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Gregg Berkholtz's résumé

The most current, and recent, edition of my résumé is always available on this page.

Contact Info

For the latest info on how to reach me, please check out: http://www.tocici.com/aboutus.html

References & Recommendations

“…a highly qualified system administrator with a great deal of experience managing complex server infrastructures…received high marks from several of our clients…“
- Brian Jamison, CEO, OpenSourcery LLC (2009)

”…a highly-dependable systems administrator with a profound sense of ethics and community. He has that rare mix found in few systems administrators of being both a super geek - and a human, approachable co-worker.”
- Sean Larkin, Project Manager, OpenSourcery LLC (2009)

”…Gregg has been excellent to work with. His implementations have been solution based and always with efficiency in mind, both in terms of project completion and long term use…projects have always been completed in a timely manner…Gregg has been a great problem solver and has helped us to invent many out of the box solutions to many difficult projects…“
- Evan Geer, Technologies Administrator, Portland Oregon-based Charter School (2009)

”…We have had opportunity to engage Gregg Berkholtz on numerous occasions and continue to utilize his skill set to manage the Linux components of out network environment. Gregg has always been polite, professional and exceptionally conscientious in his work. He has earned the complete trust of the staff at NIS I would not hesitate to use him for projects involving the highest levels of security and confidentiality. His “can do” attitude and prompt response have earned him a permanent place on our roster of qualified professional…“
- Glenn Sexton, President & CEO, Northwest Information Services (2009)

“…a skilled technical professional to whom I give the strongest recommendation…”
- Miles Hochstein, Product Architect at Omnimedix Institute (2008)

”…was able to bring his substantial technical knowledge to bear on deciding on programs for group members…“
- Ed Sawicki, President, Accelerated Learning Center (2008)

”…one of the most talented individuals I have ever had the chance to work with. Gregg’s work ethic, depth and breadth of knowledge and skills, as well as his ability to see any task beyond its boundaries are absolutely amazing…“
”…I had the pleasure of working with Gregg in my first post-College job. After working with Gregg for a number of years, I can definitely say he has influenced me more than any college class ever could. Gregg’s Linux administration, network engineering, system design, documentation, and adherence to industry/technological standards are second to none. You can be sure that if Gregg is working on a project, it will be completed correctly, properly, and with the highest level of reliability. Gregg is an amazing resource to have in any business environment. I cannot recommend Gregg enough!“
- Bill Hill, System Administrator, The Yoshida Group (2007)

”…detail oriented…early adopter and supporter of Linux and helped us provide open source solutions that saved the company quite a bit of money, while still delivering expected services…“
”…to his credit, we never had any service outages due to viruses, trojan horses, worms or DOS attacks…”
- Boyd Campbell, Senior Manager, The Yoshida Group (2007)

“…he was consistently professional and extremely knowledgeable in his field. Our interactions gave me the opportunity to witness his skills as a very efficient problem solver and dependable information technology administrator…“
Matt Crouch, Supervisor of Global Services, OIA Global Logistics (2007)

”…His ability to adapt and learn makes him seem like he is never stuck on a problem…“
- Grant Koeneke, Sr. DBA/Architect, Banfield Pet Hospitals (2006)

Some letters available by request, others are available via my account on LinkedIn

Career

Goals

I am a time-proven quick learner seeking positions exploiting my professional traits as a polymathic systems administrator, with experience on dozens of computing platforms and hundreds of related services. I currently seek to position myself as a team-lead, where the introduction, or furthering, of departmental transparency enables a primary focus in information systems:

  • Service virtualization
  • Performance optimizations
  • Design, mergers & migrations
  • VoIP, T1, and analog voice services
  • Service stability, and security assurances
  • Development and implementation of sound documentation and communication processes
  • Documentation standards; inventory, naming schemes, equipment labeling, configurations and builds, and monitoring/on-call procedures

Overview

Specializing in enterprise computing level support and solutions, since 1995 I've helped organizations streamline IT systems management, and lower overall operational costs. By primarily focusing in the realm of information systems design, mergers & migrations, system virtualization, VoIP and T1 voice services, performance optimizations, service stability, and security assurances. On operating system platforms ranging from Linux, Solaris, Apple Macintosh, Microsoft, Novell & SCO.

I've successfully introduced a culture of embracing changes, within IT structures, which has proven to enable rapid assimilation of new technologies, facilitates stronger organizational communications, and strengthens an organization's competitive edge.

Experience & Skills Details

YEARS PRIMARY SKILLS & ABILITIES
4 Direct-report capacity of supervising junior-level employees
5 Use and administration of SUN 450's (employer) & UltraSPARC workstations (personal)
8 Auditing security of information systems; developing business policies and processes; managing linux workstations
10 SAGE “Senior Systems Administrator” skill level; key personnel managing multiple IS/IT systems within multiple organizations; providing 24/7 on-call technical support to Asia, Europe & US offices (not just emergencies); use and administration of WiFi-based LAN & MAN technologies
11 Managing T1, analog & VoIP/SIP/IAX2 telephony solutions (3 years with VoIP); domestic & international business travel
12 Engineering & managing virtual and cloud computing environments, including XEN, ZEN, OpenVZ and VMWare GSX, ESX, Server & Workstation
12 Systems design, construction, maintenance with workstation and network-level hardware & software; managing linux servers, routers & firewalls in production environments; ethernet & token-ring LAN, fiber-based MAN, T1 & DSL-based WANs
17 Use & administration of general PC (x86) & Apple Macintosh hardware. (up to eight processor cores)
YEARS EXPOSURE AND EXPERIENCE LEVELS AS INDICATED BY YEAR-RANGE OF EXPERIENCE
0-1 Asset liquidations for closing and downsizing businesses
1-2 Virtualization using XEN and ZEN, Linux Terminal Server Project (LTSP), Amazon EC2/AWS & RightScale
3-5 OpenVZ, Mac OS X (10.3-10.5), Asterisk VoIP, Linux (Ubuntu), Zimbra, Apple iCal, WebCalendar, Mozilla Calendar, NeoOffice, wireless (WiMAX), Bugzilla, subversion, Oracle RAC, WebLogic, MS-SQL, Sybase, puppet (centralized configuration management)
6-8 Blade servers & SANs; Telephony (VoIP, SIP/IAX2, Asterisk), Wiki (Twiki, MoinMoin), SCO OpenServer 5, GroupWise, BorderManager, ZENWorks, MS Access, Progress, Informix
9-12 Linux (Debian, RedHat, Suse & Slackware), MAC OS 7 & 8.5, Windows 2000/XP, NetWare 3.x-5.x, Solaris 8-10 (Intel & Sparc), djbdns, BIND, Apache, IIS, Snort IDS, logcheck, tripwire, OpenSSH, OpenOffice.org, AntiVirus (TrendMicro, Mcafee, Inoculan), Nessus, nmap, Backup (rsync, Veritas, NovaStor), Exim, Sendmail, Cyrus IMAP/POP3, Zimbra, OpenLDAP, Novell's NDS/eDirectory MySQL, PostgreSQL, XMPP/Jabber, Office 97 & 2000, SSL, S/MIME, PGP, Squid Proxy, Ethereal, VMWare, wireless (WiFi), Nagios, Smokeping, MRTG/SNMP, RequestTracker, mailing lists (MailMan & home-grown); Samba/SMB; IP QoS; LAN & WAN IPX & IP tunneling (IPSec & IPX-tunnel) and routing (RIP, BGP, OSPF); mesh, PtP & star topology VPNs (IPSec GRE/IKE & BorderManager), MySQL, PostgreSQL
13+ LAN, MAN, WAN environments. DHCP (ISC, Cisco, Novell), NetWare/NCP, NAT, IP firewalling; perl, Unix shell (BASH, sh, ksh), awk, sed, PHP, C, C++, SQL, HTML, JavaScript, DOS 6.22/7, Windows 3.11/95/NT4, Linux (Debian & Slackware); wired & wireless ethernet & WaveLAN in switched & routed networks; T1, Frame Relay (PtP & PtMP), ISDN, & DSL hardware. ARCServe; Cisco, HP, Adtran, & 3Com equipment; data-center rack-mount environments; Tadiran Coral 1 & 3

Employment History

Owner, TOCICI

Portland, OR. January 1995 to Present

Specializing in systems configuration, documentation, design, construction, integration and operating system migration, as well as IT training & administration.

Current and past clients include all previous employers (Parkrose School District in the late 90's, The Yoshida Group since Sept 2006 & both Omnimedix Institute and OpenSourcery in 2009), local IT & Telecommunications consulting firms (some, since July 2000), local accountants, construction contractors, legal/law professionals, creative design firms, a ~500-employee non-profit organization, and various regional small businesses. International clients include hundreds of small businesses and independents.

Responsibilities include hosting, monitoring and management services for hundreds of physical and virtualized customer assets located within two domestic datacenters; for clients worldwide. Services include authoritative DNS hosting & registrar services, email, website, VoIP, VPN, and chat/IM hosting, as well as comprehensive systems monitoring and on-call/remote-hands systems administration services.

TOCICI's current (June 1st, 2010) service offerings include Professional Support for Free & OpenSource Software through www.profoss.com, comprehensive Information Systems Monitoring & Support through www.iSysMon.com, Virtual Private Server hosting via www.BuildYourVPS.com, and datacenter colocation with multi-homed cross-connect services through www.tocici.com. With exception only to client-provided collocated servers, all hosting services are provided through TOCICI-owned assets.

Systems Administrator, OpenSourcery LLC

Portland, OR. Sept 2008 to June 2009

SAGE Level, Senior. Managed internal and customer-owned infrastructure that serviced all organizational IT support needs, and a very diverse customer-base. Systems included firewalls, routers, switches, servers, desktops, and supporting services spread across 11 Linux systems (8 internal, 3 customer-owned), 2 Windows and 3 Asterisk phone systems under a business-hours availability plan. Primary accomplishments included:

  • Built & secured thin-terminal (LTSP) systems for K-12 (high school) and private-business environments, with between 20-60 active users.
  • Built and managed Asterisk VoIP PBX systems that combined Analog/POTS, T1 and SIP/IAX2 circuits, including multiple successful migrations to 100% VoIP.
  • Zimbra Collaboration Suite, including migrations and upgrades.
  • Webserver and database engines including Apache, MySQL and PostgreSQL.
  • Serviced and repaired embedded & custom-engineered equipment (commercial diesel fuel pumps, and public database search terminals).
  • Brokered communications between management, software development, and systems administration teams, through development and implementation of sharply-improved documentation and communication processes, with a strong influence from ITIL.
  • Began standardizing and documenting naming schemes, equipment labeling, system configurations and builds, and systems monitoring procedures.
  • Initiated and began refining on-call processes and procedures.
  • Established software & hardware inventory processes.

My OpenSourcery biography.

Systems & Technology Administrator, Omnimedix Institute & Rasputin Holdings LLC

Portland, OR. Oct 2006 to Sept 2008

SAGE Level, Senior. Responsible for all organizational IT support needs; management of entire infrastructure (firewalls, routers, switches, servers, desktops, & their services). Responsible for over 30 production servers (80% in colocation) under a 24/7/365 99.9% availability plan: 23 Linux, 5 Windows, 2 Mac OS 10.5 & an Asterisk phone system. Primary accomplishments include:

  • Designed two, 50-node, hot/hot datacenters to meet 99.999% service availability needs.
  • Significantly improved personal skills with Mac OS X, though daily management of OS X desktops and servers
  • Designed, implemented, & managed a multi-tiered enterprise-level backup
  • Established & implemented standardized naming schemes, system configurations, & software/hardware inventories
  • Implemented 125 phone number Asterisk PBX, using both PRI and VoIP/SIP trunking (with both soft & hard VoIP phones)
  • Processed over 200GB of data, through manual and automated means, to meet organization's legal/eDiscovery obligations

Senior Systems Administrator & Information Security Specialist, Yoshida Group

Portland, OR. June 1999 to Sept 2006

SAGE Level: Senior (since October of 2001). Responsible for over 70 production servers (95% were in colocation or remote offices): 4 SCO, 54 Linux, 10 NetWare, 1 Solaris, 3 Windows servers, & 2 Tadiran phone systems, across 4 international, and 9 domestic (4 metro) offices, which were supported 24/7 under a 99.9% availability plan. Primary accomplishments included:

  • Developed, audited & implemented IT security policies
  • Key team member during four mergers & acquisitions between January 2002 to September 2006
  • Provided 24/7 infrastructure-level support for all offices, & 3rd-tier support for Windows NT4/2000/XP users
  • Mentored & supervised one junior-level systems administrator (training, salary, performance reviews, etc.) from Nov 2003 to Sept 2006
  • Managed overall systems documentation, performance, & resource allocation of all LAN & WAN infrastructure (firewalls, routers, switches, servers and their services), DNS & email services for 32 domains (hostmaster & postmaster roles).
  • Migrated company from GroupWise to Cyrus IMAP, from private T1s to a mesh VPN, & from NetWare to Samba/SMB file servers. Designed & implemented anti-spam system, system-wide centralized backup, & ZENWorks environment.

June 1999 to October 2001: Team administration (the Senior System Administrator and myself) of systems in 7 domestic (2 metro) and 2 international offices: 3 SCO, 3 Linux, 1 Solaris, 17 NetWare servers, a GroupWise system & a Tadiran phone system. As the sole backup to the senior systems administrator, I often shadowed his duties, and was also primarily responsible for:

  • Established & implemented software/hardware inventories
  • DNS & email services for 12 domains, webmastering 5 websites
  • Developed & implemted a standardized desktop environment using ZENWorks
  • Workday helpdesk support for Windows NT4/2000/XP in a NetWare environment, 24/7 on-call 3rd -tier support

Lecturer/Teacher, Portland & Mount Hood Community Colleges (PCC & MHCC)

Portland, OR. November 1999 to current

Lectured, by invitation, as an industry professional in networking technologies classes (approximately fourteen sessions). Primarily discussing WAN technologies, networking protocols, job hunting techniques, information security, system virtualization (cloud-computing), operating systems, and system administrator's general duties.

Presenter, ITEC Convention

Portland, OR. 1999 & 2004

  • 2004: Systems monitoring; using Nagios & Smokeping to improve services
  • 1999: VMWare technology; getting Linux & Windows to co-exist

District Computer/PBX Technician, Parkrose School District

Portland, OR. February 1996 to June 1999

SAGE Level: Junior. Primarily responsible for development & maintenance of NetWare 4.11 network for the school district, provided computer support & repair for approximately 300 workstations that serviced just above 2,000 users (students, administrative and certified/teaching staff). Repaired & upgraded software & hardware. Developed complete NAL/ZENWorks implementation. Managed information services interns from June 1997 onwards. Trained certified and administrative school district staff on use of applications & computing technologies. Webmaster & district database go-to person. Assisted in management of Tadiran Coral 1 & Coral 3 phone systems. Prior to August 1997 primary responsibilities were limited to supporting only the High School's NetWare 4.11 network for staff & students, (approximately 1500 users & 200 workstations) & developing the district-wide Novell NAL/ZENWorks implementation.

Exhibit Technician, Oregon Museum of Science & Industry (OMSI)

Portland, OR. June 1992 to June 1996

Silly people would break exhibits, I'd fix them (with a smile).

Educational History

City University, Vancouver WA

2005-2006 Bachelor of Science

  • Computer Systems Networking & Telecommunications.
  • Degree not yet completed.

Mount Hood Community College, Gresham OR

1997-2005 Associate of Arts

  • Computer Applications Specialist (part time student).
  • Transferred credits to City University before acquiring degree.

Clark County Vocational Skills Center, Vancouver WA

1995-1997

  • Two-year Electro-Digital Technologies program.
  • Hewlett Packard Total Quality Commitment training.

Certifications

  • SAIR GNU/LINUX LCP
  • August 2000 Cisco CCNA, July 2001
  • Certified NetWare Administrator (CNA) 4.x, April 1997

Professional Affiliations

PANUG (www.panug.org)

1999 - 2008

  • President & board member, 2000-2004
  • Occasional presenter

BizNix (www.biznix.org)

1999 - 2008

  • Founding member
  • Occasional presenter

SAGE (www.sage.org)

2004 - present

  • SAGE is a USENIX special interest group for systems administrators.

Personal Interests & Hobbies

  • Group & Solo Randonneuring (long distance cycling) Within Oregon & Washington (since November 2007)
  • Argentine Tango Dancing (2-10 hours/week) Within three states and seven countries (since July 2003)
  • Mechanical & Electrical Engineering (since 1990), personal equipment includes CNC, lathe, etc…
  • Homeowner & landlord (two rental units & local coordination responsibility of another eight rental units) Portland, OR (since July 2002)
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