Network Engineer Resume
Addison, TX
SUMMARY
- Over 7 years of experience as Network Engineer in testing, troubleshooting, implementing, optimizing and maintaining enterprise data network and Service Provider systems.
- Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP and MST.
- Implementation of HSRP, VRRP for Default Gateway Redundancy
- Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
- Responsible for Juniper and Cisco ASA firewall administration across global networks.
- Experience in working with Cisco Nexus Switches and Virtual Port Channel configuration.
- Experience with load balancing on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.
- Good exposure on Analysis and Designing of Documents likeSoftwarerequirement Specifications(SRS)andspecification design documents (HLDandLLD).
- Maintains ECI’s Cloud network infrastructure (EMS)
- Experience working on Cisco Catalyst Series 3750, 4500, 4900, 6500; Nexus 2K, 5K, 7k and 9K series switches.
- Extensive work experience with Cisco Routers, Cisco Switches, Load Balancers and Firewalls.
- Experience in layer - 3 Routing with, Cisco ASR 9k, ASR1002X, 7200, 3845, 3945, 2811, 1800 series
- Expert in configuration of routing protocols and deployment of RIP, OSPF, EIGRP & BGP over Cisco Routers in Production environment.
- Cisco Catalyst series switchesASA 5500 security appliance platform
- Hands on experience in deployment of Frame-Relay, MPLS, PPP.
- Worked on MPLS-VPN designs for the migration of Frame relay to MPLS system.
- Implemented redundancy with HSRP, GLBP, Ether channel technology etc.
- Working knowledge of IDS and IPS, policy routing, private VLANs, NAT and ACLs.
- IOS upgrades on routers and switches and Installation of SDM.
- Experience with Nexus OS.
- Knowledge of implementation of Palo alto firewalls
- In-depth knowledge and hands-on experience on IP Addressing, Subnet, VLSM, and ARP, reverse and proxy ARP, Ping concepts.
- Maintaining and updating inventory of all network hardware, Management and Monitoring by use of SSH, Syslog, SNMP, NTP.
- Enabled Authentications such as WPA2, PAP/CHAP, and AAA.
- Worked on Network Monitoring tools like Cisco Network Assistant, Solar winds, HP open view, Wireshark.
- Efficient in preparing Technical Documentation using Microsoft VISIO/Office and also in preparing presentations.
- Excellent customer management/resolution, problem solving, debugging skills and capable of quickly learning, effectively analyses results and implement and delivering solutions as an individual and as part of a team.
- Self-motivated, quick learner, zealous and hardworking, can handle multiple demands and competing priorities.
- Worked as part of the Technical Support Team by involving in the documentation and training of the end-users, and in solving the network issues.
TECHNICAL SKILLS
Cisco router platforms: 2811, 3600, 3745, 3845, 7206, 7609, ASR1002X, ASR9K.
Cisco Switch platforms: 2900XL, 2950, 2960, 3560, 3750X, 4500X, 4510, 6509E.
Firewalls: Cisco PIX 501, 510, 515E, Cisco ASA 5520, 5540, Checkpoint.
WAN Technologies: FRAME RELAY, T1/E1, PPP, MPLS, leased lines, DSL modems.
LAN Technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, NAT/PAT. Implemented Cisco Secure Access Control Server (ACS) for TACACS+/Radius.
VOIP Devices: Cisco IP phones, Avaya.
IPSEC/VPN Configuration: PIX to Router, Router to Router, PIX to VPN wildcard client, Router to VPN wildcard client, PIX to PIX, fully meshed configurations.
Routing Protocols: RIP, OSPF, EIGRP, and BGP.
Switching Protocols: VTP, STP, RSTP, MSTP, VLANs, PAgP, and LACP.
Layer 3 Switching: CEF, Multi-Layer Switching, Ether Channel.
Carrier Technologies: MPLS, MPLS-VPN.
Redundancy protocols: HSRP, VRRP, GLBP.
Security Protocols: IKE, IPsec, SSL, AAA, Access-lists, prefix-lists.
PROFESSIONAL EXPERIENCE
Confidential, Addison, TX
Network Engineer
Responsibilities:
- Configured and deployment of routing protocols OSPF, EIGRP & BGP over Cisco Routers in Production environment.
- Experienced working knowledge with 1800, 2800, 2500, 2600, 2800, 3600, 3800, 3900, 7204, 7606 series Routers.
- Worked on Cisco 6509, 6513 and 4510 switches for LAN requirements that include managing VLANs, Port Security and troubleshooting LAN issues.
- Performed LAN operations and troubleshooting which involves working on VLANs, inter-VLAN routing, Trunking, STP, RSTP, port aggregation & link negotiation.
- Experience leading ITIL aligned IT operations supporting US FDA 21 CFR Part 11 and CFIA
- Implemented redundancy with HSRP, Ether channel technology (LACP, PAgP) etc.
- Worked on Cisco Firewall ASA 5500(5510/5540) Series. Performed Security operations in terms of pushing new policies and deploying new rules.
- Performing security troubleshooting in terms of checking ACLs and ACEs and traffic flow analysis using packet capture features.
- Implemented new DMZ and data isolation and also worked on ASA virtualization using ASA Device Context.
- Worked on F5 BIG-IP LTM 8900, configured profiles, provided and ensured high availability.
- Worked on F5 and CSM load balancers deploying many load balancing techniques with multiple components for efficient performance.
- Troubleshooting issues related to Layer 1/2/3 skills like switching / routing, WAN /Hardware and critical network links by coordinating with the vendor.
- Troubleshooting the Juniper SRX100 and 110 series, Juniper Net screen routers with Site-Site VPN, and firewalls for Supervalu Retail sites.
- Provides Tier 3 escalation to Client’s Support Team to diagnose and resolve issues in client’s environments; coordinates with internal resources and vendors Engages in self-directed continuous improvement and learning of EMS products
- Migration of existing IPSEC VPN tunnels from Pre-Shared key to Certificate Authority for purpose of scaling.
- Managing and providing support to various project teams with regards to the addition of new equipment such as routers, switches and firewalls to the DMZs.
- Experience in Installation and Configuration of FortiGate 5000, 3000, 900 series firewalls as well as fortiweb application firewall 100D, 400C,1000D,3000E
- Configuring BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPNnetworks
- Adding and removing checkpoint firewall policies based on the requirements of various project requirements.
- Deployed Site to Site and Client to Site VPNs utilizing Checkpoint Firewall-1/VPN-1
- Migrated previous corporate Checkpoint 4.0 Firewall-1/VPN-1 on Windows NT
- Designed and implemented DMZ for Web servers, Mail servers & FTP Servers using Cisco ASA 5500 Firewalls.
- Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability
- Troubleshoot the Network Issues onsite and remotely depending on the severity of the issues.
- Performed Break Fix support through driving to different buildings, identifying the root cause of the hardware issues with switches, routers.
- Implementing theMOPon thenetworkdevices and doing the smoke test to ensure the smooth implementation.
- Design, implementation and operational support of routing/switching protocols in complex environments including BGP, OSPF, EIGRP, Spanning Tree, 802.1q, etc.
- Configuring RIP, OSPF and Static routing on JuniperM and MX series Routers
- Configuring VLAN, Spanning tree, VSTP, SNMP on EX series switches
- Presently preparing for JNCIA examo Provides Tier 3 escalation to Client’s Support Team to diagnose and resolve issues in client’s environments; coordinates with internal resources and vendors
- Engages in self-directed continuous improvement and learning of EMS products
- Understand the JUNOS platform and worked with IOS upgrade of Juniper devices
- Strong knowledge on networking concepts like TCP/IP, Routing and Switching
- Design, Implement & troubleshooting of Juniper switches, routers and Firewalls
- Juniper: EX-2200,EX-4200, EX-4500, MX-480, M Series, SRX210, SRX240
Confidential, Raleigh NC
Network Engineer
Responsibilities:
- Involved in configuring Cisco routers and switch administration working with enterprise level Cisco Routers such as ASR1K, 7206, 3845,3725 and2800series, and Cisco catalyst series switches like 6500, 4500-X, 4510, 3750X
- Configuring, upgrading and deployment of Nexus 7010, 5596 and 2248.
- Configuring and troubleshooting of routing protocols such as OSPF and BGP for effective communication.
- Configuration of VLAN’s, access lists (ACL), troubleshooting IP addressing issues and Updating IOS images and other hardware installations
- Configuring, upgrading and verifying the NX-OS operation system.
- Primary responsibilities include performing project-based engineering, design, installation and troubleshooting of data and wireless networks
- Perform wireless surveys using AirMagnet and/or Ekahau survey tools
- Ability to perform spectrum analysis and interpret results
- Working with the engineering team to successfully implement wireless network solutions
- LAN routing and switching configuration and deployment in an enterprise environment
- Provide network engineering consulting services, including: assessment, design and implementation of data and wireless networking environments
- Assist clients through planning, design and implementation of data and wireless communications networks
- Develop comprehensive graphical and text-based design documentation and effectively manage the implementation process from design to customer acceptance
- Be able to perform packet level analysis for Wireless LAN troubleshooting and interpret the data
- Installation and design solutions including TDM and SIP access.
- Cisco Call Manager configurations including remote site MGCP gateways (ios), TDM and SIP access.
- Designing and installing new branch network systems. Resolving network issues, running test scripts and preparing network documentation.
- Experience of working on multicasting protocols.
- Worked on Extensively on Cisco Firewalls, Cisco (506E/515E/525/) & ASA 5500(5510/5540) Series
- Establishing VPN Tunnels using IPSec encryption standards and also configuring and implementing site-to-site VPN, Remote VPN.
- Worked on carrier Ethernet technology including OAM technologies such as CFM, Y.1731.
- Experience in troubleshooting VLAN, STP (Spanning tree protocol), & Switch Trunk and IP subnet issues.
- Dealt with Cisco ACE load balancer in managing the key role issues.
- Dealt with NAT configuration and troubleshooting issues related access lists and DNS/DHCP issues within the LAN network.
- Fulfill the DNS/DHCP requests by the users.
- Develop the upgrade strategy for the DNS/DHCP software’s when new version are released.
- Managing and configuring Cisco Switches and Firewalls independently.
- Coordinated with senior engineers with BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLSVPN networks.
- Implementation of F5 Load balancers.
- Working knowledge of and experience with:Microsoft Windows Server 2003/2008/2010
- Active Directory
- Exchange 2003/2007/2010
- Experience with F5 3DNS Load balancer GTM.
- Experience in Installation and Configuration of FortiGate 5000, 3000, 900 series firewalls as well as fortiweb application firewall 100D, 400C,1000D,3000E.
- Configuring BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPNnetworks
- Worked on Multicasting protocols such as ICMP and IGMP.
- Provisioning and troubleshooting Ethernet services, Gigabit networks and Connectivity issues with WANlinks
- Installing and configuring the VPN’s for the clients (site to site).
- Monitoring Network infrastructure using SNMP tools like HP Open view.
- Involved in Configuration of Access lists (ACL) for the proper network routing for the B2B network connectivity.
- Dealt with the escalation problems from Leve1, Leve2 & level 3 for routing, switching and WAN connectivity.
- Worked with customers in troubleshooting issues related to connectivity, STP, VLANs, Inter-VLAN routing, VTP, Ether channels, Layer 2/3 switching, log messages.
- Possess excellent verbal and written communication skills and experience developing and maintaining technical procedure and documentation.
Confidential
Network Engineer
Responsibilities:
- Participate in 24 x 7 incident & problem support.
- Recommended Security considerations for the Intranet data center, integrating security, providing solution design details and configuration details.
- Migration of existing IPSEC VPN tunnels from Pre-Shared key to Certificate Authority for purpose of scaling.
- Configuring switch for 802.1x port based authentication.
- Implemented QOS using queuing, policing, shaping, compression, congestion avoidance techniques.
- Designed WAN structure to prevent single point of failure in case of link failure.
- Responsible for implementing, engineering, & level 3/4 support of existing network technologies / services & integration of new network technologies / services.
- Key contributions include troubleshooting of complex LAN /WAN infrastructure that include routing protocols EIGRP, OSPF & BGP.
- In case of any issues, troubleshoot the DNS / DHCP related issues and resolve the issues.
- Fulfill the user requests regarding DNS/ DHCP within the company
- Troubleshoot the DNS / DHCP related issues.
- Configured and managed Cisco access layer routers and switches.
- Support Network Technicians as they require training& support for problem resolution including performing diagnostics, & configuring network devices.
- Maintenance and Troubleshooting of connectivity problems using Ping, Trace route.
- Planning and Implementation of Subnetting, VLSM to conserve IP addresses.
- Configured STP for loop prevention and VTP for Inter-VLAN Routing.
- Troubleshooting issues and outages on Trunks and Router interfaces extensively.
- Technical assistance for LAN/WAN management and complex customer issues.
- Performed route redistribution & manipulated route updates using distribute lists, route-maps & administrative distance.
- Creating & applying different types of access-lists for these effects to take place.
- Administered &setup Cisco PIX firewalls at multiple sites.
Confidential
Network Engineer
Responsibilities:
- Designed and implemented VLAN and SSID layout for customer network.
- Worked on Layer 2 protocols such as STP, VTP, and other VLAN troubleshooting issues and configuring switches from scratch and deployment.
- Installed and configured VPN IPsec for remote users using Cisco VPN Client and Cisco Secure ACS.
- Created VLANs and Inter-VLAN routing with Multi-Layer Switching (MLS).
- Installed and Configured Cisco routers 2500 series, 2600series, 2800 series, 3600 series.
- Installed and Configured Cisco Switches 4500, 3500, 3700, 2950 and Nortel Switches.
- Designed, managed and performed troubleshooting RIP, OSPF routing environment comprising of multiple areas.
- Project managing complex network implementations, including Cisco PIX firewall, Cisco VPN and Layer 3 implementations.
- Performed installation and configuration of Cisco Pix firewalls 515E, 525.
- Monitored and supported all aspects of network connectivity using Solar Winds.
- Supported and Administration of Windows Systems.
- Maintained the General Networking objectives of System/Network Operations.