Eric van Gyzen

eric-resume@vangyzen.net
https://www.vangyzen.net/

Experience

Dell

Senior Principal Software Engineer, Infrastructure Solutions Group
August 2011 – present
Eden Prairie, Minnesota, US

• OS technical lead for FreeBSD-based storage products
  • Storage Center (2011–2018)
  • PowerScale (2018–present)

Highlights

• continuously integrate newer FreeBSD code
• prototype a port of Storage Center to Linux
• prototype a converged SAN+NAS, with a Linux-based NAS in bhyve
• wrote a userland mutex from scratch, for performance
• automated boot disk repartitioning during upgrades
• diagnosed complex concurrency issues, such as a bug in the kernel's arbitration of contention on userland PI mutexes (FreeBSD bug 198014)

FreeBSD

Committer
March 2015 – present

I commit changes to FreeBSD: an open-source Unix-like operating system. Most of my contributions are improvements and bugfixes from my current employer (Dell), although I dabble in a variety of areas in my spare time.

McAfee, Inc. (acquired Secure Computing Corporation)

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

• full-stack software development for a FreeBSD-derived firewall appliance
• administer "dog food" firewalls, build servers, and lab infrastructure
• diagnose customers’ issues and deliver software solutions

Features Implemented

• High Availability for IPv6
  • monitor interface status
  • manipulate interface addresses during failover
  • track session states in the kernel packet filter and replicate to the peer
• NAT and redirect for IPv6 in the kernel packet filter
• single sign-on in the kernel packet filter
• advanced application policy engine for userland proxies

Rosemount, Inc.

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

• administer Sybase databases and Solaris and Linux servers
• develop web and Windows apps for data acquisition and reporting

Duke University Statistics Department

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

• solely responsible for the development and management of the department’s computing system, mainly consisting of FreeBSD/Linux workstations and servers
• work with faculty and students on all computing problems
• manage the department’s computing budget
• collaborate with peers at the school and University level

Eye Integrated Communications (web and graphic design)

Part-time Systems Administrator and Programmer
January 2000 – March 2001
Greenville, North Carolina, US

• administer Linux servers, workstations, and Cisco router
• develop database-driven e-commerce sites using PHP and MySQL

Sumitomo Electric Lightwave

Full-time IT Intern
May 1999 – December 1999
Research Triangle Park, North Carolina, US

• install and administer a Linux NAT firewall
• administer Windows NT servers and clients
• support end-users
• troubleshoot network issues

Internet of Greenville (regional dial-up ISP)

Part-time Technical Support
September 1997 – March 1999
Greenville, North Carolina, US

• manage user accounts
• support end-users
• set up a Linux server for automated backups

Education

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