Network Engineer Information Systems

GARY CHANG

PHONE:832-***-**** EMAIL: ************@*******.***

EDUCATION

University of Houston - Houston, TX

BA Business Administration - Management Information Systems

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CERTIFICATIONS

ITIL Certified Foundation class (Halliburton)

ITIL recertified (HP invent)

Cisco Certified Network Associate (CCNA)

Cisco Certified Network Professional (CCNP)

Cisco Certified Internet Expert Written (CCIE Written)

Certified Novell Engineer (CNE)

Fortinet Certified Professional NSE4

PROFESSIONAL EXPERIENCE

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Tech Mahindra

Network Engineer

4/2023-12/2024

Setup, Manage, install and troubleshoot large complex Cisco network environment with EIGRP, OSPF and BGP and MPLS VPN Cloud, utilize checkpoint 4200,4600, 5400 and 5600 to check log on smartview as tier one and tier 2 firewalls, Setup access policy, SSL VPN and PVPN with tokens with F5 APM and VIP Load Balancing with F5 LTM I2600 and i2800. Setup, install and troubleshoot Cisco WLC 5520 with Cisco AP3802 LWAPs, Migrate to WIFI 6 with Catalyst 9100 APs. Setup and install zscaler policy and whitelisting, troubleshooting zscaler desktop agent. Manage Avaya Phone System, Avaya auto attendant system aura system manager 10.1. Support zscaler agent, Cybereason, forescout secure connector, trellix, forcepoint one endpoint Utilize remedy force system for incident, Service Request and change management. Setup, manage and install Splunk, IPAM, HPNA, algosec, Qualys, CyberArk, entuity. Utilize algosec security management suite to manage firewall change request. Bluecoat Proxy to Zscaler migration project, WAF support for Incapsula, Imperva, vulnerability penetration test patch. F5 APM Integration and support install RSA SSLVPN an PVPN profile. Setup and maintain Qualys guard for vulnerability scan. Configure CMC Helix discovery with snmp to monitor device alerts, Implement Cisco ISE for device authentication.

Logisnext America

Network Admin

Houston 12/2021-1/2023

LAN refresh project utilizing cisco catalyst 9300, catalyst 9500, nexus 9300 for the manufacturing facility and data foundry

Datacenter. Support palo alto platform – 3050, 3220, maintain and push out security policies, NAT, global protect vpn, ipsec vpn tunnel, cisco platform, cisco 3800, 2900, 3600, 3560 switches, 4300 isr router. MPLS with bgp cisco 2921 routers. Support Aruba platform, Aruba instant virtual clusters with Aruba iap 335, 315, outdoor AP 318, 365, configure Ubiquiti air fiber for site-to-site air fiber connectivity. day to day – macd move, add, change, delete network connectivity, hands-on wiring, troubleshooting connectivity, work with vendors and internal customers(employees) via ticketing system to resolve azure vpn, cisco vpn issue, and establish new IPSEC vpn tunnels.

Cefinity

Telecom Network Engineer

Houston 6/2020-9/2021

Maintain and design network solutions, familiarity with otn and roadm. Configure, troubleshoot and install multivendor solutions, Cisco, Palo alto, Huawei, exinda, Checkpoint products. 5G era connectivity, connected enterprise networking, network as a service, enterprise network connectivity, awareness traffic engineering, network intelligence, private 5G networking, service deployment.

Manage and maintain large Fortinet deployment, vpn, ocvpn utilizing fortios 6.2 and fortios 6.4. Configure and install geodns, maintain Centos and Ubuntu Linux, setup and run icinga2 and Grafana on Linux, testing on Miranna. Main F5 and Cisco equipment

Hess

Network Engineer

Houston 12/2018-12/2019

Design, implement and support large and complex Cisco, Palo Alto, Juniper network environment. Cisco 6500, 7206vxr, Catalyst 9500 48 port 10g, Catalyst 9410 virtual chassis, ex4300, ex4200, ex3500, Infoblox trinzic800, Panorama, Palo alto 5510, Juniper firewalls, netscreen srx340 firewalls and NextGen firewalls. Aruba wireless controller and Aruba Aps. Configure, maintain and support Cisco Meraki environment and LAN refresh for the whole building. Support and maintain vsat, microwave and LTE with speedcast and rignet, gom rip to bgp routing for platform and oil rigs. Cisco ASA to Palo Alto Migration. Work with vmware, virtual machines, add exsi host, vmotion, vswitch, vms to solarwinds. Work with virtual box in GNS. Support Cisco DNA and ACI infrastructure

HOOVERFERGUSON

Network Engineer

Houston 06/2018-11/2018

Design, implement and support large Cisco and Meraki network Environment. Setup and configure Cisco Asa 5505, 5515, 5545, 5585. Configure active/active failover, Meraki warm spare, advanced security, filtering, traffic shaping, content filtering, barracuda web filtering. Manage and maintain Cisco wls 2500, cisco 1132, 1152, 1600 Aps, configure and rollout Mx100, mx64w, mr62, vmx100, mx250, mx350. Site to site vpn and wireless environment IEEE 802.11a/ac/n/b/g dual radios 2.5g and 5g. Cisco, Cisco Meraki wireless infrastructure rollout with site-to-site vpn on cisco asa to asa and cisco to meraki platform and MS Azure integration. Cisco ASA to Palo Alto Migration, design, implement and support cloud-based sd-wan solutions. Taking multiple datacenters to the could.

REGIONIV

Network Engineer

Houston 01/2018-6/2018

Design, implement and support large complex Cisco network environment. Maintain and support voice/data integration platform. Act as a escalation point for enterprise monitoring group and other operational support group. Documenting process and cross train other members of the team. Hands on experience with Cisco router/switch platform, wireless lan controller, ASA security appliance, Cisco call manager, call unity. Working as a group and streamline with IT coordinator and Project manager on various projects. Familiar with ITIL process and ITIL foundation certified. Support CUCM, unity connection, ipt, cisco 7942. valcom page pro server, clocks. 2way speakers like the pa sip, SCCP, PRI, Data T1. phonoscope, att optiman. meraki, ruckus zone director, cisco wlc, cisco 1132. Monitoring via darktrace, fortisiem, SolarWinds. Configure, troubleshoot and support4451, 4500, 3750, 3850, 3650, 3524, Sourcefire ips, 5585. Configure and troubleshoot 2801, 2821, deadnet project,

TECHNIP

Network Engineer

Houston 02/2016-03/2016

Design/Create Printer VLAN, troubleshoot network printer issues behind internal firewalls with inside tech and external vendors.

Update firewall, pushing out firewall rules, creating firewall update tickets, work with Cisco contracts and updating update Cisco wireless inventories, configure cisco wlan, cisco wap, configure Cisco WaaS devices, configure cisco 2821 router and cisco 3560 series switches.

BAYLOR COLLEGE OF MEDICINE

HOUSTON 01/2013 – 09/2015

DATACENTER NETWORK ENGINEER

Design, install and implement Nexus 7010, nexus 2000 edge switch, fabric path, vpc, UCS 6248. Install and setup Nexus 7k, 5k, 2k integrator with UCS 6200. Cisco 5108, cisco 2248, Nexus 5000, Create virtual machine from Cisco UCS,

migrate virtual machines from Cisco UCS including the use of VMware, vSphere tool, vCenter database with ESXi host 5.5. ESXA Network - 10GE RJ45 switches for rack ESXA SAN,

WAN Cabling. UCS setup. Install and upgrade Cisco ASA 5560, upgrade and install ASA image to meet the current standard.

Install and configure Cisco IDS to ensure intrusion detection and to check network anomaly compared to the benchmarks. Install and setup brocade fast iron switches in the offsite datacenter with dual path connectivity running OSPF

routing protocols. Setup and migrate server farms from legacy foundry equipment to the new 10Gig cisco nexus 2224 and 1gig

cisco nexus 2248 switches. Configure and install vrrp and hrsp on the Cisco network switches. SAN setup from the wiring standpoint; clean up and rerouting wiring from the old equipment and redesign and

re-implement the brocade fast iron switches with OSPF and redundancies and reroute all the traffic from APCs, network monitoring devices and high-level servers to ensure 100% up time.

Alkek Network Infrastructure Replacement (new patch panels, new wiring, new racks, new servers and new storage devices. Decommissioning older equipment to save cooling and space and increase density for more future capacity

planning. Oracle Serve’s, ESXA Servers and sug-prod-ctrl1. Network and storage connectivity and configuration. Configure implement and support Dell live rack and Dell 9300 switches. Support NAS, Storge devices, FOE, NetApps

SCHLUMBERGER

HOUSTON 08/2011 - 10/2012

SR. NETWORK ENGINEER

Install setup and configure websense to perform urn filtering, blocking and stop threats.

Provide support for network systems and infrastructure

Troubleshoot network systems and application performance

Provide escalation point for resolving network problems requiring extended skills and extensive research

Work with vendor support org for troubleshooting and root cause analysis

Schedule and coordinate IOS upgrades per established process inclusive of coordination with other IT teams

Installation and migration from RIP, EIGRP to BGP on MPLS network for Smith International acquisition.

Frame relay, point to point T1, DS3.

Install and configure VPN gateway VPN concentrator

Migrate from RIP protocol to BGP on a MPLS network for Smith to Schlumberger merger

Configure and install Cisco Was

Design, implement, and rollout layer 3 and layer 2 connectivity at MI Swaco, Wilson and Smith sites

Implement VRF tunnel in spinning off Wilson project.

NRG Energy

HOUTON 11/2010 - 04/2011

SR. NETWORK ENGINEER (CONSULTANT)

Configure install and implement websense email security, data security and ensure the urn filtering works with

clients’ machines

Support datacenter, corporate wireless, Cisco ASA, Cisco 6509, routing and switching.

Design support and implement Cisco network using MPLS, OSPF and EIGRP

Support Network devices: Cisco 3560, 3550, 3560.

Comops implementation.

Design and implement new layer 2 network in the new NRG building with 6509

CRH PLC

HOUSTON 03/2010 - 11/2010

SR. NETWORK ENGINEER (CONSULTANT)

Design Implement and support large ad complex Cisco network, manage Mars, IPS/IDS, and Cisco WLS.

Daily administration on ASA, FWSM, Pix firewall.

HP INVENT - HOUSTON, TX

HOUSTON 01/2009 – 03/2010

GLOBAL TELECOM OPERATION

Troubleshoot LAN/WAN issues and VoIP issues in the global network.

Documentation with Visio

Familiar with processes and ITIL foundation certified with HP and ITIL.

Design Implement support large complex HP, Cisco network: Cisco 6509, Cisco ASA, Pix firewall, FWSM,

SUP32, SUP720, HSRP, BGP, MPLS, OSPF, EIGRP, Frame Relay, VPN, SONNET, Switched Ethernet network

Checkpoint firewall, HP procurve, Extreme summit48, blackdiamond, HP procurve AP. CSM, HPOV, MARS,

Cisco Works NETQOS, HPS. Switched Ethernet network.

Design, implement, and support ASA 5540, 5520, Pix 525, FWSM, Checkpoint, IPS, CSM 3.1, VPN, 2801 ACLs.

HPSC, OPVI.

Cisco IDS, IPS, ASA 5520, 5540, 5550, FWSM, PIX 515, 520.

HALLIBURTON

HOUSTON 06/2006 – 12/2008

SR NETWORK ENGINEER

Troubleshoot LAN/WAN issues and IP telephony issues at the corporate office and remote offices.

Install and provision Aruba aps, configure Aruba wireless controller and guest access for clients.

Documentation process, procedures, training.

Configure and turn up cisco 805, cisco 821 crypto map VPN and dmvpn plus Nortel VPN

Test and turn up BGP in a multi-protocol network environment with EIGRP and OSPF

Design, Install and implement large and complicated scale network. Supporting routing, LAN/WAN, voice, data

network, VPN, wireless in the U.S. at approximately 250 frame Relay T1 site and 50 VPN site. Multiple large

sites has over 2500 employees.

Design, implement and support VPN, ACLS, ASA, PIX, IPS, Cisco Waas

Provide training for employees, process, documentation, project coordination within the company.

Spec out memory, platform, card options for Cisco 3845 router, program and configure Cisco 3845 router to

work with DS3 Connection, frame DS3 connection, configure and support Cisco 3845 with AVPN connections,

MLPPP connections.

Configure, install and support Cisco LAN switches, 2900, 3700(gig) stackable switches.

Design support and implement Cisco VPN (1811) using gre tunnel and IPsec tunnel. Remote sites connectivity.

TREADSTONE CONSULTING

HOUSTON 04/2006 – 05/2006

SR. CONSULTANT

Install and Configure Cisco AP 1132 with Leap and WP2, WLSE implementation. Create Rocs for wireless LAN

implementation Configure vlans 3560, 3512xl, 6509, 6506, 4006, 4507R.

Manage and maintain Cisco works 2000, SolarWinds, MRTG, IP sentry.

Install configure upgrade websense 5.5 to 6.1.

Troubleshoot internet connectivity, Ethereal. Install and configure Nokia Checkpoint NG, NG-AI. Migrate Catos

to IOS native

PRO-ONSITE TECHNOLOGIES

HOUSTON 05/2005 - 03/2006

NETWORK CONSULTANT

Install and configure Cisco pix 501, 506.

Configure and install Cisco router and switch and provide connectivity.

Windows 2003 server, Install and configure Symantec R360 firewall, VPN solutions

Configure active directory, terminal services, VPN, pptp. Install wireless LAN, Cisco switches, install and

configure windows XP, troubleshooting network connectivity, backup and disaster recovery.

Veritas NetBackup, Seagate tapeware. Install and configure Citrix meta frame. Install and configure exchange

server. Install configure large network printer, supporting print, fax etc.

Data migration and data transfer. Install and configure SQL, DNS, wins.

CIP COMMUNICATION INC

HOUSTON 09/2004 - 04/2005

NETWORK CONSULTANT

Install and configure Cisco pix firewall, netscreen VPN, Extreme network switches, HP ProLiant server, linux,

MS 2003 server, Cisco Aironet 1200.

Site survey, cabling management, install point to point T1.

Configure Cisco 1750, 1720, 1721 routers and Cisco 3550, 3560 layer 3 switches.

Configure and install widebank 28 for T1s at datacenter. Manage Customer network at datacenter.

Configure Pix 501, 506, 515, pix VPN, configure access-list, troubleshooting routing issue.

Configure CallManager, SIP phones, Cisco 7940, 7960, and 7936.

Document customer network. Provide Visio drawings.

Perform remote backup, disaster recovery. Antivirus, antispam, urn filtering.

Configure and install email and fax collaboration software.

Utilize Network management tools, Cisco works 2000, SolarWinds, Whatsup Gold, Mrtg, IP sentry to document,

monitor and report network performance, bandwidth, inventory, and downtime.

LOOMIS FARGO & COMPANY - HOUSTON, TX

HOUSTON 08/1999-08/2004

NETWORK ENGINEER

LAN/WAN configuration and support

Support and implement Corporate / branch network connectivity

Maintain frame relay / VPN sites

Install and configure VPN gateway VPN concentrator

Troubleshoot frame relay, T1, VPN, DSL, ISDN network, intra-network connectivity

Setup, and troubleshoot routing protocols, EIGRP, IGRP, OSPF, TCP/IP

Implement dialup to VPN conversion

Implement Frame Relay MCI to Sprint network conversion

Building and configuring Network equipment for testing and lab environment

Integrating testing equipment to production environment

Area of responsibility and hands on experience for Cisco 806, 831, 837, 2610, 2621, 7206. Pix 515, 6509, 1720,

1401, 1417, 3500, 2924, 2950, 1538M, 400M, Cisco Works, Cisco IDS, SolarWinds, Sniffer Pro

Troubleshoot and maintain UNIX and Red hat Linux servers

Troubleshooting network performance with Sniffer Pro

Loomis Fargo Frame Site and VPN rollout team.

Upgrade Cisco 2610 access server, 2900 series switch and 804 ISDN router IOS, install physical memory, and

upgrade for Cisco 2610 access server and 804 ISDN router.

Standardize and implement router configuration on Cisco 2610 access router, 3500 series switch, 2900 series

switch, Cisco 400 series fast hub and 1538M management hub across board.

Troubleshoot Cisco 2924 Desktop switch, Cisco 2610 router and password recovery.

Setup and configure VPN using Cisco 804 isdn router, troubleshoot and debug Cisco 804-isdn router.

Implement NTP, SNMP management protocol for Cisco 2610 router 3500 series and 2900 series switch.

Retrieve data and generate error log reports via Cisco Works 2000 Server. Develop LAN/ WAN database to

manage static IP address, Router serial IP address, router Ethernet IP address, DLCI number, create form

interface for Helpdesk and PC tech data entry, Frame site information, ISDN & DSL sites information, query and

provide reporting feature for the LAN / WAN team, and upper management with a centralized data management

integration.

Handle Network cabling project at the branch level

Coordinate MCI and SWBell T1 Turn-UP

Order ISDN and troubleshoot ISDN network connection issue with SW Bell tech

Convert from branch office from coax network to RJ45 network, replace and replace with 3com fast ethernet

network adapter, install network drivers, Microsoft clients.

1999-2000 NetWare 5.0 Server rollout team.

Install and setup Dell PowerEdge Server, maintain NetWare 3.x, 4.x

And install NetWare 5.0 servers. Travel to branch offices and convert branch

Non-Y2K server, plus configure PC Dos, Win95, Win 98running

Network menu, route guide, Bams/BCCs, Variable Billing, in-house developed system, etc.

Setup and install HP network printer, configure Desk Jet for network

Printing. Install patch cables, mount Cisco 2610 router and 2900 series switch

To server rack. Setup and Configure NetWare boxes implement on WAN.

Configure Dell PowerEdge Server with NetWare 5.0, upgrade Compaq

Prosigna 300 series server to Y2K compliance. Provide Post installation support

For all branch offices. Install and configure Dell OptiPlex workstation, Cpt 'Lap top.

Develop database tracking system to manage Server assets management,

Keep track record of server hardware, software, server licenses and ArcserveIT license.

Prior Reference Available Upon Request

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