Pavel Cahyna
Software Engineer at Red Hat
Prague, Czechia
Summary
🤩
Rockstar🎓
Top SchoolPavel Cahyna is a software engineer with nine years of industry experience and a deep background in Linux systems, kernel and network stack development dating back to NetBSD contributions. Based in Prague, he currently engineers resilient infrastructure and recovery tooling at Red Hat, bringing hands-on expertise in GRUB2/UEFI, rsync reliability, and backup integration from his open-source work on Relax-and-Recover. His earlier career as a researcher and PhD in theoretical and mathematical physics informs a methodical approach to numerical simulation, real-time control of tokamaks, and complex system debugging. Pavel combines systems engineering, release engineering and administration skills—ZFS/OpenIndiana, Xen virtualization, Kerberos/LDAP and Windows integration—making him effective across heterogeneous environments. He has a track record of improving robustness and reproducibility in both research and production systems, often tackling low-level problems that uncover subtle reliability issues. Comfortable bridging research and operational teams, he brings a scientist’s rigor to production-grade software and disaster recovery solutions.
9 years of coding experience
8 years of employment as a software developer
Master's degree, Theoretical and Mathematical Physics, Master's degree, Theoretical and Mathematical Physics at Charles University in PragueDoctor of Philosophy (Ph.D.), Theoretical and Mathematical Physics, Doctor of Philosophy (Ph.D.), Theoretical and Mathematical Physics at Charles University
English, Czech, French
Github Skills (11)
system-administration10
sh10
lvm10
rsync10
script10
bash10
shell10
devops10
scripting10
build-automation9
uefi9
Programming languages (10)
Github contributions (5)
rear/rear
Dec 2017 - Jan 2023
Relax-and-Recover - Linux bare metal disaster recovery and system migration solution (cfr. mksysb, ignite)
Role in this project:
DevOps Engineer & Systems Engineer
DevOps Engineer & Systems EngineerContributions:356 reviews, 144 commits, 91 PRs in 5 years 1 month
Contributions summary:Pavel primarily focused on enhancing the build and recovery process of the "Relax-and-Recover" tool. Their contributions include implementing features to control build directory handling, streamlining the handling of GRUB2 UEFI images, and improving the reliability of the boot process. Additionally, the user worked on system administration aspects by adding support for NetBackup integration and improving the overall robustness of the recovery system by fixing several issues related to rsync and file integrity.
metalfreebsdbarebare-metaldisaster
linux-system-roles/kdump
Dec 2017 - May 2021
An ansible role which configures kdump
Contributions:1 release, 22 reviews, 31 commits in 3 years 5 months
ansibleansible-roletowerrolehigh-availability
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