Resume
Erik A. Espinoza
erik.espinoza@gmail.com
Skills
• OS – 10 years of Linux, 6 years of FreeBSD, 7 years of Win NT, 6 years of Win 2000 Server & Pro, 5 years of Windows XP, 3 Years of Windows 2003
• Networking - Network design, Firewalls, VPN, Wi-Fi, DMZ, Web Proxy/Caching, CIFS (Windows Networking), NFS, DNS, DHCP, WINS, FTP, VoIP, SIP
• Security - system hardening, security auditing, resource management, troubleshooting, documentation, advanced access control
• Scripting – bash (& friends such as awk, grep, etc), basic perl, Windows Batch Scripting
• App Install and Config - Apache, IIS, Exchange, Coldfusion, MySQL, Oracle
Professional Experience
2003 – Present California Institute of Technology Pasadena, CA
Project: LIGO – http://www.ligo.caltech.edu/
Cluster Technical Lead
• Built & administer 329 node dual core dual opteron Linux Cluster
• Wrote documentation using Internal Wiki
• Coordinate 3 LIGO Sites (MIT, Livingston Observatory, Hanford Observatory) to ensure that the Caltech configuration is closely replicated
• Managed Condor scheduler changes and upgrades
• Internal network security auditing
• Configured environmental and network monitoring using open source utilities
• Wrote management scripts for various administrative tasks
• Built customized rpm’s to configure and deploy customized software
Project: Jet Propulsion Laboratory (NASA) – http://www.jpl.nasa.gov/
Sr. Linux Systems Administrator
• Administered record breaking web servers for Mars Rovers
• Built custom distro based on RHEL source rpms before CentOS was released
• Created infrastructure for high availability web sites (Cassini, Deep Impact, etc)
• Wrote scripts for synchronization of high availability web clusters
• Built & administered Qmail-based mail servers for SDSIO Project
• Wrote and updated usage policy for SDSIO Project (mail use policy, network use policy, etc)
• Built & administered 160 node 64-bit Opteron cluster for data processing
• Installed and Configured networking switches in clusters
• Configured Wi-Fi network & configured Hotspot software to do authentication ala T-mobile hotspot
• Managed TES Project Infrastructure (Oracle Server, Gateways, SAN, Manageable Power Strips, etc)
• Wrote scripts to monitor temperature in data center using TempTrax monitors
2004 – 2006 ForceNetworks, LLC San Francisco, CA
CIO/Sr. Systems Administrator
• Designed networks for four large clients
• Assisted Network Admin in PIX configuration
• Assisted Network Admin in VPN configuration
• Built Layer 7 Filters using Linux
• Migrated various supplemental Windows 2003 Servers
• Configured Windows 2003 Active Directory controllers
• Built Asterisk based VoIP Network
• Built various Qmail based mail servers
1999 – 2002 San Francisco Unified School District San Francisco, CA
System & Network Engineer
• Coordinated and managed technology training program
• Created end user operating policies to ensure high availability
• Responsible for training site personnel to make sites self sufficient
• Coordinated Student Tech Program along with two teachers
• Requirements gathering from many departmental heads and administrators
• Various on-site servers consisting of NT, 2000, Linux, FreeBSD and Solaris
• Mail Systems Management (MS Exchange 5.5, Linux/Sendmail)
• 1500 workstations across various school sites
• Made and deployed standard images for NT Workstation, 95/98 and Mac
Education
Pasadena City College Pasadena, CA
City College of San Francisco San Francisco, CA
References
Available Upon Request