Scott Ullrich
Founder at nfSensei
Louisville, Kentucky, United States
Summary
👤
Senior🎓
Top SchoolScott Ullrich is a seasoned engineering leader with 17+ years of experience in networking, systems, and infrastructure, now directing AI infrastructure and systems at TogetherWith. A lifelong hacker who cut his teeth on Commodore and Amiga machines, he brings deep TCP/IP and multi-platform expertise (FreeBSD since 1995, Linux since 1996) and fluency in half a dozen programming languages. As a co-creator of pfSense, Scott helped build one of the world’s most widely deployed open-source security platforms and continues to contribute to its core and package ecosystems. He pairs hands-on backend and DevOps skills with strategic IT leadership developed across roles from Director of Information Systems to VP of IT. Based in Louisville, he blends practical low-level troubleshooting (“yes, I can fix your network”) with a forward-looking focus on Go, cloud, AI, and scalable systems.
17 years of coding experience
30 years of employment as a software developer
N/A
Github Skills (17)
freebsd10
firewall10
openvpn10
networking10
php10
pfsense10
package-management9
network-configuration9
system-administration9
shell8
sh8
varnish8
script8
scripting8
zip7
Programming languages (11)
Github contributions (5)
pfsense/pfsense-packages
Jun 2009 - Jun 2012
pfSense packages repository
Role in this project:
Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:85 commits in 3 years
Contributions summary:Scott made several contributions related to the pfSense package repository. They primarily focused on adding and configuring features for network security, specifically related to mod_security, OpenBGPD, and DNS. The user also worked on OpenVPN client export configurations, including incorporating zip packages, path corrections, and shared key configurations. Furthermore, the user addressed a bug related to URL mappings in the Varnish cache configuration, and also made improvements related to handling devices for the NUT package.
pfsense
pfsense/pfsense
Jun 2009 - Jun 2012
Main repository for pfSense
Role in this project:Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:233 commits in 3 years
Contributions summary:Scott primarily contributed to the pfSense firewall project by modifying core system files related to package management, networking configuration, and system utilities. They implemented changes that affected the handling of PHP errors, crash reporting, and firewall rule processing. The contributions also included adding hooks for plugins and integrating new features, along with improvements in the user interface and security aspects of the system.
pfsensefirewallfreebsd
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