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Network Security Engineer  Resume

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Atlanta, GA

SUMMARY:

  • Troubleshooting of firewalls (Cisco ASA, CP), and VPN tunneling with IPSEC or SSL.
  • Infrastructure ingress and egress points; firewall, switch, and VLAN management (Dot1Q).
  • Bandwidth utilization and connection testing with Wireshark, TCPDUMP, and SNMP tools.
  • F5 LTM/APM load balancing expertise, and data center design architecture proficiency.
  • DNS troubleshooting with UNIX CLI, Linux, or Windows based utilities (nslookup, NMAP).
  • Experience in configuration of esoteric applications/protocols for IT Security.
  • Designing TCP/IP networks with Visio and documentation of security policies (Remedy, AOTS).
  • Experience with of IPSec and SSL VPNs, terminated on various endpoints (CP FW - 1, ASA, F5).
  • Avionics systems including (AKA: ERAM) navigational systems (Global, Loran, TACACS).

TECHNICAL SKILLS:

Primary: Cisco routers and switches; F5 Big-IP LTM/APM; Cisco PIX/ASA and Checkpoint Firewalls; IPSec and SSL VPNs; OSPF, EIGRP, and BGP routing protocols; SNMP monitoring; Frame-Relay, ATM, MPLS; and trouble tracking with Ethereal/Wireshark sniffers.

Secondary: Juniper SRX firewalls, UNIX/Linux admin, Solaris, Windows 2003/2008 Servers, DNS, VMware Server and Virtual Center Infrastructure.

EXPERIENCE:

Confidential, Atlanta, GA

Network Security Engineer

Responsibilities:

  • F5 LTM, GTM, and ASA firewall support for a worldwide infrastructure.
  • F5 LTM iRule changes for SSL certificate based secure communications.
  • Support included script writing and rule verification for remote engineers to perform F5 activities.
  • ServiceNow ticketing platform used for monitoring and report generation functions.
  • Use of Infoblox for IPAM purposes and responding to IP requests.
Confidential, New York NY/Atlanta, GA

Project Manager/Network Engineer

Responsibilities:

  • Corporate administration and change management for CM meetings and executive funtions.
  • Network design and architecture implementation, from hardware installation through firewall rulebase recommendations, and Visio design/documentation.
  • F5 support and administration with LTM/GTM 11.5 configuration utility or the TMSH CLI.
  • F5 LTM 11.x and EM, APM installation inclusive with members, nodes, pools, and configsync.
  • Installation of Cisco ASA firewalls from Rack-n-stack to advanced user admin, and VPNs.
  • IP support for larger subnetting project (heavy CIDR) with / notation used for supernetting.
  • F5 LTM/APM 10.x updating attack signatures with UCS files, and editing of iRules with TCL.
  • DNS resolution and troubleshooting route caches at work stations and network equipment.
  • Linux support, SNMP monitoring (Zenoss or Solarwinds), throughput analysis of WAN links, ISP interleaving (BGP attributes), and troubleshooting connectivity at workstation endpoints.
  • Internet domain name service (DNS) connectivity and name cache testing for various locations.
  • Orion Solarwinds Network Performance Monitor and SNMP alerting administration.
  • Use of Network Observer or HP OpenView for alert/notifications of aberrant traffic behavior.
  • Setting alarm thresholds locally and monitoring of connections across the WAN (QoS status).
  • Security administration with the F5 LTM v. 11.3 software platform (heavy ASM exposure).
  • Responsible for analyzing, designing, installing and configuring of network infrastructure.
  • Checkpoint Firewall R75.40 monitoring and rulebase configuration with Smartdashboard.
  • PCI data security auditing for compliance with government standards.
  • Trouble ticket management via BMC Remedy for customer communications (SSL/IPSec VPN).
Confidential, New York, NY

Infrastructure Support Analyst

Responsibilities:

  • Data Center move support verifying server pool connectivity for globally accessible services.
  • Server building with focus on ticker financials, X file structure, and financial software.
  • Monitoring of Thomson ONE workstations, data recording, and Remedy trouble ticket monitoring, DNS troubleshooting, and remediation of gapping in ticker reception.
Confidential, Atlanta, GA/New York, NY

Network Infrastructure Engineer

Responsibilities:

  • Acting as Change Control Manager while others were on leave or vacation.
  • F5 (LTM) troubleshooting of server pools, IPSec or SSL profiles, end point load balancing, point-to-point connectivity, and IPSec certificate offloading.
  • F5 LTM traffic monitoring, logging, farm load balancing, auditing, and accounting/reporting.
  • F5 V. 10.x TMOS updates, iRule creation, and administration via CLI or GUI.
  • Running of F5 LTM 10.x qkview, and configuration files transferred for F5 Engineering support.
  • Provided information to the engaged parties addressing compliance standards, management reports, and other KPIs.
  • Use of Solarwinds IP monitor for a visual display of port usage and to regulate IP address usage.
  • Assisted the Process Owners in identifying and prioritizing process improvements.
  • Facilitated Senior Management meetings for Major RFC reviews and/or endorsements
  • Formulated test plans for “Proof of Concepts”; created Visio designs and architecture.
  • VLAN configuration and coordination with disparate stake-holder groups for project controls.
  • Troubleshooting of IPSEC/SSL VPNs, terminated on Checkpoint Firewall-1 or Cisco ASA.
  • Troubleshooting switches, routers, and servers in the data center, with EIGRP dynamic routing, remediation of SIA errors, VLANs, F5 member speed/duplex verification, and OSPF routing.
  • Design and configuration of data center hardware, including VMware Player, application per-VLAN configuration, subnetting, and server placement.
  • Monitoring of cryptographic applications, URL filtering, alerting, Syslogs, and logging.
  • Cisco ASA firewall administration ASDM utility, and NAT of secure application servers.
  • Cisco PIX rule cleanup, verifying ACL usage, replacing hardware with ASA 5505/5510 firewalls.
  • Cisco 2600/2800, and 7200 router configuration including static and OSPF dynamic routing.
  • Layer VLAN connectivity for LAN running Cisco 6500 IOS platform switches.
  • Configuration of esoteric security applications for IT Security (AAA, SSL, PKI, RADIUS, TACACS+, EAP, EAP-Fast, PEAP, LEAP, CHAP, MS-CHAP) and authentication.
  • Installation and troubleshooting of single-context ASA firewalls at perimeter ingress points.
  • UNIX system administration, including various CLI tools, and file manipulation (cat, vi, grep, passwd, kill, mv, mkdir, rmdir, chmod).
  • Prepared DLP policies, managed workflows, performed remediation of vulnerabilities reported or projected, and running of reports and administration from the management console.
  • Checkpoint Firewall-1 R70/R75.40 enforcement point installation (Secureplatform (SPLAT)).
  • Checkpoint Firewall-1 R65 user administration, and site-to-multi-site SSL VPN configuration.
Confidential, Oakton, VA

Network Engineer

Responsibilities:

  • F-5 Big-IP LTM load balancer configuration with emphasis on WAN traffic control and balance.
  • Troubleshooting (Visio) infrastructure with Wireshark, TCPDUMP, and other sniffer tools.
  • Maintained LTM (F5 Local Traffic Manager) for load-balancing multiple server pools.
  • Verification of firewall rules, and administration of Checkpoint Firewall-1, and the AOTS.
  • Maintained a LAN/WAN Data Center Infrastructure supporting MPLS connectivity and SNMP.
Confidential, Suwannee, GA

Senior WAN Engineer

Responsibilities:

  • Data center connectivity with Cisco 6500 switches (Sup720) and 7600-S series routers (RSP720), and configuration of BGP attributes for WAN connectivity (routing with EIGRP or OSPF).
  • UNIX (SunOS/Solaris) administration and troubleshooting for end-users across the enterprise.
  • Multi-homed BGP inbound and outbound policy configuration including route-maps, as-path access-lists, filter-lists, as path prepending, and associated troubleshooting.
  • Backbone network redesign planning, documentation, ISP selection and screening for MPLS/VPLS solution replacement supporting VoIP and jumbo frames with burst capability.
  • Firewall administration (Cisco ASA, and NetScreen) for managed services).
Confidential, Oakton, VA

IP Security and Network Engineer

Responsibilities:

  • Cisco (6513, 7609) and Juniper (M320) router configuration including load-balancing, route-maps, ACLs, OSPF single area configurations, call-flow troubleshooting, and BGP routing.
  • Data center connectivity and end-to-end troubleshooting of server and workstations.
  • Installation of VMware ESX server software and configuration of VLAN infrastructure.
  • Cisco IOS scripting, VPN fast re-route operations, and change management documentation.
  • Firewall ruleset changes to permit communication through ISP, direct connect, or VPN (AVPN).
  • Cisco ASA 5500 firewall administration for site-to-site VPN customers (multiple contexts).
  • Cisco CSS 11000 administration for HTTP web portal load-balancing operations.
Confidential, Norcross, GA

Network Engineer

Responsibilities:

  • Data center redesign of including Cisco 6509 and 2960 switches, F5 Big-IP LTM load balancers, Checkpoint R65 Firewalls (Nokia IPSO), VLANs with VTP, and load-balanced ISP connectivity.
  • F5 Big-IP LTM 3400 and 1500 load balancer design and configuration including upgrades to TMOS version 9.4, nodes, members, virtual servers and server pools, NAT, SNATs, and iRules.
  • Cisco PIX 6.35 configuration including access-lists and multiple site-to-site VPNs.
  • Repair WAN communications, firewall holes, and break-fix for trouble tickets.
  • Checkpoint Connectra R62CM SSL VPN with embedded Native applications and RADIUS.
  • Cisco 6506 CatOS L2 configuration (VLANs, Etherchannel) and troubleshooting; replacement of Supervisor card and power supplies, and upgrade to Native IOS.
  • Network troubleshooting and traffic optimization with tools such as TCPdump, Sniffers (Ethereal/Wireshark), Cacti (SNMP), and Kiwi Syslog Daemon (firewall logging).
Confidential

Senior Infrastructure Engineer

Responsibilities:

  • Designed two new data centers with 99.999% uptime, dual Cisco 6509s (Sup 720), HSRP/VRRP, OSPF routing with Virtual Links, F5 Big-IP Server Farms, and ASA 5500 series Firewalls.
  • Design and installation of Load Balancing solution with F5 BIG-IP Local Traffic Management (LTM), with Web and Application Servers, iRules for code enhancement, and SSL offloading.
  • Maintenance of legacy data centers with F5 1500 Load Balancers (130 server farms), dual PIX firewalls (6.3(5)) with multiple DMZ/security levels, Cisco 4509 cores running HSRP.
  • Responsible for Radware Linkproof ISP Global Load Balancer design and administration.
  • Site-to-Site VPN connectivity provided with Cisco PIX (6.3) and ASA (7.2) firewalls using the CLI or ASDM, in Active/Passive failover mode with NAT and/or PAT, IPSec.
  • Troubleshooting of various Cisco switches and routers (1800, 2800, 2960, 3750, 4509, 6509).
  • VMware ESX Server installations and administration with VirtualCenter Client 3.x.
  • F5 BIG-IP 3400 OS upgrades, setup of VIP listeners (virtual servers), virtual forwarding servers, profile optimization, traffic analysis with TCPDUMP, and training of system administrators.
Confidential

NSD Implementation Engineer

Responsibilities:

  • Cisco 7609/JunOS M320 including Syslog, TACACS, VLANs, line cards, and PIC installation.
  • F5 LTM Load Balancer configuration exports and network design planning with Visio.
  • Routing protocol configuration including BGP peering sessions and OSPF troubleshooting.
Confidential

Network Engineer

Responsibilities:

  • Cisco 3845, 4510, 6509, 7500, 7600; Juniper J2300, M-series, EIGRP, OSPF, BGP.
  • Cisco PIX and ASA (Adaptive Security Appliance) VPN configuration with IPSec encryption (3DES, MD5, SHA) using command-line (PIX) and/or ASDM client.
  • Checkpoint firewall-1 v4.1 administration and conversion to Watchguard Firebox SSL gateway.
  • T1-T3 circuit and BERT testing, DSLAM configuration, and liaison with ILEC and IXC carriers for local ISP.
Confidential, West Caldwell, NJ

Network Security Engineer

Responsibilities:

  • Infrastructure support of WAN: Cisco 7200s, 4500s, 6500s, F.R. mesh, VPN, VLANs, routing.
  • Responsible for Checkpoint firewalls, Active Directory GPO’s, Snort IDS for suspicious activity.
  • UNIX (Solaris and Linux) support including general file maintenance and networking support.
  • Cisco PIX firewall configuration with NAT rules, IPSec VPN, failover, and multiple DMZs.
  • Check Point Firewall NGAI configuration, NAT, DMZ, and monitoring with Smartview Tracker.
  • Change control documentation in Remedy and network group rep. for change control meetings.
  • SNMP/RMON probe monitoring and management with HP Openview, SolarWinds and MRTG.
  • VPN configuration using Cisco 3000 Concentrator, Nortel Contivity gateways, Vircom RADIUS authentication, SSL certificates and/or IPsec VPNs with standard encryption (3DES, MD5, SHA).
  • TCP/IP network design and documentation with Visio, documentation, and report writing.
Confidential

Electronics Technician

Responsibilities:

  • Troubleshooting T-1 lines, various routers, ISDN PRI racks, D-4 channel banks, and CSU/DSUs.
  • Configuration of Cisco routers (IOS 11/12.x), access servers, and Catalyst switches with HSRP.
  • Security protocols used: (AAA, SSL/IPsec VPN, PKI, RADIUS, TACACS+, EAP, EAP-Fast, PEAP, CHAP, MS-CHAP), and authentication.
  • Cisco PIX Firewall configuration (PIX v.4.x); VPNs, DMZ, rules, access lists and failover.
  • CSU/DSU and Telco line configuration including Frame-Relay, X.25, HDLC, ATM, and TCP/IP.
  • Configuration and troubleshooting of Windows NT/2000 Servers, DNS and DHCP servers.
  • SNMP agents between RDC’s of BellSouth’s OSI Platform (BOSIP) with HP Openview.
  • HP Openview with the data collector on SPARC workstation running Solaris 2.x in a NOC.
  • Configuration of IIS Web Servers, NT 4.0 Servers and Workstations.
  • T1-T3 BERT testing, DSLAM configuration, and liaison with ILEC and IXC carriers (for ISP).
  • Cisco 3845, 4510, 6509, 7500, 7600; Juniper J2300, M-series, EIGRP, OSPF, BGP.
  • AAA, SSL/IPsec VPN, PKI, RADIUS, TACACS+, EAP, EAP-Fast, PEAP, CHAP, MS-CHAP), and authentication.Cisco 7609/Juniper M320 including Syslog, TACACS, VLANs, line cards, and PIC installation.
  • Routing protocol configuration including BGP peering sessions and OSPF troubleshooting.

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