Marek Hulán is a Senior Manager at Red Hat in Brno with 15 years of experience building and operating configuration and lifecycle management systems. He rose through hands‑on engineering roles to leadership at Red Hat, pairing team and delivery management with continued technical contributions. An active open‑source contributor to the Foreman/Katello/Puppet ecosystem, he has worked on OpenID-based SSO, plugin and database support, provisioning templates and Puppet automation that improved production provisioning and security. His earlier work as a Ruby on Rails developer and systems administrator gives him a practical full‑stack/DevOps perspective. With a master’s in IT Security from Masaryk University, he focuses on turning complex infrastructure and security requirements into maintainable, production-ready solutions while still shipping code.
15 years of coding experience
14 years of employment as a software developer
Bachelor's degree, Informatics, Bachelor's degree, Informatics at Masarykova univerzita Fakulta informatiky
A place to share templates for various OSes for Foreman's provisioning
Role in this project:
DevOps Engineer
Contributions:76 commits, 111 PRs, 38 pushes in 5 years 10 months
Contributions summary:Marek primarily focused on modifying and enhancing the kickstart and preseed templates used for provisioning hosts, adding support for features such as Chef bootstrapping, FreeIPA registration, and network configuration. They addressed various bug fixes related to networking, DNS configuration and VLANs. The user's changes impacted the automated provisioning process within the Foreman environment, making it more robust and feature-rich.
an application that automates the lifecycle of servers
Role in this project:
Back-end Developer
Contributions:470 reviews, 687 commits, 943 PRs in 9 years 10 months
Contributions summary:Marek's commits focus on implementing, refactoring, and enhancing Single Sign-On (SSO) functionality within the Foreman application. They've reworked existing SSO implementations for Apache and Signo, introducing a general SSO concept based on the OpenID protocol. They also addressed session expiration issues and API access control, demonstrating expertise in authentication and security aspects of the project. Further contributions cover improvements in the template API that supports reporting.
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