Post a Job Sign in

Clifton Allison

Senior Systems Administrator at AlertSite.com

Coconut Creek, FL

-

Senior operations architect with over a decade of experience working with industry leaders in providing Internet services and applications. Proficient in a wide range of technical skills ranging from coding tools that empower operations personnel to overseeing high-performing engineering teams. Currently interested in shifting into the Medical Technologies Industry.

Work Experience

Senior Systems Administrator

AlertSite.com
-
Fort Lauderdale, FL
-

2010 to Present

• Responsible for running VMWare ESX servers (Linux) for Development and QA 
• Built fully automated installation imaging system to enable rapid deployment of Debian Linux monitoring servers reducing time to market from a full day to less than hour per newly imaged server 
• Automated all configuration elements of servers using open-source tools (FAI- Fully Automatic Installation, shell scripting) 
• Maintained reporting system for internal applications 
• Responsible for building out location monitoring servers (called InSite servers) as part of the Alertsite monitoring suite 
• On-call support for all global monitoring servers and enterprise website

Senior Systems Administrator

Edmunds.com
-
Santa Monica, CA
-

2010 to 2010

• Wrote technical documentation on how to administer XEN Virtual Machines 
• Created web based tools to manage XEN Virtual Machine pools to be used by Systems Operations team 
• Managed capacity of XEN based Virtual Machine infrastructure 
• Responsible for the setup and build out of complete site monitoring solution to include Ping Check, SNMP polling, CPU/Memory/Bandwidth trending and thresholding, JMX Heap Monitoring, and URL templates to be applied across multiple environments (QA, Beta, and Production) 
• Evaluated monitoring solutions (Hyperic, SiteScope and Zenoss) for Edmunds.com redesign website 
• Major contributor to high level redesign of core infrastructure 
• Coded core systems administration tools to enable standardization and auditing of production systems 
• Collaborated closely with vendor (RedHat) to analyze core dumps from XEN virtual machines 
• Built out and imaged RedHat Linux systems using kickstart for both physical and virtual machines 
• Managed day to day Systems Administration tasks such as access control issues for users via LDAP

Senior Operations Architect

AOL
-

2006 to 2010

• Technical lead of the Virtualization Center of Excellence 
• Awarded 2009 Green IT Award from the Uptime Institute 
• Presented (Systems Utilization and Memory Optimization tool) to the Uptime Institute in NYC at 2009 Green IT Symposium 
• Created and ran the Architects Council to oversee all divisions of Operations (2007-2009) 
• Responsible for leading and the overseeing the closure of the AOL Reston Data Center, a large scale data center migration (year of 2007) 
• Wrote technical specifications for hardware to be purchased through our reverse auction (RFP, 2006-2009) 
• Led initial virtualization efforts in operations 
• Solved and wrote how-to for SSH console redirection for HP iLo2 and Dell Drac 4/5 (something Dell had not done) 
• Tracked and managed the migration of 25,000 RedHat Linux systems to CentOS (2009) 
• Oversaw the sun-setting legacy systems initiative for the release of power-hungry HPUX and Solaris systems from our datacenters

Operations Architect

AOL
-

2002 to 2006

Principal Systems Administrator 
Team Lead for Core Infrastructures and Core Services 
• Created and led Core Service's Unix/Linux based architecture/working group handling all issues ranging from OS imaging, configuration management, alarming, monitoring, and all security items 
• Instrumental in system administrating over 8,000 HPUX, Solaris, and Linux hosts 
• Ensured the successful implementation of Linux systems by developing the tools and infrastructure required to manage and roll out Linux based systems on a large scale 
• Managed standardization, distribution selection and hardware issues related to the Linux migration 
• Served as primary point of contact for all communication with RedHat for all of AOL 
• Effected savings across Systems Operations in hardware purchasing plans saving millions ($) in capital costs 
• Played primary role in the introduction of AMD hardware into AOL, which is what now runs the backend servers of AIM/ICQ 
• Designed hardware benchmarking facility and designed and developed benchmarking application for AOL proprietary application and service oriented applications 
• Wrote original iptables firewall, and deployed first use of host based firewall at AOL, which now serves as a standard 
• Created and managed security policies for AOL's Core Services

Senior Systems Programmer

AOL
-

2001 to 2002

Systems Analysis and Troubleshooting Team 
• Selected Linux Distribution to be used by Operations and Development for AOL proprietary applications 
• Implemented solution to enable AOL Systems Integrations Team to install hosts from a network server remotely across thousands of hosts. This system was used to upgrade over 2000 Linux hosts to RedHat Advanced Server 2.1 
• Ported all operating system configuration packages to support Linux 
• Performed production platform testing for Linux systems; vendor vs. vendor; distribution vs. distribution 
• Directly led all communication with vendors to initiate Intel Systems rollout: HP, IBM, Compaq, Dell, RedHat, Intel 
• Led security initiatives such as the deployment of SSH across all systems, including legacy Unix systems

Senior Systems Programmer

AOL
-

1999 to 2001

• Created monitoring system for America Online's Proprietary System API 
• Manager of centralized repository of all system alarms using Micromuse's Omnibus database 
• Set up centralized site-independent System Logging (syslog) for 2000 host which alarm to Netcool/Omnibus. 
• Managed centralized remote monitoring for all AOL proprietary routing processes 
• Deployed site-independent MeasureWare alarming for HP and SUN alarming back via SNMP traps which report to Netcool/Omnibus 
• Created system that generates host list of all actively-monitored hosts, created daily for monitoring with a ICMP monitor 
• Responsible for AOL Ads Server monitoring via internal logging and alarming system 
• Engineered and wrote system that checks the validity of Ad URLs that service AOL and ICQ web based properties 
• Wrote a web interface to view and edit alarms in the Omnibus database using Sybase communication layer 
• Kerberos Administrator and Securities Consultant

Systems Administrator of Internet Operations

AOL
-

1996 to 1999

• Administrator of all Internet Service Monitoring 
• Responsible for the shared on-call administration of all Internet Services Web Hosting (www.aol.com, members.aol.com, www.icq.com) 
• Technical consultant for all streaming media (AOL branded Real Networks Audio/Media ventures, Princess Diana Live Funeral Broadcast with BBC) 
• Administrator of all AOL Internet Relayed Chat (IRC) machines 
• Primary tools developer (tcl/adp's) for Internet Services Web Hosting Infrastructure 
• Administrative lead for Compton's Encyclopedia, AolStore, and the AOL Multmedia Channel 
• Administrator for Real Video Servers during the Clinton Live Video Tapes / Star Report

Web Content Manager

AOL
-
Medford, MA
-

February 1996 to August 1996

• Director of all multimedia efforts for IACenter's website 
• Graphic designer for Cognito!:Student Research 
• UNIX System Administration

World Wide Web Consultant and Internet Support Contractor

Lockheed Martin Technical Services
-
Raleigh, NC
-

June 1995 to December 1995

Contracted to the U.S. Environmental Protection Agency's Office of Water) 
• Software purchase advisor 
• HTML author 
• UNIX System Administration

NCSU CSC Multimedia Lab Volunteer

North Carolina State University
-
Raleigh, NC
-

1993 to 1995

• On cover of Boardwatch Magazine for being first CUSeeme user outside of Cornell's development staff 
• Alpha Tester for Cornell University's CUSeeme Internet Video Conferencing Software 
• Macintosh System Administrator 
• Afterhours lab supervisor 
• Site administrator

Education

Bachelor of Science in Environmental Engineering

North Carolina State University -
Raleigh, NC

1991 to 1995

North Carolina School of Science and Mathematics -
Durham, NC

1989 to 1991

University of London -
London

1991

Additional Information

Technical Expertise 
 
• UNIX: Solaris 6-10 (Sparc and Intel), Linux (RedHat, Slackware, LinuxPPC, Debian/Ubuntu), HP-UX 9-11 
• Shell Programming: awk, sed, sh, ksh, bash, perl, tcl/tk, expect 
• Advanced Logical Volumes: xlv, lsm, Veritas, ext3 
• Web Servers: AOLserver, Apache, Netscape Enterprise Vosaic 
• Database Servers: Sybase, Informix, NetCool Omnibus 
• Web Programming [Specialization]: Database interfaces (TCL/AOLserver's Dynamic Pages and PERL-dbi/CGI)