Robin Stumm
Site Reliability Engineer at Input Output (IOHK)
Germany
Summary
🤩
Rockstar🎓
Top SchoolRobin Stumm is a Site Reliability Engineer with 12 years of experience building and automating cloud infrastructure, CI/CD pipelines, and developer tooling, currently at Input Output (IOHK) working on Cardano infrastructure. He combines hands-on DevOps craftsmanship—especially with Nix and cross-platform build automation—with SRE responsibilities like on-call operations and cost optimization. As a frequent open-source contributor, he maintains and extends home-manager modules and has modernized CI workflows for high-profile Cardano repos, improving multi-platform builds and task automation. His background spans freelance engineering and embedded/Java backend work, giving him a pragmatic full-stack perspective on developer experience. Not obvious from the title: he prefers reproducible, declarative systems (NixOS) and explores emerging languages like Zig, reflecting a taste for composable, low-friction tooling.
13 years of coding experience
6 years of employment as a software developer
Bachelor’s Degree, Computer Science, none, Bachelor’s Degree, Computer Science, none at Bonn-Rhein-Sieg University of Applied SciencesAbitur, 2.5, Abitur, 2.5 at Städtisches Gymnasium Hennef
Russian, English, German
Stackoverflow
339reputation
8kreached
7answers
1question
Github Skills (28)
github-ci10
nix10
configuration-management10
nixos10
flake10
dotfile10
home-manager10
cicd10
cardano10
build-automation10
blockchain10
githubaction-workflow10
zsh10
devops9
kakoune9
Programming languages (21)
Github contributions (5)
nix-community/home-manager
Feb 2017 - Sep 2022
Manage a user environment using Nix [maintainer=@khaneliman, @rycee]
Role in this project:
Software Engineer (Focus on User Environment Configuration)
Software Engineer (Focus on User Environment Configuration)Contributions:10 reviews, 16 commits, 25 PRs in 5 years 8 months
Contributions summary:Robin primarily contributes to the `home-manager` repository by fixing configuration errors and implementing new modules for user environment management. They address issues related to evaluation errors within existing modules, like those for `git` and `home-environment`. The user also develops new modules, exemplified by the implementation of the `browserpass` and the `zsh` plugin manager, enhancing the user's ability to customize their system. Furthermore, they refined existing functionalities like the `kakoune` whitespace highlighter and the `broot` integration.
nixnixpkgsdotfilesnixosnix-dotfiles
IntersectMBO/cardano-node
Sep 2022 - Jan 2023
The core component that is used to participate in a Cardano decentralised blockchain.
Role in this project:DevOps Engineer
DevOps EngineerContributions:20 reviews, 10 commits, 16 PRs in 3 months
Contributions summary:Robin focused on improving the CI/CD pipeline for the Cardano node project. They integrated Cicero and Tullia for task management, enhanced Nix configuration for builds, and modernized the CI process to build across multiple platforms. Their contributions included optimizing build processes and updating Tullia to support PRs from forks, demonstrating a focus on automation and build efficiency.
blockchaincardano
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