Technical Resume
Gerry Brennan
4218 Bays Water Drive, Colorado Springs, CO 80920
Phone:   [Send email to request phone number] 75-5406 ALT:  [Send email to request phone number] 02-3829  Email:  [Send email using form at
bottom]
Summary of Qualifications
	VMware Certified Professional (VCP-310)  
	IBM Certified Websphere DataPower SOA  
	Implementation of BEA WebLogic Server (5.1, 6.1, 7.0, 8.1 Platform),
BEA WebLogic Commerce Server/Portal (3.5, 4.0), and BEA WebLogic Clustering,
Administration Weblogic v 7.0 – 8.1
	Over 16 Years of UNIX System Administration and Engineering.
	Implementation of SSH / SFTP Solution for Unix, Linux, and Windows
Servers.
	Implemented Company-wide backup server solution with Veritas
Netbackup.
	Conducted Pre-Sales and product demonstration for Linux offering on IBM
X-Series hardware.

	Conducted Pre-Sales and product demonstration for SUN hardware and
Software for Banking and Stock Broker Agencies.
	Provided security solutions including: Sacrificial Host, CheckPoint
Firewall 1, Trip Wire, SSH, TITAN, and VPN.
	Transition from NCR/MPRAS to Sun E10K servers.
	Implementation of LAM’s (Law Enforcement Manuals) for the Department of
Treasury 
	Implemented of Websphere v 3.5 – 6.0 and Commerce v. 5.5. 
Implementation of NDM.
	Integration of LDAP within Websphere
	Implementation of Development Lifecycle solution; including checkout
procedure for scripts and Quality Assurance.
	Wrote project plan and proposal to take over 22,000-user environment to
be moved from T.O.S.S to Lotus Notes 4.5.
	Security implementation for SUN, AIX, HPUX, and Linux servers.
	Disaster Recovery planning and implementation.



Gerry Brennan	Page 2
Professional Experience
09/07 – Present 	Cornerstone Systems Inc (IBM Partner)	 	Colorado Springs, CO
Senior Open Systems Engineer 
•	Installation, configuration, testing, and support of IBM System X; 3650, 3850,
and 3950 (MP).
•	Consolidation and Virtualization solutions for clients.
•	Installation, configuration, testing, support, and documentation of Blade
Center with Blade Servers.
•	Brocade Module and Switches
•	DS3400 Installation, configuration, testing, support, and documentation
•	Installation, configuration, testing, and support of RedHat and SUSE Linux.
•	Installation, configuration, testing, and support of IBM’s TS line of tape
libraries.
•	Architecture, Installation, and configuration of these same servers with SAN
attached storage, including boot from SAN and LUN mapping.
•	Support of the middleware group with installations of WAS 6.0 and 5.1.
•	Support of SUN servers (including V and E12K).
•	Customer presentations on VMWare and server consolidation.
10/06 – 08/07	Contractor for IBM Global Services	 	Colorado Springs, CO
Transition Engineer 
•	Support of the Ameriprise transition from American Express.
•	Architecture, Installation, Configuration, and troubleshooting of AIX P-series
servers with LPARS and HACMP.5.x.
•	Configuration of HACMP and San support for WAS Web, Application, and NDM
environments.
•	Installation, configuration, testing, and support of ArcSight security
software with Oracle database.
•	Installation, configuration, testing, and support of Solaris 9 and 10.  This
included creation of soft partitions for application support.
•	Architecture, Installation, and configuration of these same servers with SAN
attached storage, including boot from SAN and LUN mapping.
•	Support of the middleware group with installations of WAS 6.0 and 5.1.
•	Support of existing WAS 6.0, 5.1, and 4.1 installations in production support
environment for brokerage trading. 
•	Installation, configuration, and troubleshooting of IBM WebSphere Enterprise
Service Bus (ESB), V6.0.2, to provide JMS 1.1 support and reduce disruption of
service. 
•	Installation and troubleshooting of multiple ear files on one server
(instance).
•	Installation, configuration, testing, and support of the Adobe Document
Services with WAS 6.0.
•	90 warranty support for all applications that are turned over to the
customer.
•	On Call support nightly for responsible projects.












Gerry Brennan	Page 3
4/05 – 10/06	LSI Logic 	Colorado Springs, CO
Sr. Unix Engineer III
•	Architecture, Installation, Configuration, and troubleshooting of 142 RedHat
Linux Servers in 3 locations.  Each location running LSF 6.1 (cluster software).
•	Architecture, Installation, and configuration of Sun (Solaris 7 – Solaris 9)
and HPUX (10.20 – 11i v2) servers.
•	Support of the engineering group; which includes, tool installs, mirroring of
software, user accounts, troubleshooting, quarterly pm, and other necessary
support to keep business running.
•	License server (triad) install, configuration, and troubleshooting.
•	Architecture, installation, and configuration of TelAlert 5.6 with Corporate
Messenger 2.0 on Linux RedHat 4.0.  Also configuration with Remedy and Nagios.
•	Sarbanes Oxley 404 IT Controls and Procedures implementation and audit.
•	Engineering software installs for emt and e2 modules. 
•	Evaluation, testing, and recommendation for new hardware standard.  HP and IBM
were considered for this evaluation.
•	Hard drive technologies include: SCSI, SAS, SATA, PATA.

4/04 – 4/05	Contractor for CD-Telecom (Cendant) Denver, CO
			As of 8/04, permanent employee.
Sr. Security Engineer
•	Evaluation of company’s current security situation and made recommendations
based on findings.
•	Architecture, Installation, and configuration of SSH Server and Tectia manager
for company based security solution on Sun (Solaris 7 – Solaris 9), HPUX (10.20 –
11i v2), Linux, and Windows (Advance Svr and 2003).
•	Sarbanes Oxley 404 IT Controls and Procedures implementation and audit.
•	Scanned entire network (CISCO, SUN, HPUX, AIX, and Windows) via ISS RealSecure
to find vulnerabilities.  Based on finding repaired or created exceptions for
each item discovered.
•	Introduction of Linux based servers to environment as a cost savings measure.
•	Installation, configuration, and troubleshooting of NetiQ VigilEnt Security
Manager and Password Manager.
•	Architecture, installation, and configuration of sudo (alternative solution to
root) on Sun, HPUX, and Linux.
•	Documentation of Security practices and standards for each platform (Linux,
Windows, SUN, HPUX, and AIX).
•	Implementation, configuration, and support for Checkpoint’s Secure Platform. 
•	Architecture, Installation, and configuration of McAfee for UNIX and Linux.












Gerry Brennan	Page 4
9/03 – 4/04	Contractor for IBM	Boulder, CO
WebSphere, AIX, Linux Engineer
•	Installation, configuration, and setup of Linux (RedHat 8, 9, ES 3) and AIX
5.1 and AIX 5.2 environment on IBM X-Series, P-Series, and I-Series servers. 
This also includes on-call support and troubleshooting.  
•	Installation, configuration, and setup of Windows Advance Server 2000 and
Windows 2003 server.
•	These installations above also include booting from SAN storage.
•	Architecture, installation, configuration, and troubleshooting of WebSphere
4.06 – 5.0 (up to FixPack 2) and Commerce Server 5.5.  Installation includes IBM
HTTP and Apache server.  
•	Architecture, installation, configuration, and troubleshooting of WebLogic 7.0
SP4 - 8.1.
•	Installation, configuration, and setup of DB2 for WebSphere.
•	Found solution and documented same solution for LDAP authentication via IBM
BluePages to WebSphere.
•	Installation, configuration, and setup of VMWare ESX Server 2.0 and 2.0.1 for
LPAR’s (virtual machines)
•	Troubleshooting installation, day to day problems, and application problems
with WebSphere.
•	Procure of SSL certificates from GeoTrust and installation of these
certificates.
•	Installation, configuration, and troubleshooting of ProFTP, 
•	Installation, configuration, and troubleshooting of TSM backup solution for
servers via LAN and Fiber.

09/02 – 01/03	Contractor for Accredo Health/Nova Factor 	Memphis, TN
Sr. Unix Engineer
•	Expertise on Tru64 5.1A running on GS160 and GS140 Hardware.
•	Expertise on IBM RS 6000 running AIX 4.3.2, 4.3.3 and 5.1.  This includes
installation, configuration, on-call support, troubleshooting, and disaster
recovery.
•	Expertise on VMS running on Digital 4100.
•	Installation and testing of CA’s AutoSys.
•	EMC Symmetrix 3000 Family Enterprise Storage Systems, including ESN Manager,
Control Center.
•	Data center move from Kansas to Memphis.
•	Hiring and training of Operations staff.
•	Architecture, installation, and configuration of WebSphere 4.xx.  Installation
includes IBM HTTP and Apache server.  
•	Installation, configuration, and setup of DB2 for WebSphere.
•	Creation, security, database installation, logical and physical file system
partitioning, user administration, profile creation, table creation, and
backup/recovery strategies.
•	Responsibilities included hardware/software architecture, operating system
installation, configuration, tuning, administration, Hitachi and IBM DASD, disk
array configuration, MSSQL, load balancing.








Gerry Brennan	Page 5
05/01 – 07/02	Contractor for IRS 	Memphis, TN
Systems Administrator / Security Analyst
•	Transition from NCR/MPRAS to SUN E10K and SunFire E15K servers. 
•	Secured Electronic Filing (EMS) to GAO standards using ISS RealSecure,
Lockdown scripts, Cisco PIX, Raptor Firewall, and procedures developed and
implemented by myself.
•	Expertise on IBM RS 6000 running AIX 4.3.2 and 4.3.3.  This includes
installation, configuration, on-call support, troubleshooting, and disaster
recovery.
•	Expertise on Tru64 5.1A running on GS160 and GS140 Hardware
•	Responsible for Cisco Router and switching equipment.  (2500-AS5300).
•	Expert in Cisco’s IOS language for routers.
•	Expert in Sun Solaris 7 and 8.
•	Administrator of EMC Symmetrix 3000 Family Enterprise Storage Systems.
•	Responsible for communications between Trading partners and Internal Revenue
Service
•	Implementation and administration of Nokia Appliances with Checkpoint
Firewall.
•	Installation and administration of WebLogic.
•	Day to day operations monitoring electronic drains for failures.  Upon failure
respond, identify, and repair.
•	Responsibilities included hardware/software architecture, operating system
installation, configuration, tuning, administration, Hitachi and IBM DASD, disk
array configuration, load balancing, user 
•	Creation, security, database installation, logical and physical file system
partitioning, user administration, profile creation, table creation, and
backup/recovery strategies.
02/01 – 05/01	V-Tel Corporation	Melbourne, FL
Sr. Network Engineer
•	Windows 2000, including Advance and Data Center Server.  Configuring these
servers to work in a clustered environment and to communicate with wireless
phones.
•	Testing of 128bit environment on SUN based hardware (Ultra 10, E250, E450,
E6500), running Solaris 7 and 8.
•	Administrator of EMC Symmetrix 3000 Family Enterprise Storage Systems.
•	Testing of Cisco Routing technology with ATM switch backbone.
•	CheckPoint Firewall 1 and Cisco PIX.
•	Implementation and administration of Nokia Appliances with Checkpoint
Firewall.
•	WAP Technology for Wireless phones, including programming phones, and testing
security on wireless phones.
•	ARM Processor Technology, including installation and programming of processors
for credit card transactions.
•	Motorola, Nokia, and Qualcomm programming of cellular phones for 128bit
encryption. 
•	Design Network solution for Credit Card Transactions with 128bit encryption
and decryption.
•	SEOS/eTrust for securing the entire network and servers.
•	Implementation of ArcServe backup solution, including client agents for Linux,
Unix, SQL, DR, and MS Exchange Server.





Gerry Brennan	Page 6
09/00 – 02/01	ICGate, INC.	Winter Park, FL
Sr. Systems Engineer
•	Install and maintain RedHat Linux 5.2-7.0 in an ISP and Web Server
environment.
•	Install and maintain dialup, ISDN, DSL customers on RedBack and Radius
servers.
•	Architecture, installation, and configuration of WebSphere 3.5.  Installation
includes IBM HTTP and Apache server.  
•	Installation, configuration, and setup of DB2 for WebSphere.
•	Secure environment and prevent intrusion with ISS, SSH, Kerberos, and Radius.
•	Install and maintain Firewall for Linux environment (ipchains).
•	Install and maintain 24/7 monitoring solution with paging support
(BigBrother). 
•	Java, JavaScript.
•	Installation and administration of WebLogic.
•	Investigate new technologies and solutions for Linux environment.
•	Maintain Cisco routers (2500 series).
•	Install and maintain RedBack server.  RedBack server is used for DSL dial-up,
it uses a language variation of IOS called AOS. 
•	Maintain primary and secondary DNS servers.
•	Install and maintain LDAP in a Linux environment to work with Windows clients
•	Backup Solutions for Linux (BRU, Dump, CPIO)
09/96 – 09/00	Computer Horizons Corporation	Longwood, FL
Sr. Systems Engineer / Project Manager
•	Installation, maintenance, and security for Sun E3000, E4500, E450, E250,
Ultra10, and Ultra5. 
•	Expertise on IBM RS 6000 running AIX.  This includes installation,
configuration, on-call support, troubleshooting, and disaster recovery.
•	Ordering of necessary equipment from manufacturers including SUN, Veritas, and
CheckPoint.
•	Implemented HP / Database solution for order entry. This included a web-based
application.  The solution was a transition from a one K-series HP running
UNIDATA to a (MC SERVICEGUARD) Cluster running Oracle.
•	Handled all hardware and software associated with IBM 3290 and DEC including
but not limited to Hitachi, IBM DASD, and PMDF Gateway to Lotus Notes.
•	Administrator HP 9000 L, N and K series servers.
•	Administrator of HP MC/Service Guard for HP 9000.
•	OmniBack for Backup on HP Servers.  OmniStore for image storage.
•	Administrator of EMC Symmetrix 3000 Family Enterprise Storage Systems.
•	Installed and maintenance of Checkpoint Firewall 1.
•	Remote and on site installs for NCR 7780 Scanners using OS/2 platform.
•	Administered Optical system on HP 9000 running HP-UX 10.20 and Oracle.
•	Regressive testing of new domestic and international billing system.
•	Y2K certified testing and comparisons.
•	Documentation of current and future systems and development.
Gerry Brennan	Page 7
•	Installation and maintenance of Citrix and Terminal Server for secure
communications via banks through dialup and internet.  
•	Instructor for Unix classes.
•	Responsibilities included hardware/software architecture, operating system
installation, configuration, tuning, administration, disk array configuration,
load balancing, user 
•	creation, security, database installation, logical and physical file system
partitioning, user administration, profile creation, table creation, and
backup/recovery strategies.
•	Placed at the follow companies:  Emerge Interactive, DK Family Learning,
Fedex, ImageSoft Technologies, AT&T, Lockheed Martin, Cummins Engine Company, and
ISR Global Telecom
•	Administrator of Tuxedo and Autosys.
•	Schedule Resources (FTE) for each aspect of a project where needed.
•	Produced Work Orders as needed for resources on each project.
•	Setup Security for Dot COM Company to include a sacrificial host, firewall,
SSH, and Kerberos.
•	Installed and maintenance of Veritas NetBackup.
•	Disaster Recovery.
•	Implemented solution for local, long distance, and data with the assistance of
AT&T.
•	Implemented switched network solution (Nortel Networks).
•	Implemented Helpdesk solution running Remedy. (Remedy Change Management and
Remedy Web).  This included installation, configuration, and administration.  
•	Installation and administration of link between Remedy and Oracle.
•	Installation and administration of link between Remedy and HP Openview. 
•	Java, JavaScript.
•	Installation and administration of WebLogic. 
•	Implemented Development Lifecycle solution including checkout procedure for
scripts and Quality Assurance. 
•	OmniBack and OmniStore storage solutions.
•	Implemented SAN network for backup solution.
•	UNIX scripting and Development.
•	Administered NCR UNIX systems running System 5 Release 3.xx.
•	Internal support for Unix, NT, and Exchange Server.
09/95 – 09/96	J Crew Retail	New York, NY
Systems Administrator
•	Handled all hardware and software associated with HP 9000, R/S 6000, Sun
Sparc, and CSI/Unidata (pick based polling software).
•	Automated daily processes.
•	Setup and maintained NFS, Ethernet and Token Ring environment.
•	Installed, configured, and maintained 5 NT servers, 300 PC's, and 300 ASCII
terminals in 3 locations.
•	Software includes but is not limited to: Windows NT, MSOffice, Reflections,
Termite, Procomm Plus, LVM, Solaris 2.4, FoxPro, Unidata, Pick, Comshare,
Essbase, HP-UX 9.xx-10.01, Windows 3.11-95, O/S 2, IBM Lan Server, and Netscape.


Gerry Brennan	Page 8
09/92 – 09/95	Bonanza Trading	Bronx, NY
Telecom and Systems Administrator
•	Expertise in hardware and software for laptops, mid-range systems, and
communications peripherals, including but not limited to: R/S 6000, Altos, HP
9000, stand alone PC, Windows NT / 3.xx - 95 Beta, Wordperfect, Lotus 123,
MSOffice, Netscape, and VOS (Voice operating system).
•	Installed, configured, trained, and maintained terminals and user environment
of 75 clients.
•	Determined hiring requirements, training, and scheduling for 150+ employees.
•	Expertise negotiating with Union officials and employees.
•	Material handling systems and equipment.
Education
•	Bachelor of Computer Science, University of Phoenix 
Professional Development
•	HPUX Administrator Training
•	Veritas NetBackup Training
•	Lotus Notes Certified Administrator
•	Sun Competency Certification