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System Administrator Engineer

Location:
Concord, CA
Posted:
February 13, 2013

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Resume:

Shaun Keenan's Resume */**/** **:** AM

Shaun Keenan

925-***-****

abqoro@r.postjobfree.com

OBJECTIVE

Sr. UNIX System Administrator or Architect in a medium or large e-commerce environment

SUMMARY

UNIX System Administrator with over 14 years experience working with computers. Able to adapt and

learn whatever is needed to accomplish complex goals in a constantly changing environment. History of

success utilizing a large breadth expertise to quickly deliver solutions to complex problems.

8 years UNIX administration (9 years Linux, 4 years Solaris, 2 years BSD)

SKILLS

Expertise: UNIX-Based E-Commerce Web Site Architecture, Production Operations, Security, Change

Control

Operating Systems:

Expert knowledge: Linux (RHEL3/4/5, CentOS, SLES9/10, Ubuntu), Solaris 9

Extensive experience: Solaris 8, Mac OS X

Some experience with: Solaris 10, AIX, FreeBSD

Systems Hardware: IBM BladeCenter, Dell PE19XX Blades, Dell PE Rack Servers, Sun V120-V1200, Sun

6800

SAN: EMC Clariion, EMC Symmetrix, Brocade FC Switches

Network Hardware: Cisco 6509, Cisco switches, Cisco CSM, Foundry BigIron, F5 BigIP

Mail: Postfix, Qmail w/ vpopmail, Courier IMAP, Sendmail

Web/App servers: Apache HTTPd 1.3/2.x, Apache Tomcat 5.x, WebSphere 5.x, WebLogic(minimal exp.),

IBM IHS

Network Apps, Protocols: BIND9, Samba, Sun Directory Server, NFS, IPTables, DNS, CVS, FTP, TFTP,

DHCP, PXE, TCP/IP, SSH

Applications: VERITAS Cluster Server, VERITAS SF for Oracle RAC

Programming/scripting languages: bash, awk, sed, perl, JSP/Java, PHP, Ruby, HTML, ColdFusion, C, C++

Filesystems: GFS, NFS, Linux LVM, VxVM, Sun MD

Databases: Oracle 8i,9i,10g, MySQL; Extensive SQL

EXPERIENCE

Gap (IPsoft, Inc. contract), San Francisco, CA 02/08-Present

Sr. Linux System/Application Administrator

Support production sites for gap.com, oldnavy.com, bananarepublic.com, piperlime.com

Systems and SAN administration of 300+ servers and 100+TB san storage

WebSphere 5.1 J2EE app server administration, including JVM tuning

CRB approver for all production changes; represent changes submitted by IPsoft engineers

Diagnose and resolve production site issues

Automate store closure (maintenance page) procedures

Script log analysis, app data gathering for production support

Implement new monitoring

On-call 24x7/365 as L3 support for IPsoft NOC

Work on-site with Gap, Inc. Direct site operations team

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Shaun Keenan's Resume 1/10/09 10:35 AM

Built network for on-site team's connectivity to both IPsoft and Gap networks

Valley Oak Systems, San Ramon, CA 03/07-02/08

Sr. Linux System Administrator

Maintain 40 Linux servers including 14 Dell PE1955 blades, 10 pizza boxes and 20+ Linux VM's

Maintain a 4-system ESX VMWare cluster with >40 Linux and Windows servers

Maintain an EMC CX300 with ~12TB raw storage

Part of a 3-person 24x7x365 pager rotation

Maintianed the entire ASP environment, hosting a java app w/ oracle backend for 60+ customers

Completely automated new ASP customer deployments, reducing a 120 minute procedure to

minutes

Automated many time-consuming manual processes in perl and bash, freeing up time for more project

work

Designed and implemented a complete Change Control system using SalesForce AppExchange

Maintained 3 Redhat GFS clusters and 3 2-node Oracle RAC clusters

Built an automated RedHat Kickstart + TFTP environment

Performed routine tasks on a Catalyst 6509 with a CSM (Load balancer)

Built a windows/unix monitoring system based on open-source software

Helped re-architect entire corp. and production network topology from a flat network to 40 VLANs,

increasing stability and throughput

Built a production gateway server to act as the entry point into production for tightened security

Helped build out DR site for production ASP

Hotwire, San Francisco, CA 11/05-03/07

UNIX System Administrator

Maintain 100+ Solaris 8/9 systems in production (app, web, dns, mail, ldap, db, etc)

Maintain 90+ Solaris8/9 systems in PreProd, Staging, QA, and Dev environments

Part of a 3-person 24x7x365 pager rotation

Maintain jumpstart system build environment

Maintain enterprise LDAP systems for UNIX authentication

Architect/Maintain network attached encryption appliance environment

Routine tasks on Foundry load balancers

Maintain monitoring environment (RedHat NocPulse)

Started building Linux KickStart environment for RHEL4 POC

Automation of various tasks through Perl, bash, sed, awk, crontabs

Documentation of new and existing un-documented processes

Simple tasks on Cisco switches/routers (CatOS & IOS)

Helped build out a new data center for Staging and production data warehouse, totaling over 40 cabs

of equipment

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Shaun Keenan's Resume 1/10/09 10:35 AM

Symantec (VERITAS), Mountain View, CA 03/05-11/05

Software QA Engineer

Performed QA testing for VERITAS Storage Foundation for Oracle RAC (SFRAC)

Helped developers track down causes of bugs in SFRAC

Designed an install system to fully automate RedHat and SuSE server installs, eliminating hours of

work for QA engineers

Developed PERL-based test cases and testing framework.

Helped fix complicated hardware and OS problems

Managed disk provisioning for SAN (Hitachi/Brocade)

Built a web server to host applications for the Engineering department

Built demo servers for our booths at OracleWorld

Recruited candidates

Trained and mentored new hires

CSU East Bay, Hayward, CA 02/01-03/05

UNIX System Administrator/Web Developer/DBA - Consultant

UNIX Administration:

Installed and maintained 25 Solaris/Linux/Windows servers

Wrote shell scripts in bash/php to automate various tasks, reducing manual workload

Physical installation and cabling servers in datacenter

Purchased, installed, maintained online courseware system (Blackboard), an apache/tomcat/oracle-

based application

Built/maintained many Apache web servers, including the main web site

Set up MRTG w/ SNMP to monitor Sun/Linux servers

Built a Linux distribution from scratch for use in secure production servers

Deployed Sun Ray thin clients in a lab and across business desktops

Built Sun Ray servers, configured, developed custom template-based user creation scripts

Performed system and application performance tuning tasks on large production servers running web

applications

Database Administration

Installed, tuned, maintained Oracle and MySQL databases on campus

Developed complex SQL queries with a web front end to gather statistics from commercial OLTP

applications, including PeopleSoft and Blackboard

Installed and configured Oracle HS to connect to DB2 through DB2Connect EE using ODBC

Management

Recruited, interviewed, and hired candidates for an IT position

Handled purchases of Sun and Linux systems

Managed Java application development for Blackboard project

Managed technical aspects of SunRay project

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Shaun Keenan's Resume 1/10/09 10:35 AM

Helped architect EMC SAN

Omega Networks, Walnut Creek, CA 2003

Owner/President/System Administrator

Created a UNIX shell and web hosting company, did accounting, taxes, etc

Built secure Linux server to host DNS, web pages, and UNIX shells

Developed main web site in PHP and MySQL, including an online ordering system

Built a qmail/vhost email system w/ IMAP/SSL to handle large volumes of mail on multiple domains

Toomay Technologies, Concord, CA 1999-2000

Software Developer

Worked as a C/C++/VisualBasic software engineer designing products for medical and law

enforcement agencies.

Developed TCP/IP client-server applications, along with a variety of other types of software for

Windows

Maintained the internal LAN and external communications.

Internet Frontier, Walnut Creek, CA 1999

Technical Support/Linux Administrator

Provided technical support to the ISP's customers

Basic Linux admin tasks such as backups, new system installs, troubleshooting

Learned TCP/IP networking with Linux

Sendmail, Apache administration

Fixed email problems as necessary

VIZ-Soft Development, Concord, CA 1997-1998

Programmer/Windows System Administrator

Designed and maintained network for the company using Windows NT

Built all company computers

Helped in troubleshooting problems over the phone and internally

Subcontracted to other companies as a system support specialist

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Shaun Keenan's Resume 1/10/09 10:35 AM

Designed advanced gateway communications programs

Also helped the Contra Costa Software Business Incubator through VIZ-Soft

Designed network for the entire floor to help all of the companies collaborate using Windows NT

Server

Designed, installed the company's E-Mail system (SoftArc FirstClass)

Set up individual computers for companies to connect to the server

Helped companies/education institutions troubleshoot technical problems

EDUCATION

CSU East Bay, Hayward, CA

Completed 2008 - Bachelor's of Science in Computer Science.

REFERENCES

Available upon request

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