Eric van Gyzen

eric+resume@vangyzen.net
http://www.vangyzen.net/
US Citizen

Experience

McAfee, Inc. (acquired Secure Computing Corporation)

Senior Software Engineer, Firewall Development
September 2008 – present
Saint Paul, Minnesota, US

Responsibilities

• design, implement, test, and debug software using the C and Python languages for a FreeBSD-derived, application-layer firewall — McAfee Firewall Enterprise (Sidewinder)
• monitor security advisories that affect the product; respond as necessary
• administer two production firewall clusters, often used for beta-testing pre-releases
• administer FreeBSD build servers
• continue most of the responsibilities of my previous position on the Firewall Support team (below)

Tasks

• improved the firewall’s IPv6 support in packet filtering, High Availability, and interface monitoring
• integrated the firewall with other McAfee products
• improved the firewall’s resiliency to attacks against the TCP protocol
• integrated upstream improvements to the base operating system (FreeBSD)

Secure Computing Corporation

Senior Software Engineer, Firewall Support
April 2006 – September 2008
Saint Paul, Minnesota, US

Responsibilities

• diagnosed customers’ problems with our Sidewinder firewall product and developed code to solve them
• creatively configured lab environments in order to replicate customers’ problems
• debugged kernels and user processes, interactively and postmortem
• worked on a variety of system areas: kernel network stack and packet filter, proxies, High Availability (clustering), policy engine, audit, configuration, and more
• administered a production firewall cluster, often used for beta-testing pre-releases
• documented processes and developed tools to improve my team’s efficiency
• provided frequent summary reports and occasional detailed reports for notable issues

Skills

• quickly digest countless lines of code written by many other developers in multiple languages and styles
• find needles in haystacks of data: network traffic captures, firewall audit logs, configuration files and databases
• dissect problem descriptions and diagnostic data in order to distinguish critical details from incidental facts
• communicate with a wide variety of stakeholders: customers, technical support, other engineers, testers, and management
• quickly assess and manage a variety of changing priorities

Rosemount, Inc.

Software Engineer & Database Administrator
June 2005 – April 2006
Chanhassen, Minnesota, US

• administered Sybase databases and associated Solaris and Linux servers
• developed web- and Windows-based applications for production automation, data collection, and reporting

Duke University Statistics Department

Senior Systems Administrator
June 2001 – May 2005
Durham, North Carolina, US

Responsibilities

• solely responsible for the development and management of the department’s computing system, mainly consisting of FreeBSD/Linux workstations and servers
• interacted as a colleague with faculty and students to solve computing problems of all shapes and sizes
• managed the department’s computing budget; made all computing purchasing decisions
• worked with peers at the school and University level to identify, develop, and implement best-practice solutions to demonstrated and predicted needs

Tasks

• migrated workstations from Tru64 and FreeBSD to Linux (Fedora/RHEL) to facilitate integration and collaboration with other departments and the University
• developed scripts to automate countless tasks, such as workstation installation, system monitoring, and data processing
• modernized several key services, such as NIS to Kerberos, BSD lpr to CUPS, and sendmail to Postfix
• integrated SpamAssassin with the department’s email system
• maintained backups of critical filesystems
• ensured system security through monitoring, patching, and firewalling
• many more…

Eye Integrated Communications

Systems and Network Administrator, Programmer
January 2000 – March 2001
Greenville, North Carolina, US

• administered Linux servers and workstations
• configured and monitored Cisco router
• assisted in the development of database-driven e-commerce sites using PHP and MySQL

Sumitomo Electric Lightwave

Information Systems Co-op
May 1999 – December 1999
Research Triangle Park, North Carolina, US

• installed and administered a Linux NAT firewall
• configured and administered Windows NT servers and clients
• investigated and solved problems reported by users
• performed general network troubleshooting

Internet of Greenville

Assistant Technical Support Manager
September 1997 – March 1999
Greenville, North Carolina, US

• managed user accounts
• supported users via telephone and email, as well as in person
• set up a Linux server to perform automated network backups

Education

BS in Computer Science, May 2001
East Carolina University
Greenville, North Carolina, US

Skills

• FreeBSD, Linux (Fedora/RHEL), VMware ESXi, Windows XP, Solaris

• C, Python, Unix shells & utilities, C++, Java, Perl

• HTML, XML, CSS, SQL, PHP, JavaScript

• Subversion, CVS, BSD make

• Apache, BIND, CUPS, Dovecot, ISC DHCP, Kerberos, MySQL, NFS, NIS, OpenSSH, Postfix, OpenLDAP, Samba, Sendmail

• IPv4, IPv6, ARP, NDP, TCP, UDP, ICMP, SSL, HTTP, DNS, SMTP, FTP, Sun RPC

• McAfee Firewall Enterprise (Sidewinder), BSD pf, tcpdump, Wireshark