572 S Stephanie Loop – Tucson, AZ 85745- (520) 302-5203
jobs@hoblitt.com
SUMMARY OF QUALIFICATIONS
- An adaptable Systems Administrator with more than a decade of experience in the IT industry
- “Jack of all trades” – An extremely broad skill set that ranges from the data center all the way to the desktop
- Job roles have included: software engineer, webmaster, UNIX host
security, build maintainer, testing guru, general network security, general
systems administrator, network design, data center planning (including
construction), cluster design, VOIP deployment and network monitoring with
intrusion detection - Maintainer of several modules on CPAN and former maintainer of the Parrot virtual machine project
- 24x7x365 operational experience
- Demonstrated ability to work at high altitude (14,000 ft.)
WORK EXPERIENCE
| UNIX Systems Administrator | June 2010 – Present |
National Solar Observatory – Tucson, AZ
- Support the SOLIS telescope on Kitt Peak and the network of 6 GONG telescopes around the globe
- Added 100s of TBs of additional storage in the form of 8U custom built NAS boxes
- Took over an aging IT infrastructure and modernized the data center with technologies like vitalization, HA clustering, DRBD, and 10Gbit/s ethernet.
- Standardized the OS image for production servers (100+ servers) and scientist desktops a single Centos5.x image (kickstarted) and managed via Puppet.
- Participated in the IT planning process for the Advanced Technology Solar Telescope (ATST), which will be the worlds largest solar telescope on Haleakala
I came to NSO specially to modernize an aging IT infrastructure which had not
had a dedicated systems administrator for several years. I initializing
estimated that it would take approximately two years to complete this task and
I am about half way through the revamping process. The modernizations I’ve
implemented have been wide ranging from hardware upgrades like installing
switched PDUs and replacing aging servers with systems that having integrated
BMCs, to the installation of monitoring and management systems, such as Nagios
and Puppet. Academic environments have a tendency to “fall behind the times”
due to erratic funding profiles but via conservative spending, NSO is well on
it’s way to having a modern enterprise computing environment.
| Senior Network Technician | September 2009 – June 2010 |
Login, Inc. – Tucson, AZ
- Manage fiber builds for Metro Optical Ethernet (MOE) installation on client premises
- Manage Asterisk based VOIP services
- Manage client network equipment
- Schedule and supervise HVAC, generator, and electrical systems maintenance at a ~ 2,600 sq. ft. data center
- Respond to customer trouble tickets and after hours emergencies
While at Login, I’ve spent a large percentage of my time managing network
equipment and have added Adtran’s AOS operating system and Juniper’s JUNOS (m20
platform) to my skill base. I’ve also spent a lot of time working on Login’s
ongoing electrical system upgrade to fully convert from a 208V 3PH utility
feed to a 480V 3PH feed. Recently, I’ve been plotting the data from the
E-Mon D-Mon sub meters I oversaw the installation of and generating statistics
for billing from a SQL table base of call logs.
| Information Technology Specialist | January 2002 – August 2004 (Hilo) |
| August 2004 – August 2009 (Honolulu) |
Institute for Astronomy, University of Hawai’i – Honolulu, Hawai’i
- Network “work package manager” for the PS1 project. Designed and installed the network in the PS1 telescope including bringing up both ends of 1GigE connection to Kihei, Maui and deploying an Asterisk PBX
- Responsible for the design and installation of a mixed computation and
storage HPC cluster with 0.8 Petabytes of storage. - Participated in the design, documentation and coding of multiple
scientific libraries and software implemented largely in C99 by a multiple site
team of three to ten members, depending on partner institution staffing levels.
The core library is 108K LoC and total internal software tree is 601K LoC (87%
C99, 9% Perl). - Managed ~ 115 servers.
- Build maintainer for 50+ software packages using the “autotools” for C
code and Module::Buildfor Perl packages - Championed bringing test-driven development (or testing at all) into
packages written in C via the bundling of libtap and a wrapper library of libtapthat I implemented - Extensive development of C and Perl applications using MySQL and
performance tuning of MySQL installations, including over 5K lines of complex
SQL queries and a data set of ~ 175M rows with the design intended to scale
to billions of rows. - Developed a unique user-land object repository (pseudo-filesystem) in C and Perl that’s designed to scale to billions of objects (files) with multiple redundant copies of each object distributed across production HPC cluster
- Developed several RFPs and ran the competitive bidding process for I.T. purchases in the $200K-$300K range
- Built and maintained my own custom Gentoo image and ebuilds tree for
production servers (built with catalyst)
My time was divided between several different hats: System Programmer for the
Pan-STARRS’ Image Processing Pipeline (IPP), PS1 Network Manager (ended in fall
2008), and IPP System Administrator for multiple HPC clusters spread across
three different islands. I gained ample experience planning logistics and
manpower for network and cluster installations at remote work sites on the
summit of Haleakala and at the Maui High Performance Computer Center (MHPCC).
My largest single job function was designing and implementing applications in C
and Perl to support the IPP; this included formalized systems engineering
documentation in LaTeX and Doxygen, a thread-safe reference-counting memory
management with back-tracing support, numerous parsers (in C and Perl), a
cluster-wide state-keeping work queue system, and a large petabyte-scale
storage management system.
Institute for Astronomy, University of Hawai’i – Hilo, Hawai’i
- Responsible for I.T. support of the IfA’s facilities on island of Hawai’i for ~ 2.5 years
- Responsible for the Hilo facilities’ network, UNIX/Linux servers/workstations, Windows desktops, and the UH88 telescope’s network
- Supported ~ 65 scientists, technical and administrative staff
- Deployed and maintained a Cisco VOIP network in Hilo with ~ 55 handsets
- Deployed and maintained multiple Cisco PIX firewalls
- Supported telescope operations at 14,000ft.
- Replaced a dozen Cisco 2900s 10/100Mbit/s switches handling desktop connectivity with two Cisco 4000 series switches for a total of ~ 300 GigE ports so that all physical ports in the building would be live
- Planned for and supported major projects (NASA’s IRTF telescope, NASA’s
JWST IR detector development, UH 88″ telescope, internal instrumentation
development) - Worked with architects to develop data center and network/telecom wiring
requirements for a new 20,000 sq. ft. facility - Developed web apps and data acquisition software for plotting weather data
from the UH88′s sensor network - Developed the annual Hilo IT budget, in the $100K-$200K range
- Hired and mentored a Jr. Administrator
I was responsible for everything from budgeting and purchasing to end-user
support. Some of my major projects in Hilo included: implementing a Cisco VOIP
network from scratch, deploying Cisco PIXs at three different sites (including
two telescopes on Mauna Kea), design and deployment of a multi-terabyte
archival system, and overhauling internal security measures. A sample of my
more than 20 smaller projects are: gigabit ethernet to the desktop, facility
wide deployment of 802.11b APs in the plenum space, consulting on the
construction of a new facility, development of a weather and industrial data
encoder acquisition system, and overseeing network wiring and electrical
contractors.
| UNIX Systems Administrator | October 2000 – July 2001 |
BBox – Beaverton, Oregon
- One of two UNIX administrators responsible for ~ two dozen production servers
- Responsible for Solaris, Linux, OpenBSD, and NetApp Systems
- Responsible for UNIX host and network security
- Responsible for availability of hosted sites and internal infrastructure
- Managed network border firewalls and intrusion detection
- Perl programming for systems administration, internal and external projects
- Consultant to in-house Developers for design integration
- On-call 24×7
- Built and maintained IPSEC VPNs between data centers
- Administered DNS both internally and for hosting customers
- Generated production control documentation for UNIX systems
- Developed Perl scripts for automatic response to website downtime
At BBox, I reviewed and improved UNIX host security. I participated in the
building of a new high-availability data center and the migration of the
dev/test environment into that data center. The company merged with
Fortix1, now Viawest
2. We went through the process of migrating the
production environment from being co-located to Fortix’s 5,000+ sq. ft. data
center and took over managed services inside that data center.
My official job title was UNIX Systems Administrator but after a few months I
was given the unofficial title of “Security Administrator”. In addition to
my UNIX admin hat, I took on a traditional infosec role; for example,
configuring and monitoring intrusion detection systems and managing VPNs. This
included taking over the Cisco PIX firewalls at Fortix.
| UNIX Systems Administrator (CSci. Dept.) | January 2000 – June 2000 |
| Sept. 1998 – Dec. 1999 (student 499 project) |
Clark College – Vancouver, Washington
- Responsible for Solaris, HP-UX, Linux, and OpenBSD systems
- Administration of network services (HTTP, DNS, DHCP, etc.) and devices
- Managed ~ 2500 user accounts
- Responsible for system security and stability
- Created and maintained all student accounts on a quarterly basis
- Set up automated account creation and deactivation based on student
enrollment saving multiple man weeks at the start of each quarter - Ensured privacy of network by developing and implementing a
stringent security policy - Interacted with faculty and students on a daily basis
I completely reorganized and rewired the Computer Science Department’s network,
including all UNIX systems and network equipment, largely to remove the 10base2
segments. I also coordinated efforts with the campus-wide CIS Department to
achieve better integration with the CS Department. As a guest speaker I
lectured the “Intro to UNIX” course on what it was like to be a Systems
Administrator. The goal was to either help those students choose a career path
or have better interactions in the future with a Systems Administrator as an
end-user.
| Customer Support Engineer | February 1998 – July 1998 |
Stream International – Beaverton, Oregon
- Performed technical support for PCMCIA ethernet and ethernet + modem cards
- Supported product installation and configuration on: MSDOS, PCDOS,
Win3.x, Win9x, WinNT3.xx and WinNT4, OS/2 Warp (3 and 4), MacOS 7.5.3 and above,
Netware 3.1x – 4.xx, SCO UNIX
I worked as part of a telephone support environment dealing with end-user
networking issues on supported 3com PCMCIA networking products. This involved
working with a large range of operating systems and hardware while servicing
laptops and networking equipment.
TECHNICAL SUMMARY
A non-exhaustive list:
- Solaris (sparc, i386), Linux (i386, amd64, sparc, alpha), HP-UX (hppa,
m68k), OpenBSD (i386, sparc), FreeBSD (i386), NetBSD (i386), Cisco PIX OS,
Cisco IOS, Adtran AOS, Junipter JOS, Blade Networks ISCLI - Spanning-Tree, Layer 3 switches, VTP, ISL, etc.
- Cisco Call Manager and Asterisk PBX (phones, gateways, Call Manager, Unity, voice mail)
- Packet Filtering, Monitoring, IDS (Cisco PIX, Checkpoint FW-1, PF,
IPF/IPNAT, Snort, NFR) - Weblogic, Interwoven, Apache, VCS, VxFS, Sendmail, Postfix, Bind, Dhcpd,
NIS, NFS, SSH, Oracle, MySQL (extensive experience), Dovecot, Nagios, Puppet,
etc. - KVM Hypervisor, virt-manager, VT-d/IO-MMU/VFs
- Shell Script (bourne, korn, bash), Perl, Sed, Awk, Expect, XHTML,
CSS, LATEX, CVS, SVN, git, etc. - ANSI C (through C99), C++, MS VB 3-6
- Windows (7, XP, 2K, NT4, 9x, 3x, DOS)
Footnotes:
1http://www.fortix.net/
2http://viawest.com/
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