Maximilian Bosch
Senior Software Engineer at secunet Security Networks AG
Karlsruhe, Baden-Württemberg, Germany
Summary
🤩
Rockstar🎓
Top School
Top expert inOpen Source Software Development and Security
Maximilian Bosch is a Senior Software Engineer with 11 years of experience building and operating production systems, currently focused on secure infrastructure at secunet after running application operations for Flying Circus on a NixOS-based platform. He combines deep systems and DevOps expertise with backend engineering, contributing to critical open-source projects such as Nix, Hydra, Home Manager and Doctrine ORM to improve packaging, build reliability and API behavior. Known as a NixOS maintainer and “software archeologist,” he excels at digging into legacy code and subtle edge cases—from IPv6 handling in nix to build-job serialization in Hydra—to make systems more robust and debuggable. He brings practical consulting experience from Mayflower and a habit of exploring technical rabbit holes in his spare time, often emerging with small but impactful fixes across tooling and developer ergonomics. Based in Karlsruhe, he pairs a pragmatic, security-minded approach with a curiosity-driven engineering style and regular contributions to the Nix ecosystem.
11 years of coding experience
11 years of employment as a software developer
Abitur, Abitur at MaximiliansgymnasiumInformatik, Informatik at Karlsruhe Institute of Technology (KIT)
German, English
Github Skills (51)
git10
c-language10
object-mapping10
nix10
symfony-bundle10
testing10
configuration-management10
nixos10
home-manager10
perl10
networking10
http-status-code10
declarative-programming10
lang10
php10
Programming languages (31)
Github contributions (5)
NixOS/hydra
Jul 2018 - Nov 2022
Hydra, the Nix-based continuous build system
Role in this project:
Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:19 reviews, 32 commits, 48 PRs in 4 years 5 months
Contributions summary:Maximilian primarily contributed to the Hydra build system, focusing on fixing issues related to build job evaluation and data serialization. They addressed maintainer resolution in the Nixpkgs integration, ensuring compatibility with evolving data structures. Further contributions involved serializing data as JSON and fixing build processes against newer versions of Nix. The user also worked on the GiteaStatus plugin, implementing and improving the integration with Gitea for status updates.
nixoscontinuoushydrabuild-system
NixOS/nix
Oct 2017 - Jul 2022
Nix, the purely functional package manager
Role in this project:Back-end Developer
Back-end DeveloperContributions:56 reviews, 85 commits, 86 PRs in 4 years 9 months
Contributions summary:Maximilian primarily contributed to improving the Nix package manager's codebase, focusing on enhancing the user experience and fixing various issues related to the `nix search`, `why-depends` and `fetchGit` commands. They also implemented fixes for handling scoped IPv6 addresses and improved the `builtins.fromJSON` function and `nix-repl` to handle errors more effectively. The user's contributions included code refactoring, output format improvements and bug fixes across multiple areas of the project.
functional-programmingnixosdeclarative-languagec-plus-pluspackage-manager
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