Senior Systems Administrator Resume

Objective

To obtain a Unix system administrator position that builds and maintains valuable and robust computing environments through automation, proactive processes, and standardized procedures.

Skills

System Administration: Nine years of experience supporting Red Hat Linux servers. Red Hat Certified Engineer. Additional experience with Solaris, and other Unix-based operating systems. Understanding of system operation down to kernel level.
Security: Secured Internet-facing systems. Knowledge of current network, application, and operating system security tools and issues. Design of packet filtering firewalls.
Programming and Scripting: In-depth knowledge and experience with Perl and shell scripts. Knowledge of C and Java.

Employment

Senior Systems Administrator

December 2008 to March 2010

Confidential,

System and SAN administrator for servers running Infopia\'s business-critical ecommerce SaaS system.
Planned and implemented data center migration from managed hosting to new servers in a self-hosted environment.
Environment consisted of Oracle databases and Java application servers running on Red Hat Linux, Xen, Dell hardware, and an EMC SAN.
Installed and configured infrastructure servers: DNS, mail, LDAP, backup, and monitoring.

Unix System Administrator

October 2001 to December 2008

Confidential,

Lead development of enterprise-wide Linux standard.
Developed automated Linux installation and maintenance process.
Trained junior sysadmins.
Handled all aspects of system security in an unsecured, Internet-connected environment, including vulnerability analysis, subnet and host-based firewalls, and system hardening.
Provided support for computer-controlled medical equipment, including imaging modalities and radiation treatment devices.
Provided software installation and support. Compiled software from source. Performed fault analysis using system tools and debuggers.
Performed system capacity planning and hardware acquisition.

Internet Systems Developer and Administrator

October 1998 to October 2001

Confidential,

Designed and coded automated web site generation and archiving system in Perl.
Webmaster duties: Compiled, installed, troubleshot, and performance tuned Apache.
Security administrator for web sites and firewalls. Evaluated Internet-related security risks. Set up and maintained Linux-based firewalls.
Installed and maintained DNS, ftp, monitoring, and backup servers and Sun and x86 hardware.

Fraud Application Support

January 1998 to October 1998

Confidential,

Provided technical support to customers (Los Angeles Cellular, Cantel).
Planned projects and solved problems in a complex environment involving vendor, customer, AT&T, and VAN systems.
Trained support personnel.
Participated in CTIA EDI standards writing process.
Wrote parts of application support guide.
Designed and implemented enhancements to fraud application.
Wrote maintenance scripts in Perl and ksh.
Used of EDI and Sybase.

Unix System Administrator

May 1996 to August 1997

Confidential,

Administered Sun and HP servers.
Installed and tuned Solaris.
Installed and upgraded hardware.

Education

Master of Science, Computer Science

Certifications

Red Hat Certified Engineer (RHEL4)
Sun Certified System Administrator (Solaris 2.5)

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