Eric van Gyzen

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

Experience

Dell Compellent

Software Development Engineer
August 2011 – present
Eden Prairie, Minnesota, US

• developer on the OS team for a SAN storage array based on FreeBSD
• develop and maintain the application integration/abstraction layer for the OS and hardware platforms
• diagnose issues with concurrency/threading, performance, etc.
• resolve issues in FreeBSD and contribute patches back to the FreeBSD project when appropriate
• port the product to new hardware platforms
• integrate and maintain third-party software in the product
• develop and maintain debugging tools and facilities
• facilitate migration to Git from other SCM systems

McAfee, Inc. (acquired Secure Computing Corporation)

Senior Software Engineer, Firewall Engineering
April 2006 – August 2011
Saint Paul, Minnesota, US

Responsibilities

• design, implement, test, and debug software using the C, C++, and Python languages for a FreeBSD-derived, application-layer firewall — McAfee Firewall Enterprise (formerly Sidewinder)
• monitor security advisories that affect the product; respond as necessary
• administer two production firewall clusters, often used for beta-testing pre-releases
• administer build servers and infrastructure (FreeBSD, VMware ESX, Solaris)
• create and maintain SCM database and tools based on PostgreSQL and CVS
• diagnose customers’ problems with our firewall product and develop code to solve them
• creatively configure lab environments in order to replicate customers’ problems
• debug kernels and user processes, interactively and postmortem
• work on a variety of system areas: kernel network stack (from NIC drivers to sockets), proxies, High Availability (clustering), policy engine, audit, configuration, and more
• document processes and develop tools to improve my team’s efficiency
• provide 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, technical writers, 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 Intern
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

Technical Support
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, C++, Python, Unix shells & utilities, Java, Perl

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

• Git, Subversion, CVS, BSD make

• Apache, BIND, CUPS, Dovecot, ISC DHCP, Kerberos, NFS, NIS, OpenSSH, Postfix, PostgreSQL, MySQL, 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