Josef Schlehofer
Instruktor Skupinových Lekcí at FORM FACTORY fitness center
Prague, Prague, Czechia
Summary
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RockstarJosef Schlehofer is an embedded systems and DevOps engineer with 11 years of experience delivering and maintaining OpenWrt-based firmware and packages, including significant contributions to high-profile projects like the openwrt/openwrt and immortalwrt repositories. At CZ.NIC he drove Turris OS releases, rebased kernel patches, and managed upstream integration while supporting users and improving CI-driven build pipelines. He blends hands-on device tree and driver work with package maintenance and security backports, demonstrating a pragmatic focus on reliability and deployability. More recently he combined technical leadership as a deploy manager with community-facing roles and even teaches indoor cycling, signaling strong communication and team motivation skills beyond pure engineering. An active GitHub maintainer, he’s comfortable across the stack—from kernel and firmware tweaks to packaging, CI, and post-release support.
11 years of coding experience
7 years of employment as a software developer
English, Czech, Slovak
Github Skills (47)
git10
python10
package-management10
embedded-linux10
patch10
firmware10
kernel-module10
c1110
linux-kernel10
networking10
security10
c1710
kernel10
gpio10
openwrt10
Programming languages (19)
Github contributions (5)
openwrt/packages
Jul 2018 - Jan 2023
Community maintained packages for OpenWrt. Documentation for submitting pull requests is in CONTRIBUTING.md
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:1598 reviews, 1216 commits, 1953 PRs in 4 years 7 months
Contributions summary:Josef primarily updated and maintained packages within the OpenWrt repository. Their contributions included updating software versions (like youtube-dl, golang, zabbix), integrating new Python3 variants, adding dependencies, and patching configurations. They also addressed security vulnerabilities by backporting security patches. Furthermore, the user demonstrated DevOps skills by managing dependencies, improving packaging, and updating CI configurations.
openwrt
openwrt/openwrt
Mar 2019 - Jun 2026
This repository is a mirror of https://git.openwrt.org/openwrt/openwrt.git It is for reference only and is not active for check-ins. We will continue to accept Pull Requests here. They will be merged via staging trees then into openwrt.git.
Role in this project:Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:154 reviews, 128 PRs, 497 comments in 7 years 4 months
Contributions summary:Josef primarily contributes to the OpenWrt project, focusing on adding support for various hardware components, including drivers and firmware for network devices. Their work involves integrating new hardware, updating firmware, and patching existing drivers to improve functionality and address specific hardware issues. The user demonstrates expertise in device tree configuration and adapting the operating system to support various embedded devices and network technologies. The contributions also enhance the capabilities of existing hardware components.
openwrt
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