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JAMES R SHEAFER Leesburg, VA 20176 US |
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SUMMARY |
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Highly Technical Manager with experience in building and motivating efficient global system administrator teams.
Senior level System Administrator with excellent communication skills adept at maintaining many hosts with few administrators. Experience in both large and small installations and using Agile and Kanban in technology environments. |
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SKILLS |
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Technical Management including staffing, capital budget, purchasing, management of individual tasks and whole projects.
Linux System Administration including OS and application installation and configuration, DNS, Apache HTTP server, Apache Tomcat, Apache Traffic Server, TCP/IP, host security, monitoring and alarming. |
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WORK EXPERIENCE |
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Billing Operations, AOL Inc, Dulles, VA |
June 2011 - Present |
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| Technical Manager, System Administration | ||
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Manager leading a team responsible for all billing for AOL Inc.
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Identity & Infrastructure Operations, AOL Inc, Dulles, VA |
February 2010 - June 2011 |
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| Principal System Administrator | ||
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System Administrator responsible for 900+ web proxy, authentication and parental control servers. Consolidated hardware resulting in a 33% hardware reduction. Migrated services from HP-UX and Sun hardware to cheaper hardware running Linux. Migrated under-utilized hardware to Xen Virtual Machines for a net savings in power, space and cooling.
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Safety & Mobile Operations, AOL LLC, Dulles, VA |
March 2008 - February 2010 |
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| Technical Manager, System Administration | ||
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Manager leading a team of seven System Administrators and one Technical Project Manager responsible for AOL's global Web Proxy, Parental Control, Mobile Web and SMS to IM Gateway systems consisting of 2,000+ Linux, Sun and HP-UX servers.
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Internet Access Operations, AOL LLC, Dulles, VA |
March 2006 - March 2008 |
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| Technical Manager, System Administration | ||
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Manager leading a team of nine System Administrators and one Technical Project Manager responsible for AOL's global web proxy systems consisting of 1,500 Linux hosts. Consolidated domestic and international datacenters without interruption of service.
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Internet Access Operations, AOL LLC, Reston, VA |
October 1997 - March 2006 |
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| Senior System Administrator | ||
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Senior System Administrator responsible for all aspects of web proxy complex administration. Worked effectively with a host-to-admin ratio of 500-to-1. Reduced host count by 50% and reduced capital expense by $6 Million while steadily increasing transactions per day to 15 Billion by replacing DEC, Sun and Windows hardware with commodity hardware running Red Hat Linux.
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Student Loan Marketing Association (Sallie Mae), Reston, VA |
August 1995 - October 1997 |
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| Senior Network Operations Analyst, Webmaster | ||
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System Administrator responsible for DNS, web server, file server, and backup functions of 35 Sun SPARC workstations running Solaris.
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GTE Government Services Corp, Centreville, VA |
March 1992 - August 1995 |
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| Engineer | ||
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System Administrator and help desk staff tasked to support Sun Microsystems servers on site at the Pentagon and other secure Dept of Defense locations with TS/SCI clearance.
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Tidewater Consultants Inc., Arlington, VA |
August 1990 - March 1992 |
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| Systems Consultant | ||
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Programmer supporting a variety of contracts in C, Cobol and other programming languages while holding a Secret clearance.
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CERTIFICATIONS |
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Red Hat Certified Engineer
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EDUCATION |
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Slippery Rock University, Slippery Rock, PA, August 1986 - June 1990 |
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Bachelor of Science in Computer Science - |
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CLUBS AND ORGANIZATIONS |
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Competent Communicator, Toastmasters International
Cub Scout Den Leader, Boy Scouts of America |
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INTERESTS |
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Bicycling
Amateur Radio Emergency Communications |
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