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Network Administrator Security

Location:
Marble Falls, TX, 78654
Salary:
130,000
Posted:
January 24, 2025

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Resume:

JIM ABSHIRE

281-***-****

**********@***.***

Marble Falls, TX 78654

CONTACT

SKILLS

• Software-defined networking

• Remote Access solutions

• Network monitoring tools

• Routing protocols expertise

• Intrusion detection systems

• Network architecture design

• Network security management

• Wireless networking

• Switching technologies mastery

• Load balancing techniques

• Network access control

• Wide-area networks

• Virtualization technologies

• Security solutions

• Network automation

• Disaster recovery planning

• Local area networks

• VoIP systems management

• Cloud networking

• Firewall configuration

• Quality of service configuration

• LAN and WAN administration

• Advanced troubleshooting

• Hardware purchasing

Adept Sr. Network Administrator with a proven track record at Boston Scientific, I excel in network security management and effective communication. Spearheaded major migrations and security overhauls, enhancing system efficiency by 30%. Skilled in software-defined networking and fostering teamwork, I bring a blend of technical expertise and collaborative spirit to drive IT excellence. PROFESSIONAL SUMMARY

Sr. Network Administrator/Sr. Security Officer

Boston Scientific formerly Apollo Endosurgery, Inc, Austin, Texas EXPERIENCE

September 2015 - Present

• Design and implement Server 2012 R2, 2016 and 2019 Hyper-V Cluster Connect Hyper-V Cluster to EMC VNX5200, Dell PowerStore 500 SAN over iSCSI to Cisco 3850 Switch Stack Etherchannels, Fortiswitch 10 Gig 1048E, 1024D

Create Port Channel on Cisco 3850 Stack, Active LACP on FortiSwitches for VM

• Trunk to server multiple's VLAN tagging

Create multiple LUN's to host File, SQL and Application Servers, NAS server CIFs shares on PowerStores

• Migrate existing VMWare virtual servers to Hyper-V Cluster

• Create Etherchannel trunk to FortiSwitches

• Created Port aggregate from FortiSwitches to Fortigate 140D

• Created MC-LAG on Fortiswitches for redundancy

Created VLAN sub-interfaces on FortiGate for Network Micro-Segmentation Isolation: Servers, VOIP, Client, DMZ, Development, Isolated critical servers for SOX compliance

Created Firewall Policies for intent-based segmentation with UTM attached profiles for enhanced internal Security only allowed necessary services and protocols to cross micro-segmentations

Managed NEC SV9100 phone system and NEC DT700 phone as well as analog and IP based PolyCom

Migrated NEC PBX, ported DID blocks to Zoom hosted PBX, eliminating legacy

• PBX

• Created S2S IPSec VPN's to multiple remote site domestic and global Used Intent-based segmentation Policies allowing only required services and protocols over VPN

Replaced unsecure PPTP solution with secure SSL-VPN using authorized

• certificates and multi-factor authentication using DUO and FortiToken Implemented Firewall Policies utilizing ZTNA and UTM for SSL access that will conform to network security policy

Systems installation and

configuration

• Equipment inventory handling

• Network performance optimization

• Hardware and software monitoring

• Network repairs and maintenance

• Effective communication

• Network troubleshooting

• IP addressing and subnetting

• Network performance monitoring

• System upgrades

• Firewall management

• Technical support

• Network security

• Load balancing

• Disaster recovery

• System administration

• Data backups

• Server management

• VoIP systems

• Network systems installation

• Network security oversight

• Network architecture

• Access issue resolution

• Computer systems installation

• Network monitoring

• Disaster recovery procedures

• Windows 95/98/2000/XP/XP pro/nt

• Troubleshooting and diagnosis

• Windows server

• Active Directory knowledge

• Active directory

• Quick learner

• Teamwork and collaboration

• Teamwork

• Multitasking

• Problem-solving

Attention to detail

Network Security Architect

NOV (National Oilwell Varco)

Sr. Network Architect

CY-Fair Volunteer Fire Department

August 2014 - September 2015

Ensure the availability of client/server applications, configuring new implementations, and developing processes and procedures for ongoing management of the server environment

The project consists of several independent work streams including Oracle Identity Manager and OpenSSO; as well as LDAP directory implementation to enable PKI management for all end users

Participate in anticipating, mitigating, identifying, troubleshooting, and resolving

• hardware and software problems on servers in a timely and accurate fashion Developed filter criteria for and coordinated the implementation of data leakage prevention program

Assisted operations security teams with the modification and tuning of filters, as needed post implementation based on periodic review of quarantined information

Products consulted for include: Multi-Function devices, missile defense systems

• and network encryption software

Coordinated analysis of software, data flow, relational database schema and business practices and procedures to determine data quality and software effectiveness

Coordinate with network engineering, business application, and database administration functions to implement server systems that utilize industry best practices to meet corporate goals and objectives

Administration of Microsoft Windows 2003/2008/2008R2 network operating

• systems and services including Active Directory

• Architected and implemented identity management infrastructure System administrators will also often perform light programming (usually scripting, which involves writing programs to automate tasks)

• Manage SFTP site creation

March 2013 - August 2014

Administer and manage Microsoft Active Directory 2008 R2 accounts, permission, securities, etc

VMWare 5.0, Configure virtual switches, fiber channel SAN, VMotion, VSphere, LUNS, etc

• Install and administer Microsoft Windows server 2012 Hyper-V servers Provided subject matter expertise and guidance to Identity Management portions of a PCI project

• Install and administer Microsoft Windows 2008 R2, 2012 Hyper-V clustering Architected and implemented identity management infrastructure that provides consistent password management for over 150 applications running in over 500 separate locations globally

Install and configured Exchange 2013 including DAG for high availability, rules, permissions, SMTP connectors and relays

• Manage users and mail flow, Exchange Powershell scripts, etc

• Time management

• Multitasking Abilities

• Problem-solving abilities

• Organizational skills

• Excellent communication

• Adaptability and flexibility

• Reliability

• Time management abilities

• Self motivation

Network Engineer

Dinerstein Management

• Removed Exchange 2010 from organization

McAfee ePolicy/End Point Protection Suite administration including virus protection, HIDS/HIPS, firewall, encryption and other workstation security technologies

Creating architecture and design documents using use cases, data flow, interface and sequence diagrams

Solving complex problems including performance, capacity planning to build modular, scalable architecture and solution

• Identifying gaps to mitigate various risks

Evaluation and implementation of various security solutions that involved DLP

(Data Leakage Prevention) and Encryption solutions for Corporate Governance, SOX, HIPPA and PCI

Responsible for building Firewalls in Cisco, Fortinet, Juniper and Checkpoint environment for over 8000+ Fortigate (200B, 1240), 20+ Cisco ASA 5585x & 200+ Checkpoint-SPLAT Firewalls, 8 SA6500 Juniper Firewall & sites for network

& security components

Connectivity of location via MPLS, Configuration of GRE Tunnel to branches, CISCO 7200 Router, CISCO 6500/4500 Switches, CISCO IOS upgradation, Strong understanding of Cisco NAC, Installation of CISCO & NORTEL IP Phones, Worked on Smart Call Voice Recorder, Managing ISDN

October 2003 - February 2013

Citrix MetaFrame XPa, Presentation Server 4.0a, Administrator, Exchange 2000/2003 Email Server Administrator, Active Directory 2000/2003, Veritas Backup, Radius, IIS, Timberline, Create-A-Check, Wireless, Fax server, VNC, Net Meeting and Remote Desktop

• Responsible for all aspects of IT Security

Responsible for all Active Directory administration including but not limited to creating users, containers, computer accounts, printers, servers, GPO's, and scripts, directory replication

• Migrated databases to new servers

• Responsible for Citrix daily support

• Implemented IP printing from client side printing in Citrix

• Published applications to users

• Converted publishing full desktop to published apps in Citrix

• Created Group policy restrictions for users

• Migrated Citrix Datastore from Citrix Farm to SQL server Responsible for Citrix server upgrades/updates and server rebuilds and data restores

• Install and configure servers with predetermined resources and user interaction

• Design and implement Server Farm

• Implemented Load Balancing for server optimization and clustering

• Designed and implemented Published applications

• Setup print servers to host all IP printers for Citrix printing

• Provide secure 128-bit encryption for remote access via the NFUSE Troubleshoot and repaired resident internet issues and resident virus traffic control

Assisted, designed, and implemented Citrix MetaFrame XPa Server Farm Solution for remote offices and student computing labs including remote site travel, installation, and configurations

• Designed and implemented Citrix NFUSE access over SSL

• Designed and implemented complete VMWare environment

• Configured multiple HP DL 360 Proliant servers as VM Host

• Installed 2 Gig Fiber channel switch from servers to HP MSA 100 SAN

• Created virtual switches for internal, DMZ, and external connectivity

• Used P2V utility to convert physical servers to virtual

• Assigned memory, processor and storage disk for VM's

• Created multiple LUN's on SAN for VM storage

• Set block size to 4 MB as to enable 1 Gig drives

• Installed VCenter to manage host cluster and VM's

• Used VMotion to dynamically assign VM's to host with most available resources

• Ran scripts with SQL Query Analyzer for troubleshooting and maintenance Designed and implemented network solution as the internet provider for Collegiate Residential Housing

Responsible for Cisco Router, HP Procurve Layer 2, 3, 4 10/100/100 Fiber/Copper Switch, Created multiple VLAN's for server, users, VOIP, MGMT, Packeteer Packetshaper, IP3 Net Access, Wireless, VPN, PIX, Configuration and installation

Performed monthly backup/restore of company databases for Month End

• closeout

Responsible for all Exchange 2003 administration including but not limited to, new mailboxes and permissions, retention and recipient policies, public folders, Domain address space and Routing Group for Connectors, information store creation and policies, in front-end/backend configuration

Administrated corporate Anti-Virus/SPAM solution using Trend Micro Interscan Messaging Security Suite including but not limited to creating custom SPAM filters

Designed and implemented corporate backup and offsite storage strategy using Veritas Backup Exec via LTO tape library including but not limited Brick Layer backup for mailboxes

Supported and troubleshoot PC office issues/network connectivity issues and phone support

Head Technician Manager responsible for interview and hiring process of all remote field technicians and training

Responsible for supporting and redesigning 2, Metaframe XPa FR3/SP3 Farms,

• 100 + users each

• All farms load balanced

• Implemented NFuse Classic 1.6 Web portal via CSG Responsible for optimizing Citrix servers using tools such as Tricerate and

• Screwdrivers

• Prepared servers for presentation 4.0 migration

• Exchange 2000, Active Directory, and all server support We are primarily a Dell shop, however I just implemented an HP NAS 2000

• series running Windows 2003, shadow copy and disk quota Network Engineer

Wood Group P.C

Systems Engineer

Gamma Capital Services

• Upgraded Exchange 2000 to Exchange 2003

• 2000 to 2003 Active directory upgrade

• Blackberry Enterprise Server 4.0 and handhelds administration July 2001 - August 2003

My primary responsibilities consisted of designing, documenting, and implementing a diverse infrastructure

In my two-year tenure, I successfully created an environment that would provide

• 24x7 secure accesses to mission critical applications from anywhere in the world I also helped reduce company overhead and cost by implementing Citrix XP allowing for lower Frame circuit and PVC requirements, implemented a secure Internet portal to applications accessible from a heterogeneous environment

Created VPN access from Venezuela, Norway, Aberdeen, Australia, and China further reducing cost by avoiding Frame or PPP connectivity

I devised and implemented a backup procedure using Veritas Backup Exec,

• antivirus solution using Trend, and QOS solution via NetReality I have extended knowledge in the configuration of Cisco switches, routers, VPN, and firewall with an emphasis on security and future training in all areas of my profession

• NT Server 4.0/2000 Administration

• Consolidated over 40 domains NT4/AD mixture into single domain structure Responsible for supporting and designing Metaframe XPa FR3/SP3 Farm, 1000 users, single farm design using load balance

• Incorporated Citrix NFuse 1.6 Web portal

• Exchange Server 5.5

• Cisco PIX 506, 515, VPN 3000, 3005

• Cisco 3600, 1600, 1700 Routers

• Cisco 4000, 3550 switches

• Cisco VOIP

• Cisco AP 350 wireless

• BlackBerry Administration

In summary, I completely reconfigured the network, incorporated VPN solutions, security, disaster recovery, Dell server solutions, SQL 2000, Exchange 5.5, and a brief introduction to Cisco VoIP

May 2000 - July 2001

My primary responsibilities consisted of managing and documenting the company network, server upgrades and installation of software, PC support, Citrix Metaframe 1.8, Exchange 5.5, and telecommunications

I was responsible for maintaining the voice as well as the data; I focused on

• areas where I could reduce company cost

I switched the company from ISDN to ADSL providing faster access, lower monthly fees, and the ability to incorporate Aplio Internet phones saving the

Network Administrator

GC Services L.P., Houston Texas

Supervisor

Tomball ISD, Tomball Texas

company over $3000 monthly in long distance cost to Mexico I also implemented Citrix using published applications, administered the Frame

• and voice over Frame using Cisco MC3800 routers

• NT 4.0 administration

• Citrix 1.8

• Cisco PIX 505

• Cisco MC3810 routers

• 3Com hubs, switches

• Exchange 5.5

January 1999 - January 2000

Primary responsibilities include but not limited to network administration, server installations and upgrades, creating user accounts for network access and email

• Provide documentation and recommendations for performance enhancements Maintain Cisco router, switches, install cabling, PC support, software upgrades including NT 4.0 server OS, Veritas backup, Norton antivirus, Checkpoint firewall, and monitor WAN

January 1996 - January 1999

• Supervised Technicians and provided first, second, and third level PC support Installed new PC's in classroom and labs, assisted network administrator with creation of user accounts, printer and file shares in Novell 4.0 network

• Setup NT 4.0 network access to Austin for record department Supervised and assisted in all PC, software, printers, TV's, phones, and cabling in classrooms

Associate Degree in Computer Programming Language

Houston Community College

EDUCATION

January 1996

CERTIFICATIONS

• MCSE, MCP, MCP+I

• CCNA (Global Knowledge)

• Exchange 2000 (New Horizon's)

• Windows 2003 Server (New Horizon's)

• Citrix Metaframe 1.8 (Vector)

• VMWare 5.0

• Microsoft Exchange 2013

References available upon request

REFERENCES



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