SUMMARY:

• Over 8 years’ experience in LAN/WAN technologies, Routing/Switching protocols and Wireless Technologies including TCP/IP protocol suite and multi - protocol routing in Cisco environment.
• Excellent troubleshooting experience of intricate network and systems issues with RIPv1/v2, OSPF, EIGRP and BGP.
• Experience installing, configuring and troubleshooting Catalyst (2900, 3500, 3700 and 6500 Series),) Switches, and Routers (2800, 3600, 4400 Series) and Wireless AP’s (1260, 3600) using CLI and GUI.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, and RSTP. Implementation of HSRP, VRRP, GLBP for Default Gateway Redundancy.
• Familiar with IPv6, SNMP v3.
• Network security including NAT/PAT, ACL.
• Configuring ASA firewalls 5510 and 5505 ASA (5505) Firewall, ASA (5516-X) Firewall ASA (5525) Firewall, Fortinet 1500D.
• Working knowledge of network monitoring/management tools like Wireshark, Cisco Prime, Net Flow, PRTG, Solar Winds.
• Experience in diverse IT disciplines, including networking, technical support, programming, operating systems and system administration.
• Working Knowledge in preparing Technical Documentation and presentations using Microsoft VISIO/Office.
• Strong written and verbal communication skills, self-motivated, self-managed, result oriented, practical, always looking to learn and contribute.

TECHNICAL SKILLS:

Cisco Routers: 2800, 3600, 4400, 3700,3800, 3900, 7600.2921, 1921

Cisco Switches: 2950,2960,3500, 3700, 5000, 6500, Nexus 7706, Nexus

5548, Nexus 3064, 3650, 3750, 3850

Cisco Access Point: 1231G,26021I, 1142

Networking: TCP/IP, UDP, ARP,ICMP, LAN, WAN, DHCP, DNS, SNMP,TFTP

Other Protocols: HSRP, GLBP, VRRP, QoS, IPv4, IPv6, IP SLA

Security: ACL, NAT/PAT, ASA (5505) Firewall, ASA (5516-X)FirewallASA (5525-X) Firewall, Fortinet 1500D.

Routing: EIGRP, OSPF, BGP

Switching: VLAN, VTP, STP/RSTP

Operating Systems: MS Windows XP/Vista/Windows 7, Linux (Ubuntu), CISCO IOS.

Applications: Wireshark, Cisco Prime, Solar Winds, MS Office and MS Visio Wireless Controller 5508

PROFESSIONAL EXPERIENCE:

Senior Network Engineer

Confidential, Chicago,IL

• Leading project to implement SD-Wan solution (Viptela)
• Performance monitoring of various applications and web servers to maintain quality of service and network stability.
• Maintained core switches, creating VLAN’s and configuring VTP.
• Designed IP Addressing schemes, VLAN tables and Switchport assignments, Trunking and Ether-channel implementation.
• Gained hands on experience with VRF, VLSM, STP, VTP, VLAN Trunking.
• Installed and set up Cisco routers and switches according to deployment plans.
• Applied access lists and NAT configurations based on implementation guidelines.
• Managed and developed network projects designed to strengthen network continuity and deploy security elements in an attempt to meet and exceed contract requirements, including system analysis and troubleshooting.
• Involved in network upgrades and implementation.
• Leading project for transaction and refreshing Aviation Network Infrastructure from Cisco 4507R Core Switch to Cisco Nexus 7706 and adding 4500x Switches as Aggregation Layer. Configure L2/L3 VALNs and IP scheme, L3 Routing Protocol (OSPF), Nexus 2K Fabric Extender, Nexus 7K, Nexus 5k,VDC and VPC, VSS on 4500x Aggregation Switch
• Diagnosed problems through troubleshooting skills, logic, research, and isolation steps.
• Involved in network upgrades and implementation.
• Leading project for transaction and refreshing Aviation Network Infrastructure from Cisco 4507R Core Switch to Cisco Nexus 7706 and adding 4500x Switches as Aggregation Layer. Configure L2/L3 VALNs and IP scheme, L3 Routing Protocol (OSPF), Nexus 2K Fabric Extender, Nexus 7K, Nexus 5k,VDC and VPC, VSS on 4500x Aggregation Switch

Network Engineer

Confidential, Rolling Meadows, IL

Responsibilities:

• Diagnosed problems through troubleshooting skills, logic, research, and isolation steps.
• Performed routine maintenance of network hardware and software of LAN/WAN (NAT, DHCP, SNMP)
• Configured ACL to allow only authorized users to access the servers.
• Implemented VLANs, DHCP server, DNS configuration, NAT/PAT in a small network environment.
• Configured Routing Protocol: single-area OSPF, EIGRPs.
• Performed technical support, troubleshooting and maintenance of network equipment, installed and upgraded software and hardware equipment.
• Worked with engineering team to resolve tickets and troubleshoot L3/L2 problems efficiently.
• Preformed IOS upgrades and reconfigured devices afterwards.
• Updated documentation as necessary.
• Mapped, Network Diagrams and physical identification in MS Visio.
• Worked with Radius and TACACS
• Troubleshoot connectivity issues involving VLAN’s, EIGRP, QoS etc.
• Support, monitor and manage the IP network.

Network Engineer

Confidential, Downers Grove, IL

Responsibilities:

• Hands on experience on staging, installing and troubleshooting Cisco Catalyst equipment: 2900, 3500, 6500 Series Switches, AIR-AP1200/AIR-AP1142N/AIR-CAP3602ac Wireless Access Points and Cisco Aironet 1300 Series
• Team Lead working on LAN Improvement Project for Chicago Public Schools
• Overseeing other IT professional’s onsite, analyzing project progress and reporting necessary documents via SharePoint.
• Acting as Field Supervisor performing quality control with CPS Project Management on finished schools.
• Hands on experience on staging, installing and troubleshooting Cisco Catalyst equipment: 2900, 3500, 6500 Series Switches, AIR-AP1200/AIR-AP1142N/AIR-CAP3602ac Wireless Access Points and Cisco Aironet 1300 Series Outdoor Access Poin>
• Managing over 5K LWAPs on CPS enterprise network.
• Troubleshooting RF onsite by utilizing in SSIDer analyzer and WLC toolsets.
• Performing IOS upgrades to Cisco equipment using TFTP or Xmodem.
• Assessing MDF, IDF, CBox infrastructure as well as local servers before cutover.
• Extensive experience working on Cisco Catalyst 6500 series switches(6505, 6509, 6513).
• Implementing new VLAN Carving into infrastructure on Catalyst 6500 Core Switches and analyzing its compatibility.
• Supporting various server systems including Mitel IP phones and RapidEye IP video security systems.
• Troubleshooting network protocols logically using OSI Model.
• Responsible for communication between school management and project management.
• Assigning IP addressing scheme to all local servers and network printers.
• Installation, reconfiguration and troubleshooting NIC's onsite.
• Performing IOS upgrades to Cisco equipment using TFTP
• Assessing MDF, IDF, CBox infrastructure as well as local servers before cutover.
• Troubleshooting network protocols logically using OSI Model.
• Assigning IP addressing scheme to all local servers and network printers.
• Installation, reconfiguration and troubleshooting NIC's onsite.
• Computer assembling and maintenance.
• Troubleshooting hardware and software problems.
• Installing and configuring the peripherals, components and drivers
• Installing software and applications to user standards
• Deep knowledge of printer and cartage refilling.
• Solid understanding of all phases of SMPS and UPS
• Proven expertise in supporting and troubleshooting hardware, software and networking issues
• Familiar with hardware tools like servers, printers, VoIP, networking and telecommunications devices
• Configuring and troubleshooting desktops, laptops
• Excellent troubleshooting skills in complex software and hardware problems
• Installed Hard disks, Floppy drives, CD Drives, Sound Blaster cards, CPU, Memory, Power supply unit, Network card, Video graphics card, Hard disk controller card on PC systems
• Wireless survey (passive and active).

Network Engineer

Confidential, Carol Stream, IL

Responsibilities:

• Installed and configured Cisco 2600, 2800, 3600, 3800 routers and 2960, 3700, 6500 switches.
• Maintained and managed networks running EIGRP and BGP routing protocols.
• Configured route redistribution between OSPF and EIGRP in a multi-area OSPF network.
• Daily monitoring of network traffic using sniffers and access logs to troubleshoot and identify network issues.
• Performed Layer 2 administration including VLANs, inter-VLAN routing, trunking, port aggregation
• Route redistribution and route update manipulation using route-maps, distribute lists and AD manipulation and link negotiation.
• Used network monitoring tools to ensure network connectivity and protocol analysis tools to assess and pinpoint networking issues causing service disruption.
• Worked with engineering team to resolve tickets and troubleshoot L3/L2 problems efficiently.
• Preformed IOS upgrades and reconfigured devices afterwards.
• Updated documentation as necessary.
• Mapped, Network Diagrams and physical identification in MS Visio.
• Worked with Radius and TACACS
• Support, monitor and manage the IP network.
• Troubleshoot connectivity issues involving VLAN’s, EIGRP, QoS etc.
• Performance monitoring of various applications and web servers to maintain quality of service and network stability.
• Maintained core switches, creating VLAN’s and configuring VTP.
• Designed IP Addressing schemes, VLAN tables and Switchport assignments, Trunking and Ether-channel implementation.
• Gained hands on experience with VRF, VLSM, STP, VTP, VLAN Trunking.
• Installed and set up Cisco routers and switches according to deployment plans.
• Applied access lists and NAT configurations based on implementation guidelines.
• Managed and developed network projects designed to strengthen network continuity and deploy security elements in an attempt to meet and exceed contract requirements, including system analysis and troubleshooting.
• Change management, monitoring network performance with network tools.
• IP Distribution for existing devices and new devices as they were added.
• Preformed maintenance on equipment as necessary, performing device upgrades, modification of configurations, password changes and diagnostic testing.
• Worked with vendors and Engineering team to test new hardware and procedures.
• Prepared and maintained documentation using MS Visio.