John Oliver
San Diego, CA

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Status: Not considering new opportunities at this time. Please feel free to connect on LinkedIn or!

Summary of Qualifications: Ten plus years of experience in the IT industry, progressing from help desk to senior support and systems administration roles involving dozens of hosts and thousands of users. Excellent communication and people skills, and very customer service oriented. Very strong with Linux/UNIX, bash scripting, and TCP/IP networking. Familiar and comfortable with IPv6, Apple OS X, VMware, Solaris, Windows, Cisco IOS.


SAIC ( 10/16 to Present )
Principal Systems Administrator at SPAWAR Systems Center - San Diego CA

UNIX SME & technical lead on effort to replace legacy naval messaging system with a modern UCS / VMware / Red Hat-based solution.

SAIC ( 07/12 to 10/16 )
Principal Systems Administrator at SPAWAR Systems Center - San Diego CA

Lead systems administrator for nation-wide network consisting of Mac desktop clients and Linux servers. Technical lead for modernization of core infrastructure to a more manageable platform that supports current IA requirements and future growth. Remote automated management, maintenance, and patching for Apple OS X and CentOS 6. Maintain security posture according to IC / DoD / Navy / SPAWAR policies. Extensive scripting to automate software deployment and patching, configuration management, hardening to STIG requirements, creation of STIG checklists, and implementation of IA policies. Employ pf and iptables firewall rulesets, SELinux to increase system security. Frequent contributor to internal and external working groups and community benchmarks. Technical lead and mentor for junior personnel.

Virginia Network Services ( 01/12 to 05/12 )
Linux Systems Engineer - Chantilly VA

Provided a variety of engineering services to customer, including scripted kickstart deployments, yum repositories, customized iptables rulesets, and syslog server. Serve as last-resort contact for outages on production systems running Apache web and application servers under Red Hat 3 & 5, both physical and virtualized under VMware ESX.

FGM, Inc. ( 10/10 to 01/12 )
Network Engineer at National Reconnaisance Office - Chantilly VA

Packaged Windows applications for unattended installs for deployment via SCCM, AppV application virtualization, Windows batch files, Active Directory Group Policy Objects, testing, documentation of procedures, and engineered back-out solutions for each delivery. Worked with project managers, security, requirements, deployment team, and end user to deliver the right solution on time. Performed security reviews on Red Hat 5 with DISA SRRs.

FGM, Inc. ( 12/08 to 09/10 )
Linux Systems Engineer at SPAWAR Systems Center - San Diego, CA

Administered fifteen Dell PowerEdge 2950 servers running Red Hat Enterprise Linux 5, Windows 2003 Server, and VMware ESXi 4. Started position with no input or guidance... the lab had been abandoned with no documentation. Recovered administrative access, mapped services, addressed legacy applications running under Windows while rebuilding Linux-centric infrastructure. Kept hosts patched and secured to DoD / SPAWAR requirements, including SELinux in enforcing mode. Built Kickstart-based script to automate installation of new hosts. Administered / troubleshot MySQL backends and some Java code. Started virtualizing new hosts to minimize charges for new physical hosts and conserve data center resources.

Infracore, LLC. ( 03/08 to 12/08 )
IT Specialist at Verimatrix - San Diego, CA

Administered fifty Dell PowerEdge and IBM x-Series servers running Red Hat Linux, twenty Sun servers (v100, v240, and T2000) running Solaris 9 and 10, and twenty Cisco 2960 switches in a lab environment supporting the development of IPTV conditional access software. Worked with streaming video and multicast network traffic. Implemented kickstart and jumpstart servers as well as an OpenLDAP server for user authentication. Monitored network with nagios and cacti.

Systran Software, Inc. ( 09/06 to 03/08 )
Linux Systems Administrator - San Diego, CA

Administered thirty Dell PowerEdge servers (x6xx through x9xx) running Red Hat Enterprise Linux, as well as several Dell managed switches, Cisco 28XX routers, and Cisco PIX / ASA firewalls. Deployed VMware Server to greatly increase server utilization and decrease hardware requirements. Migrated legacy services to virtual machines. Built new colocation environment and migrated web services from old facility. Monitored network with cacti. Implemented squid proxy server. Assisted users with Linux, networking, and Windows issues.