yinyang@eburg.com
Please email for additional contact information.

Seeking a position that will capitalize on my experience developing software and deploying services for BSD and SysV UNIX systems (Linux, FreeBSD, and OpenBSD).

• Strong understanding of Unix system internals
• Experience profiling and optimizing Unix systems and applications
• Experience developing scalable Unix clusters
• Background in network, host, and application level security

Operating Systems: Red Hat Linux, Fedora, Slackware, Windows 2000, Windows XP, Mac OS X
Programming: Bash, SQL, C, C++, Perl, Python, Java, PHP, JavaScript, Lisp
Build tools: make, autoconf, automake
Source management tools: cvs
Email services: qmail, courier, sendmail
HTTP services: apache, roxen, caudium
DNS services: bind
SQL services: MySQL, PostgreSQL
Windows file sharing services: samba
Directory services: NIS, LDAP (OpenLDAP, SunONE Directory Server, Fedora Directory Server)
Network services: IP routing, firewall configuration

• Red Hat Certified Engineer

6/2006 - current
University of Washington, Electrical Engineering Seattle, WA
System Admin / Programmer:
Maintained and developed Linux based infrastructure for department computing.

• Migrated services to more stable Free Software applications, including Fedora Directory Server, Courier MTA, and WildFire.

6/2001 - 4/2006
Real Networks, Inc. Seattle, WA
System Admin / Programmer:
Maintained large base of Linux systems for RealNetworks and developed applications to reduce administrative overhead and routine maintenance tasks.

• Primary administrator of IT communication systems: email, file and printer servers, directory services, intranet HTTP servers, etc.
• On call 24x7 for service issues.
• Developed LDAP directory management application, replacing a large number of separate data interfaces with a single, integrated solution. This interface simplified many of the tasks common among the IT staff such as the maintenance of user accounts, groups, and email aliases. It also granted management access of most data to the users rather than IT staff. This product will be publicly released shortly.
• Developed and deployed LDAP directory for authentication and user directory information throughout the company.
• Developed and deployed scalable, fault tolerant email system to replace aging, fragile infrastructure.
• Implemented "apt" based update software for Red Hat Linux systems, which allowed admins to very easily apply security and bugfix updates to their systems, and sent notices when such updates were available. This greatly decreased the amount of time security vulnerabilities were exposed, and increased the reliability of the update procedure.
• Developed BindConfig, a Python application suite for maintaining DNS zones, as well as various other Python utilities for maintenance of DNS. Suite decreased the incidence of error and simplified the task of updating configs.
• Developed Nessus based network scanner to present security problems to the administration staff, by severity of problem or frequency of vulnerability.

4/1997 - 4/2001
Computer Central Ellensburg, WA
System Admin / Programmer:
While attending college, worked for local business building and repairing PC computers. Quickly promoted to position as administrator of internet service, responsible for managing Cisco, Ascend, and Linux equipment.

• Primary administrator for all ISP services: dial up terminals, RADIUS service, email, HTTP, routers, etc.
• On call 24x7 for service issues.
• Developed and implemented custom applications to manage network access and services.
• Developed CGI applications in C and Perl for customers hosting e-commerce web sites.
• Reviewed source code of software before installing it on our system, as a matter of security policy. Improvements and fixes were submitted back to software vendors; my audits resulted in improvements to commercial products such as uShop and commerce.cgi.
• Responsible for the development of software for maintenance and billing of customers accounts. Result was client/server, SQL based product called ISPd. ISPd replaced previous system composed of several information repositories which were prone to human error and unreliable with a robust, integrated solution. ISPd eliminated the need for weekly information audits, and greatly enhanced our ability to analyze information related to our business.
  ISPd is also in use by other ISP's in various locations inside and outside the USA.
• Managed UNIX system backups.

References are available upon request.