David L. Willson

Teacher, Consultant, Free Software Professional

RHCE, Ubuntu Certified Pro, Novell CLA, LPIC 1

MCSE 2003, former MCT

CompTIA A+, Network+, Linux+

*** *** **** ******, ** abqc8f@r.postjobfree.com

Areas of Concentration

messaging and collaboration (Exchange and Zimbra), massive configuration

management (Puppet), storage (SMB, NFS, DRBD, LVM), virtualization (Vm ware

vSphere and Workstation, VirtualBox), Linux community activities (CLUE speaker

coordinator, certification study group lead)

Skills Summary

Services:

Zimbra Collaboration Server, IMAP, vsFTP, sshd, Apache httpd, mailman, Open

WebMail, sendmail, Samba, VNC, PostgreSQL, Commtouch AntiSpam Gateway,

Symantec AntiVirus CE, Vmware Server, Centrify

Microsoft Active Directory, Exchange Server 2003 and 2007, SQL Server 2000

and 2005, Internet Information Server 6 and 7, WINS, DNS, DHCP, VPN, NAT

Platforms / Operating Systems:

Red Hat Linux from 5.2 to RHEL6/Fedora 16, Ubuntu [Server] 6.06 LTS to 12.04

LTS, SUSE Linux 9.1 to OpenSUSE 12.1

Microsoft client OS's from DOS 4.01 to Windows 7, Microsoft Windows Server NT

3.51 to 2008 R2

Vmware ESX, ESXi, vSphere

Appliances:

Untangle, OpenFiler, Vmware vSphere, Zimbra Collaboration Server, Infoblox

Trinzic IPAM

Languages:

C, SQL, PHP, HTML, XHTML, JavaScript, CSS, bash, perl

Microsoft ADO, ASP, VBA, VBScript, WMI, WSH

Other:

Zimbra Desktop, Vmware Workstation, VirtualBox

Professional experience

9/2011 PRESENT Datalogix, Westminster, CO

Sr. Engineer / Linux Specialist Lead engineer for Linux and IP

infrastructure. c.90 Linux servers (mostly Oracle 5, some CentOS, RHEL,

other), Puppet 2.7, Centrify 4.x, Hadoop. Assisting with engineering of all

other functions: Windows domain, physical network, storage, and

virtualization.

5/2004 9/2011 PARSEC Group, Denver, CO

IT Consultant End-to-end consultative support of Windows and Linux

based networks, including engineering, administration, and

troubleshooting of MS Windows domains, MS Exchange, Linux, VMware

Server, firewalls, and network hardware for many small to medium-sized

businesses. (About 50 servers over 6 stable clients)

Trainer Delivering Linux, A+, Network+, Microsoft Official Curriculum,

and custom classroom courses. Completed three weekly Linux

certification study groups (LPIC-1, Ubuntu CP, RHCE)

Senior SysAdmin Sole support for the internal company network of 14

servers, 39 workstations, 8 switches, CISCO PIX firewall.

Web Developer Revised and updated corporate website

8/2003 - 2/2004 Sherman & Howard, LLC, Denver, CO

Network Engineer Administration of Red Hat Linux 9, Acrophobia,

WebCDwriter, DELL PowerConnect switches and PowerEdge servers,

DoubleTake replication software, Brightstor ArcServe Backup, Microsoft

Exchange Server, Windows 2000 Servers, and Windows XP

9/2002 - 8/2003 Independent - Denver, CO

PHP/Web Developer Developed system-administration and data-

manipulation scripts in PHP. Assisted in development of database

interface code.

Network Engineer - Performing install, maintenance, troubleshooting

and upgrades of Windows and Linux based workstations and servers.

Designing, implementing and maintaining integrated networks of

Windows and Linux servers.

Automation Specialist - Developed an automatic Event Log monitor,

which emails summary information for multiple servers to admins at a

designated interval. Developing management scripts, Office macros,

images, OS & application deployment methods, and creating automatic

maintenance/reporting tools.

Technical Trainer - Taught a 4-hr x 12-session Linux Installation and

Administration class for Parks College. Voluntarily facilitating a hands-on

Linux study group.

Internet Service Provider (TheGeek.NU) - Maintaining a Windows-

based server and a Linux-based server, provided email-lists, web-based

email, FTP, SSH, and fully-functional web space.

3/2002 - 8/2002 PARSEC Group, Denver, CO

Trainer - Delivered Microsoft Official Curriculum in the classroom,

Windows Core classes and SQL Server Database Administration.

Voluntarily facilitated a weekly Linux study group.

Consultant - Provided maintenance, critical care, and design services to

many small to medium-sized businesses. Windows NT4 and 2000 domain

and server administration, router configuration, workstation maintenance

and troubleshooting.

4/2001 - 1/2002 TouchAmerica, Denver, CO

Web Developer - Developed and maintained departmental website,

targeting Internet Explorer clients with support for CSS and JavaScript.

Wrote ASP (Active Server Pages) in VBScript and JavaScript, deployed on

an SQL Server using ADO.

Domain Administrator - Performed daily backups, weekly maintenance,

and critical support of two domain controllers, one IIS5 web server, one

SQL Server, and one application server (supported server only, not

application).

Database Administrator - Designed and implemented databases on

SQL Server 7. Wrote transforms from Excel in VBA (Visual Basic for

Applications). Also wrote data-transforms in Windows Scripting Host

(VBScript and JavaScript).

Desktop Support - Provided escalation and supplemental desktop

support.

9/1996 - 4/2001 MCI WorldCom, Denver, CO

5/00 - 4/01 Web Developer / Database Administrator

Developed and implemented a fully-scripted Office 2000 setup,

o

shared from multiple file-servers, initiated and configured by a

web-based interview.

Developed a rules-based support database to allow support

o

managers to define supported and non-supported customers.

Database used a system of weighted rules by organization,

location, and department of supported/unsupported employees.

Coded many web applets on demand, in various (but always short)

o

time frames.

6/98 - 5/00 Training Facilitator

Created and delivered a one-day Introduction to Outlook 2000

o

course over MCI TV (video broadcast to training centers

nationwide).

Designed and implemented a comprehensive certification program

o

for 500 employees from desktop, server, voice, and leadership

roles. Duties included, but were not limited to, class development,

training, web development, database development.

6/97 - 6/98 Desktop Support Team Lead

Trained and led five technicians supporting 700 employees in MCI's

o

primary Denver facility.

Duties included: Escalation-level desktop support, web

o

development, server maintenance, and definition of procedures.

9/96 - 6/97 Desktop Support Field Technician

Operating Systems: Windows (all versions since 3.1, including NT),

o

OS/2 (2.11, Warp, & Connect)

Network: Windows NT (3.51&4.0) and NetWare (3.1x&4.x) Servers,

o

IPX, NetBEUI, IP, Token Ring, and Ethernet.

Hardware: Laptops - Compaq (LTE & 5000), Toshiba, Hitachi, and

o

IBM ThinkPad. Desktops - DELL, Compaq, IBM, and Digital.

Network Interface Cards - Madge, IBM, SMC, and Intel.

Applications: Microsoft Office Pro, Microsoft Project, MicroGrafx ABC

o

FlowCharter 6.0, F-PROT Pro, Internet Explorer, Netscape, Microsoft

Exchange/Schedule+/Outlook, Lotus Notes, Mailroom, Attachmate

Extra! Personal Client 6.1, Host Explorer

5/1995 - 9/1996 Digital Equipment Company (Manpower), Colorado

Springs, CO

3/96 - 9/96 Help Desk Technician, Dow Workstation Service Center

Provided phone support for the following: Microsoft Windows 95,

o

Microsoft Exchange Client and Schedule+, Microsoft Office Pro 95,

MicroGrafx ABC Graphics Suite, WinZip, IRMA/KEA terminal

emulators, Timbuktu

5/95 - 2/96 Help Desk Technician, Windows 95 Launch Team

Received support calls on an escalation basis from frontline support

o

technicians regarding implementation and troubleshooting of

Windows 95. Issues involved: connectivity with NetWare, Windows

NT, Windows for Workgroups, and the Internet, local and network

printing, Windows Messaging (Exchange), User Profiles, and

Interoperability.

Voluntarily started and maintained the following programs for the

o

200+ technicians: A contact list, a social outing club, an advanced

training program, a unified point of access to all internal support

tools, and a searchable internal Knowledge Base of significant field

discoveries.

Awards Received

WorldCom '1st Award', 2000(x2)

WorldCom '1st Award', 1999

WorldCom 'RAM Award' for developing an excellent product, April 16,

1999

MCI 'Peak Achiever' for above and beyond performance, 3Q 1998

MCI 'Network Allstar' in recognition of superior performance, November 1997

Education

Technical Certifications

Red Hat Certified Engineer, November 2010

MCTS Windows Server 2008, May 2010

Ubuntu Certified Professional, March 2010

Novell Certified Linux Administrator, February 2010

LPIC-1 LPI Certification, August 2009

MCSE 2003, April 2008

Linux+ Certified Technician, October 2004

Microsoft Certified Systems Engineer, October 2000

Microsoft Certified Professional + Internet, October 2000

Network+ Certified Technician, June 2000

A+ Certified Technician, March 2000

Microsoft Certified Trainer, August 1999

Microsoft Certified Professional, February 1996

Training Courses Completed

RHCE on RHEL 5 Study Group, October 2010

RHCT on RHEL 5 Study Group, August 2010

TS: Upgrading Your MCSE on Windows Server 2003 to Windows Server

2008, Technology Specialist, May 2010

Ubuntu Certified Professional Study Group, March 2010

Carol Reynolds Challenge Seminar, October 2009

Carol Reynolds Vision Seminar, August 2009

Peak Potentials Millionaire Mind Intensive Seminar, June 2009

LPIC-1 Certification Study Group, 2009

Guru Labs GL-120, GL-250, GL-275, 2007-2009

Updating MCSE 2000 to MCSE 2003, both courses, 2008

Updating your MS Exchange 2003 skills to MS Exchange 2007, 2007

VBS & Windows Scripting Host, 2004

Developing XML Web Services using C#.NET, 2002

Scripting Microsoft WMI (Windows Management Instrumentation), 2002

Pre-installing and Deploying MS Windows 2000 Professional, 2000

Leadership Development Program I, 2000

Desktop Technician I, 2000

Seven Habits of Highly Effective People, 1999

Crystal Reports 5.0 - Beginning, 1999

Instructional Techniques (three day workshop), 1998

Customer Service, 1998

Microsoft BackOffice Small Business Server, 1998

Supporting Microsoft Windows NT 4.0 - Core Technologies, 1997

Supporting Microsoft Windows NT Server 4.0 - Enterprise Technologies,

1997

Conflict Management, 1997

Powerful Presentations, 1997

Formal Education

Associate's Degree - Electronics Technology

Bryant & Stratton Business College Rochester, NY, 1991

Regents Diploma - Math/Science R. J. Davis High School, Livonia, NY, 1986

References on request

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