The most current, and recent, edition of my résumé is always available on this page.
For the latest info on how to reach me, please check out: http://www.tocici.com/aboutus.html
Some letters are available via my LinkedIn Profile 1), others are available by request.
“…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)
An experienced network and systems engineer with exposures spanning across both public and private sectors.
Professional portfolio includes Google, Microsoft, Adobe, Nike, Sony, NWEA, The Yoshida Group, OIA, Northwest Information Services, RenTrak, and various Pacific Northwest city, tribal, and county government agencies.
Continue to successfully introduce cultures embracing kaizen principals; continuous processes improvement. Which enables an organization to rapidly assimilate new technologies, strengthen inter-departmental communications, and further hone a competitive edge.
Past projects include enabling organizations to successfully:
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) |
12 | Auditing security of information systems; developing business policies and processes; managing linux workstations |
14 | 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 |
15 | Managing T1, analog & VoIP/SIP/IAX2 telephony solutions (5 years with VoIP); domestic & international business travel |
16 | Engineering & managing virtual and cloud computing environments, including XEN, ZEN, OpenVZ and VMWare GSX, ESX, Server & Workstation |
17 | 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 |
21 | Use & administration of general PC (x86) & Apple Macintosh hardware. (up to forty-eight processor cores) |
YEARS | EXPOSURE AND EXPERIENCE LEVELS AS INDICATED BY YEAR-RANGE OF EXPERIENCE |
---|---|
2-4 | Linux Terminal Server Project (LTSP) |
4-6 | Zimbra, WebCalendar, Mozilla Calendar, Oracle RAC, WebLogic, Sybase, AoE NAS |
6-8 | puppet (centralized configuration management), native IPv6 routing, BGP for IPv4 & IPv6 dual-stacked networks, DDoS mitigation, MS-SQL, XEN and ZEN, Amazon EC2/AWS, SAS SAN, Mac OS X (10.3-10.9), wireless (WiMAX), Bugzilla, subversion, FiberChannel SAN2), SCO OpenServer 5, GroupWise, BorderManager, ZENWorks, MS Access, Progress, Informix |
8-11 | Apple iCal, NeoOffice, OpenVZ, Blade servers3), Telephony (VoIP, SIP/IAX2, Asterisk), Wiki (Twiki, MoinMoin, DokuWiki), NetWare 3.x-5.x, Solaris 8-10 (Intel & Sparc), Zimbra, OpenLDAP, Novell's NDS/eDirectory, Office 97 & 2000 |
11-15 | Linux (Ubuntu), Linux (Debian, RedHat, SUSE & Slackware), MAC OS 7 & 8.5, Windows 2000/XP, 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, MySQL, PostgreSQL, XMPP/Jabber, SSL, S/MIME, PGP, Squid Proxy, Ethereal, VMWare, wireless (WiFi), Nagios, Smokeping, MRTG/SNMP, RequestTracker, mailing lists (MailMan & home-grown), Samba/SMB, IP QoS, IPv4 routing (RIP, BGP, OSPF); mesh, PtP & star topology VPNs (IPSec GRE/IKE & BorderManager), IPv6 Tunneling, MySQL, PostgreSQL, LAN & WAN IPX & IP tunneling (IPSec & IPX-tunnel), NetWare/NCP, DOS 6.22/7, Windows 3.11/95/NT4, WaveLAN in switched & routed networks, ISDN, ARCServe, Adtran, & 3Com equipment, Tadiran Coral 1 & 3 PBX |
15+ | LAN, MAN, WAN environments. DHCP (ISC, Cisco, Novell), NAT, IP firewalling, perl, Unix shell (BASH, sh, ksh), awk, sed, PHP, C, C++, SQL, HTML, JavaScript, Linux (Debian & Slackware), wired & wireless ethernet, T1, Frame Relay (PtP & PtMP), DSL (consumer), Cisco & HP networking equipment, data-center rack-mount environments |
Portland, OR. January 1995 to Present
Specializing in systems automation, virtualization, documentation, integration, training and design.
Spanning hundreds of physical and virtualized TOCICI owned and managed assets. Providing hosting, monitoring & management of:
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:
My OpenSourcery biography.
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:
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:
SAGE Level: Intermediate, 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:
Portland, OR. February 1996 to June 1999
SAGE Level: Junior, September 1997 to June 1999. Primarily responsible for development & maintenance of NetWare 4.11 network for the school district, while providing computer support & repair for approximately 300 workstations that serviced just above 2,000 users (students, classified and certified/teaching staff).
SAGE Level: Novice, 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 what we later deployed as a district-wide Novell NAL/ZENWorks implementation.
Portland, OR. June 1992 to June 1996
Silly people would break exhibits, I'd fix them (with a smile). Scope of work included wielding a soldering iron and small-parts tools, while leveraging low-level diagnostic equipment such as multimeters, frequency generators, sound processors, and oscilloscopes.
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.
Portland, OR. 1999 & 2004
1999 - 2008
1999 - 2008
2004 - present
2005-2006 Studied: 110 credit hours4) completed towards Bachelor of Science in Computer Systems Networking & Telecommunications
1997-2005 Studied: Associate of Arts in Computer Applications Specialist Program
1995-1997