Cornelius Schumacher
Open Source Steward at DB Systel GmbH
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolCornelius Schumacher is an Open Source Steward and seasoned software leader with 26 years of experience helping organisations adopt, contribute to, and govern open source software from Berlin. He blends deep engineering roots—early work on Linux distribution tooling, build systems and cloud platforms—with strategic stewardship at DB Systel and SUSE, where he led open source policy, OpenChain certification, and product teams building Cloud Foundry/Kubernetes solutions. A long-time Free Software advocate, former president of KDE e.V., and frequent conference speaker, he pairs community leadership with hands-on contributions such as technical writing for bitcoin.org and DevOps improvements to the Cloud Foundry BOSH toolchain. Known for turning complex compliance and release challenges into practical workflows, he also brings an uncommon mix of physics-trained analytical thinking and modern storytelling skills from Seth Godin’s workshops.
27 years of coding experience
18 years of employment as a software developer
Seth Godin's altMBADiploma, Physics, Diploma, Physics at Ruprecht-Karls-Universität HeidelbergSTR Certificate Granted, Seth Godin's Akimbo Workshops, STR Certificate Granted, Seth Godin's Akimbo Workshops at The Story Skills Workshop
German, English
Stackoverflow
66reputation
0reached
1answer
0questions
Github Skills (22)
bosh10
docker10
rs10
dockers10
cicd10
release-management10
api-documentation10
automation10
code-documentation10
automations10
release-automation10
documentation10
bitcoins9
bitcoin9
bash9
Programming languages (24)
Github contributions (5)
bitcoin-dot-org/developer.bitcoin.org
Apr 2019 - Feb 2021
Bitcoin.org Developer Documentation
Role in this project:
Technical Writer
Technical WriterContributions:31 commits, 7 PRs, 14 pushes in 1 year 10 months
Contributions summary:Cornelius primarily contributed to the `bitcoin-dot-org/developer.bitcoin.org` repository by updating and refining the developer documentation. Their work included adding experimental status notes, fixing links, and regenerating HTML outputs to reflect the updated structure and content. They also addressed import issues, incorporated devguide summaries, and removed obsolete elements.
p2pblockchaindeveloper-documentationcryptocurrencybitcoin
cloudfoundry/bosh
May 2016 - Dec 2016
Cloud Foundry BOSH is an open source tool chain for release engineering, deployment and lifecycle management of large scale distributed services.
Role in this project:DevOps Engineer
DevOps EngineerContributions:29 commits in 7 months
Contributions summary:Cornelius focused on improving the build and release process for the BOSH project. They implemented a specific version of bundler for consistent builds, and added functionality to skip release promotions, optimizing the release cycle. They also contributed to building and pushing Docker images for the project, while simultaneously integrating the implementation of audit CIS rules.
cloud-foundry
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