Josh Poimboeuf - Senior Principal Software Engineer at Red Hat

Josh Poimboeuf

Senior Principal Software Engineer at Red Hat

Davis, California, United States

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Summary

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Rockstar

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Top School

Josh Poimboeuf is a Senior Principal Software Engineer with 13 years of experience specializing in Linux kernel reliability, live patching, and low-level systems engineering. Based in Davis, California, he created and maintains kpatch and co-maintains the Linux livepatch subsystem, authored the livepatch consistency model, and rewrote the x86 stack unwinding framework and ORC unwinder. His background includes deep kernel bringup and debugging on PowerPC embedded SoCs at IBM, contributions to early Docker networking and LXC interfaces, and authorship of the objtool static analysis utility. Known for solving difficult, production-critical kernel issues and enabling no-reboot security fixes, he blends academic rigor (MS in Computer Science) with hands-on systems craftsmanship and several patents-worthy innovations.

13 years of coding experience

12 years of employment as a software developer

Bachelor of Science (BS), Computer Engineering, Bachelor of Science (BS), Computer Engineering at Louisiana State University

Master of Science (MS), Computer Science, Master of Science (MS), Computer Science at NTU at Walden University

Github Skills (14)

c1710

kernel10

assembly10

relocate10

c1110

linux-kernel10

kernel-mode10

migration10

x8610

security10

system-programming9

memory-management9

ppc64le8

powerpc8

Programming languages (5)

ShellC++CGoPython

Github contributions (5)

dynup/kpatch

Jan 2013 - Dec 2022

NOTICE: kpatch is deprecated

Role in this project:

Back-end Developer

Contributions:9 releases, 181 reviews, 819 commits in 10 years

Contributions summary:Josh primarily contributed to the core functionality of the kpatch tool by implementing and improving the dynamic relocation features. They fixed compiler warnings and added the -o flag. Furthermore, the user worked on adding features for incremental patching, and implemented support for the removal of modules. Several commits involved refining the build process and enabling features related to symbol correlation and static call handling, essential for the tool's functionality.

kernelpatchingpatchlinuxlinux-kernel

jpoimboe/kpatch

Jun 2014 - Dec 2022

kpatch - dynamic kernel patching

Contributions:25 commits, 1 PR, 216 pushes in 8 years 7 months

kernel

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