring and Managing IP Multicast and PIM Rendezvous points