Barracuda Networks
Atlanta, Georgia
UNIX Systems Administrator
Nov 2009 - Present

GAGA Sports & Entertainment, Inc.
Sausalito, California
Systems Engineering Consultant
Sep 2009 - Present

UnderGrid Network Services
Dallas, Georgia
Consultant
Jan 1997 - Present

Web.com
Atlanta, Georgia
UNIX Systems Administrator II
Jul 2007 - Nov 2009

• Pro-active redesign of enterprise-wide network monitoring system covering geographically disperse data centers
• Utilize Xen virtualization to make better use of multi-core servers for monitoring
• Utilize Groundwork Monitor Open Source as a base for network monitoring system
• Implemented NDOUtil database Nagios Event Broker for additional detailing for reporting
• Deployment/Operation of RedHat Enterprise Linux 5 hosting platform server
• Deployment/Operation of RedHat Enterprise Linux 4 webmail clusters handling > 180K domains and > 800K mailboxes
• Coordinate with Storage Solution and Network Engineering teams for new server deployments
• Member of team providing last tier of escalation for support/operation problems
• Developed Shell, Python or Perl scripts to automate most frequent administrative tasks
• Migrating file system data between SAN volumes
• Auto-importing configuration data into network monitoring system
• Pulling necessary data for reports from webmail and NMS databases

Seabridge, Inc.
South San Francisco, California
Systems Engineering Consultant
Mar 2004 - Aug 2009

• Conduct pro-active network penetration testing, security auditing and handle firewall administration
• Deploy and maintain server infrastructure to support J2EE fan loyalty portal application using Apache 2.0 and Tomcat 5.5 running on RedHat Fedora Core 4 servers
• Deploy and maintain server infrastructure for MySQL 4.1 on a RedHat Fedora Core 4 server with RAID5 storage array
• Maintain primary and secondary BIND9 DNS servers for company domains running on Fedora Core 4 servers
• Maintain Postfix Mail Transport Agent on all Fedora Core 4 servers
• Assisted in migrating portal applications source into a unified build
• Working to migrate existing deployment to multiple new RedHat Enterprise Linux 5 servers in bi-coastal data center locations.
• New deployment consisting of separate Apache 2.2 web, Tomcat 5.5 and RedHat JBoss 4.2 application, and MySQL 5.1 database servers at each location

Reflex Security, Inc.
Atlanta, Georgia
IT Administrator
Dec 2006 - Jun 2007

• Provide IT support for company staff
• Perform hardware and software upgrades of all office servers
• Maintain Samba 3.0 Windows Networking servers for office file and print sharing
• Maintain a dozen Debian Linux servers on-site running core services
• Exim, Courier IMAPd, Apache, Subversion, OpenVPN, DHCP
• Maintain Debian Linux servers off-site at co-location site
• Postfix, Dovecot, Apache
• Maintain remote Windows 2003 Exchange server
• Maintain Barracuda spam firewall appliance
• Install and manage new network backup server
• Administrate office VPN certificate issuance
• Install and administer multiple VMWare ESX servers
• Install and administer XenSource Enterprise server
• Handle installations of new developer Debian Linux workstations
• Provide developers with Debian issues as needed

Tandberg Television, Inc.
Duluth, Georgia
Senior Network Operations Center Engineer
Jul 2006 - Nov 2006

• Provide telephone support for all Tandberg Video On-Demand systems at customer installations within a 24/7 NOC environment
• Remote configuration turn-up of Tandberg VOD Catcher servers on MSO client sites
• Troubleshoot issues with asset distribution from content provider pitcher to MSO BMS

NTT Multimedia Communications Laboratories, Inc.
Palo Alto, California
Network Administrator
Apr 2001 - Jul 2006

• Perform hardware and software upgrades of all office servers
• Maintain a dozen Debian Linux servers, originally operating under BSD/OS or other BSD operating system
• Maintain internal and external Apache 2.0 web servers
• Maintain stealth primary, public secondary and tertiary BIND9 DNS servers
• Maintain Samba 3.0 Windows Networking servers for office file and print sharing
• Deploy and maintain Sendmail 8.13 Mail Transport Agent using central LDAP mapped configuration
• Maintain all Cisco routers and switches handling dual-stacked network
• Maintain all Foundry and Extreme Network switches
• Responsible for 30KVA Liebert NX 3-phase UPS purchase and installation in server room
• Network-wide monitoring with SMS alerts using Nagios and Groundwork Foundation/Status Viewer
• Install and maintain dual Debian Linux bastion host with high availability heartbeat monitoring for remote access to network
• Install and maintain office-wide AMANDA network backup to 30 cartridge AIT tape library and 7 cartridge DLT tape library
• Ported several outdated Tcl/Tk web scripts to PHP
• Developed Shell, Perl or Python scripts to automate most frequent administrative tasks

Netsurfer, Inc.
Atlanta, Georgia
Software Engineer/Network Administrator
Mar 1999 - Jan 2001

• Managed several Debian Linux servers handling Sendmail, Apache and Samba
• Managed two Windows NT 4.0 servers running IIS and MS-SQL for client software installation tracking
• Handled Vertias BackupExec network backups of the servers
• Worked with client backend integrations with billing and authentication systems
• Deployed Oracle 8 on Debian Linux for large client backend integration
• Managed primary and secondary BIND8 DNS servers on Debian Linux

SouthNet Telecomm Services, Inc.
Atlanta, Georgia
Senior Systems Administrator
Oct 1997 - Feb 1999

• Design and deploy 55 metro SuperPOPs handling remote dial-up and Voice over IP access using Ascend Communication equipment
• Several Debian Linux handling a full NNTP news feed, Sendmail MTA, RADIUS, Apache 1.3 web server, MySQL
• Managed two junior administrators and joined in on-call rotation with Netsaint network monitoring sending out pager alerts
• Managed Windows NT 4.0 server running MS-SQL and billing software package
• Coordinated with all bandwidth providers to establish external BGP peering sessions at all POPs

World Lynx, Inc.
Little Rock, Arkansas
Customer Support Specialist
Dec 1996 - Jan 1998

• Provide technical support to dial-up and web hosting customers
• Handled domain registration administration duties, coordinating with system administrator and webmaster
• Provided assistance to system administrator with system upgrades and outages

Los Medanos College
Pittsburg, California
2006

University of Phoenix
San Jose, California
2004 - 2005

Stephen F. Austin State University
Nacogdoches, Texas
1993 - 1995

• Developer status since April 2001
• Dozen packages under maintainership, several working along with co-maintainers
• Manage current Xen virtualization packaging team for Debian

• Developer with commit access to source code repository
• Ported network plugins to support either IPv4 or IPv6