Patrick Kelsey
Committer at Various Clients
Pennsylvania, United States
Summary
👤
Senior🎓
Top SchoolPatrick Kelsey is a systems architect and engineer with 15+ years designing high-availability, high-performance embedded and scale-out systems across defense, telecom, aerospace, oil & gas, and supercomputing domains. As a long-time FreeBSD committer and consultant, he blends low-level OS/kernel work, networking and storage expertise, and hardware design to deliver production systems for SIGINT platforms, naval ships, flight simulators, and some of the fastest supercomputers. His career includes building directorless, live-scalable N-way replicating NFS systems and space-optimized B+trees for OLTP engines, demonstrating deep competence in algorithms, advanced data structures, and mathematical performance modeling. Patrick’s hands-on breadth spans 18 processor architectures and 12 operating systems, plus practical experience porting SDKs to esoteric OSes and improving FreeBSD image tooling for embedded boards. He’s equally at home coding kernel drivers as architecting distributed, minimum-latency storage and networking stacks. Based in Pennsylvania, he brings a rare combination of hardware-software fluency and field-proven designs that run in mission-critical environments.
13 years of coding experience
14 years of employment as a software developer
Electrical Engineering, Electrical Engineering at Drexel University
Github Skills (6)
ufs10
bash10
partitioning10
scripting10
image10
freebsd10
Programming languages (7)
Github contributions (5)
freebsd/crochet
Mar 2014 - Mar 2014
Build FreeBSD images for RaspberryPi, BeagleBone, PandaBoard, and others.
Role in this project:
Backend Developer
Backend DeveloperContributions:18 commits in 17 days
Contributions summary:Patrick primarily focused on improving the FreeBSD image build system. Their work included enhancing the ability to generate multiple UFS partitions with varying sizes, allowing for the installation of FreeBSD on a subset of these partitions. Furthermore, the user introduced new functionality related to UFS partition labeling and mounting, while also making the partition handling more uniform within the system. These changes aimed at streamlining the process of building and managing FreeBSD images for embedded systems.
freebsdpandaboardraspberry-pi
pkelsey/libuinet
Apr 2013 - Feb 2017
a library version of FreeBSD's TCP/IP stack plus extras
Contributions:492 commits, 58 pushes, 17 branches in 3 years 10 months
freebsdtcp
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