Issaquah, WA
khoffman AT


B.S., Computer Science, December 1995
Virginia Polytechnic Institution & State University (Virginia Tech)
Blacksburg, Virginia


Arcsight Certified Systems Analyst (ACSA) - November, 2007
Certified Information Systems Security Professional (CISSP #31172) - April 2002 - Present
ITIL Foundation Certificate In Services Management - January, 2003
Accredited Systems Engineer (ASE) - HP OpenView Network Services Management - June 2004
Accredited Systems Engineer (ASE) - HP OpenView Systems and Servers - UNIX - June 2004


Enterprise Management Engineer, Sept 2003 - Present
Enterprise Management & Security Analyst, Feb 2001 - Sept 2003
Costco Wholesale; Issaquah, WA

  • Designed, Built, and Managed network management system for Costco international network.
  • Worked with security team on various internal security projects.
  • Performed extensive Perl scripting for various network management functions.
  • Managed and maintained OpenView, CiscoWorks, and Visual UpTime software systems.
  • Responsible for enterprise management design for several multi-million dollar projects.
  • Worked to bring various monitoring systems together into an enterprise management system.

Senior Network Design Analyst, Advanced Communication Systems INC (ACS)
Fairfax, Virginia; Jan 2000 - Feb 2003
Contracted to Dept. Health & Human Services (Office of the Secretary), Washington DC

  • Installed and configured Real Server & Encoder Intranet system for use within DHHS.
  • Installed, configured, & utilized various Cisco applications within CiscoWorks 2000.
  • Installed and configured several Redhat Linux servers.
  • Performed extensive Perl & Apache Mod_Perl scripting for various network management functions.
  • Developed extensive base of automated network management reports.
  • Managed large network management system for HHS nationwide network.

Senior Network Design Analyst, Advanced Management Incorporated (AMI)
Aquired By Advanced Communication Systems INC (ACS)
McLean, Virginia; Nov 1996 - Jan 2000
Contracted to Dept. Health & Human Services (Office of the Secretary), Washington DC

  • Configured and installed Cisco 2900 Catalyst switches.
  • Installed and maintained NetScout RMON probes & software.
  • Developed complex network management system based on SNMP polling and data collection.
  • Designed computer model of nationwide internal network using Cabletron Spectrum.
  • Developed new Cabletron Spectrum model types using Level I Spectrum development tools.
  • Performed network performance monitoring using Concord's Network Health, Cabletron's Spectrum, RMON, and custom designed reports.
  • Assisted Central Network Management staff with Unix system administration and network performance troubleshooting.
  • Worked on various web based Intranet projects using Apache/Mod_Perl CGI scripting.
  • Designed, developed, and maintained four internal Intranet web sites using Apache, CERN, and Microsoft web servers.
  • Designed, developed, and maintained an email broadcast system for criteria based internal broadcasts.
  • Wrote various custom perl, tcl/expect, Bourne shell, gawk/sed scripts and Banyan BeyondMail Rules.

Senior System Administrator, Advanced Management Incorporated (AMI)
McLean Virginia; Jan 1996 - April 1996
Contracted to Dept. Health & Human Services (Office of the Secretary), Washington DC

  • Responsible for general Unix administration & security.
  • Used various security tools such as Tripwire, Satan, TCP Wrappers, & COPS.
  • Monitored and responded to CERT, CIAC, and vender security advisories.
  • Unix shell, awk, and sed script programming.
  • Responsible for basic DNS and sendmail configuration.
  • Helped develop Unix administration and security policies and procedures.

Programmer, Co-Op student, Federal Deposit Insurance Company,
Arlington, Virginia; Four tours.
May 1993 - Dec 1993 / May 1994 - Dec 1994 / May 1995 - Aug 1995 / Dec 1995 - Jan 1995

  • Unix Systems programming in C.
  • Wrote Banyan VINES Client/Service Applications in C.
  • Worked on Unix security team using TIS Firewall and various products such as Tripwire, COPS, and TCP Wrappers.
  • Administered Unix and Windows NT servers.
  • Installed, configured, and maintained Usenet news (C-News).
  • Installed and configured gopher, anonymous FTP, and http servers.
  • Unix shell script and awk programming.
  • Worked extensively on various Internet projects.
  • Created WWW pages with image maps, forms, and CGI.
  • Installed, configured Solaris workstations.

Programmer, Classic Cleaners,
Roanoke, Virginia: August 1991 - May 1993 (When needed)

  • Designed, developed and maintained customer & invoice tracking database software for PC.

Computer Operator, Roanoke General Electric Employees Credit Union,
Salem, Virginia; June 1989 - August 1991

  • Responsible for day to day system operation.
  • Streamlined operations with WFL programming.
  • COBOL and limited Extended Algol Programming.


Operating Systems/Hardware
Unix SVR4,BSD,Sun OS,Solaris,SCO, RedHat Linux
Banyan Vines
MS-DOS, MS Windows 3.1/95/98, Windows NT 3/4
UTS (Unix SVR3/SVR4)/Amdahl 5990
WFL/Unisys A4 & B1990
Computer Languages
C Perl
C++ Unix sh script, awk, sed
Java (Alpha) Prolog
Pascal Lisp/Scheme




I am an avid outdoors man having hiked and backpacked nearly 4000 miles since the beginning
of 1996. This includes the long distance hikes listed below.

  • Appalachian Trail from Georgia to Maine (2150 miles). (See my online photo album!)
    Photographs from this trip were published in New South Japanese magazine.
    April 1996 - October 1996.
  • John Muir Trail across the High Sierras from Yosemite Valley to Mt Whitney (210 miles),
    July 1997 - August 1997.
  • Coast to coast England from Irish Sea to North Sea (180 miles), September 1998 - October 1998.
  • Wonderland Trail around Mt Rainier, Washington (90 miles), September 1999 - October 1999.
  • Long Trail, Vermont (270 miles), September 2000. (See my online photo album!)
  • West Coast Trail, B.C. Canada (77 kilometers), September 2001.