Expert in UNIX & Network Systems Administration with
long term and comprehensive experience. Designed, built &
maintained datacenter environments. Extensive experience with security,
email, dns, provisioning, monitoring, capacity planning, business
continuity and other aspects of datacenter operations.
Employment History
Infrastructure Architect, Operations Manager Philotic/Causes.COM
- Berkeley, CA.
March 2009 - Current
A very small company with a lot of users (30MM+ MAU). Causes is one of Facebook's leading applications. I took responsibility for the entire operations arena as the sole engineer. I launched an effort to acheive order and best practices in the environment. My goal was to reduce outages and improve Reliablity, Availability and Servicability.
Responsible for operating systems provisioning, monitoring, operational
troubleshooting, datacenter tools and services infrastructure.
Built infrastructure including kickstart, puppet, nagios/cacti w/ snmp
Built reliable and scalable mail cluster to handle 30MM mails a day
Migrated services to new public IP block, new load balancer configs
Negotiated specifications and contract for new Datacenter, IP Transit
Senior Unix Systems Engineer Yahoo! Inc.
- Sunnyvale, CA.
March 2007 - February 2009
Member of a small team of Systems Administrators responsible for
Yahoo's global UNIX and DNS systems Administration for Yahoo!
worldwide.
Responsible for operating systems provisioning, operational
troubleshooting, datacenter tools and services infrastructure.
Servers are a mix of FreeBSD and RHEL GNU/Linux on various
x86 platforms from small to very large.
Specialized in Global Traffic Management and
general troubleshooting.
Global Infrastructure Architect (Consultant) Network Appliance, Inc.
- Sunnyvale, CA.
March 2006 - March 2007
Reported to Senior Manager of Global Infrastructure as a member of the
management team.
Review and analyze worldwide
operations
and IT infrastructure in areas such as NOC, systems availability and
performance monitoring, directory services, email, secure remote
access, systems enrollment, OS and Applications provisioning, patching
and Maintenance.
Review and Recommend new processes and toolsets for
comprehensive ITIL integration.
Project Lead for IBM/Tivoli, Opsware
and other key initiatives.
Member of Infrastructure Architecture
Review Board. Reviewed and approved Enterprise Change
Management requests and workflow.
Senior UNIX and Network Systems Engineer (Datacenter Architect) Netblue, Inc.
- Mountain View, CA.
May 2004 - January 2006
Sole systems engineer for rapidly growing internet advertising
company
Started with existing
datacenter operations in 4 ISP Cabinets with ~25 hosts running mostly
Redhat 7.2.
Enhanced security of operations with wide
implementation
of ssh/scp.
Introduced sudo and other methods to restrict and audit
access.
Created an automated NOC utilizing redundant servers with
Nagios, Perfparse, Cacti, NTOP, Syslog-NG & Logwatch for remote
logging & analysis.
Host and services provisioned through Kickstart
and other automated means.
Implemented and Utilized Trac Wiki for
Change Management, SVN for source management.
Automated backups of
infrastructure systems using rsync over ssh.
Implemented network and
server security with bastion hosts, firewalled network access through
host IPTables and Cisco network gear.
Provisioned HDS SAN, ISCI
equipment & various hardware and software RAID schemes.
Programmed
Cisco WebNS for load balancing with persistence & redundancy for
~50 websites and other services.
Provided on call 24/7 NOC support.
Migrated main operations to new datacenter with 6 custom racks in a
cage. At the time of my departure there were over 100 CentOS GNU/Linux
servers in three locations and three additional Systems Engineers who
provide datacenter services which advance key business projects.
Senior Consulting Engineer Apple Computer
- Atlanta, GA.
February 2002 - February 2003
Member of a team providing an overlay of Enterprise UNIX
server expertise to Apple's Educational Sales Field Organization.
Developed and provided training for Apple's systems engineers and
account executives to help them understand and sell Unix servers.
Worked with sales teams to identify and pursue
significant opportunities.
Developed and delivered presentations and
demonstrations to key customers achieving significant success in
demonstrating enterprise capability for Apple's UNIX server products.
Senior Systems Engineer Napster, Inc.
- Redwood City, CA. January 2001 - January 2002
Senior member of Team responsible for design and operations of the
server farm.
Created reliable, high performance web server farm.
Supported large server farm with over 1.7M concurrent users sharing
over 280M files
Daily operational support of infrastructure (nfs,
dns, dhcp, etc...)
Linux systems for website(s), napster servers, various
infrastructure.
Staff Engineer Sun Microsystems, Inc.
- Mountain View, CA. February 2000 - December 2000
Converted from contract to regular position. Accepted
responsibility as Staff Engineer for all aspects of partner software
engineering for Solstice Backup (SBU) product including sustaining
product support and new product development.
Successfully completed
entire major product release lifecycle (front to end) with the release
of SBU version 6.0.
Participated as member of W-team to coordinate
Product development, Customer support, manufacturing and marketing
efforts.
Responsible for all bugs and engineering escalations.
Directed other engineer(s).
Contract Positions Sun Microsystems, Inc.
- Mountain View, CA. February 1996 - February 2000
Lead Engineer. Responsible for management of escalated customer
support issues.
Developed workarounds and product fixes for problems without existing
resolutions. Managed Information necessary to coordinate Product
development and Customer support efforts.
Quality Assurance & System Test Group.Responsible for the
testing of Fibre Channel & SCSI
hardware RAID devices and software including drivers, GUI management
tools, RAID Management software and Veritas Volume Manager/File System.
Authored & Developed Test Plans. Automated procedures through
jumpstart and
rc scripts. Managed group lab.
Lead Quality Engineer to perform system software and hardware
testing for UltraSparc/AX system board for OEMs. Developed and
implemented Test Plans providing 'go-nogo' decisions for product
development and
marketing.
Provided Internet software and hardware expertise to team
developing Internet software and HTML/CGI based administration tools.
Ported and built various packages to be integrated to products. Managed
project lab. Supported Sustaining Engineering for previous product
version.
Senior Systems Engineer Healtheon, Inc.
- Palo Alto, CA. July 1996 - December 1996
Responsible for initial installation and administration of
highly secure and available web site, corporate and development
environments
Installed and configured Gauntlet firewall, Split DNS, NIS with
Automount, ISDN and remote access using PortMaster, RADIUS and SecurID
token
cards.
Procured DLT/Legato tape system for database (Informix), UNIX
and Windows workstations backups and archival.
Worked with Network Engineer to plan and implement network
topology for complex multi server facility utilizing multi-homed hosts,
Cisco
routers and high speed ethernet switches. Renumbered internal networks
and
migrated from ISDN to T1 Internet connection.
Co-Founder & Chief Architect Cornerstone Networks
- Charlottesville, VA. July 1995 - December 1996
Co-Founded Internet Service Provider business.
Designed and
implemented complete system including T1 IP connection, dial-in lines,
dedicated
client networks, accounting and billing interface.
Full services
include DNS,
Web, FTP and Mail services (with Virtual Domain support) for a mixed
consumer and commercial clientele.
Equipment included Cisco routers,
USR modems,
Sparc/SunOS and Pentium/Linux.
Business was subsequently sold to a
telephone company.
Computer Systems Engineer University of Virginia
- Charlottesville, VA.
January 1985 - November 1995 Responsible for datacommunications for Administrative Computing
Services
1994 - 1995 Designed and implemented community network for county
and city government. Project provides Internet access and presence for
regional non-profit and government service organizations as well as
numerous public use facilities in regional library system.
1993 - 1994 The Hopper project. A public access Internet
experiment. (see below;
Turing Project)
1993 - 1993 Special Project, Multicast IP Experiments.
Created multicast router and application platform for real time
audio/video experiments
over MBONE meta-network.
1992 - 1994 Netware Lead Support Engineer; lead group of 6
engineers and technicians
in the management and support of the campus wide 180 server
internetwork. Directly
responsible for 24 servers within computer center facilities. Upgraded
many systems to
3.x.
1991 - 1992 Designed and implemented statewide network for
Continuing Education
Division. Over 250 stations at 7 regional centers were connected with
Proteon
routers and 56Kbps links, and then connected to Internet at UVA. The
Centers used
SNA, Netware and IP protocols.
1990 - 1991 Installed TCP/IP on IBM SYS/370 to provide FTP and
TN3270 services.
1989 - 1990 Designed, implemented and managed 80 station Token Ring
network with Netware file and print servers, 3270 gateway, application
programs (Wordperfect, Lotus, Dbase, etc?)
1988 - 1991 Continued responsibility for rapidly growing VTAM/SNA
network (Now 1250+ nodes).
1987 Began migration to PC based 3270 emulation products.
1986 Responsible for large (750+ node) VTAM/SNA network with local
and remote 3270 terminals and printers.
1985 Responsible for processing daily jobs, input and output.
Designed and implemented new online system for job submission and
review, still
in use as of 2002.