Dan Christiansen
Senior Software Developer at Salling Group A/S
Aarhus, Central Denmark Region, Denmark
Summary
🤩
Rockstar🎓
Top SchoolDan Christiansen is a Senior Software Developer with 21 years of hands-on experience building and maintaining backend systems, developer tools, and full-stack applications across Java, Python, and JavaScript/TypeScript. Comfortable in both small-company environments and long-term contractual projects, he prioritizes clean, maintainable code and pragmatic improvements that boost developer and user experience—everything from reducing build times to tweaking UI performance. An active open-source contributor, he has made notable fixes and feature additions to projects like Dulwich (pure-Python Git) and MacPorts, demonstrating deep expertise in package management, build systems, and cross-platform issues. Based in Aarhus, Denmark, he thrives on team collaboration and knowledge-sharing and seeks roles that combine daily technical sparring with opportunities to learn and excel.
21 years of coding experience
14 years of employment as a software developer
Bachelor Computer Science, Bachelor Computer Science at Aarhus UniversityGymnasieeksamen Matematik, Gymnasieeksamen Matematik at Risskov Amtsgymnasium
English, Danish, German
Github Skills (36)
unit-testing10
git10
docker10
pytest10
python10
package-management10
test-runner10
configuration-management10
dockers10
package-manager-tool10
command-line10
version-control10
macos10
package-manager10
dulwich10
Programming languages (18)
Github contributions (5)
macports/macports-base
Feb 2017 - Nov 2020
The MacPorts command-line client
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:2 reviews, 6 commits, 10 PRs in 3 years 9 months
Contributions summary:Dan contributed to the MacPorts base by implementing new features such as the 'rleaves' alias and enhancing the 'reclaim' functionality to uninstall unrequested ports, ensuring a more efficient package management process. They also made improvements to the build system by addressing a bash-ism in the configure script. Furthermore, the user tackled an issue related to Xcode builds by modifying the sandbox to handle the /opt/local directory on a separate mount point.
macosxpackage-managermacportscommand-linemacos
macports/macports-ports
Mar 2005 - Jan 2023
The MacPorts ports tree
Role in this project:DevOps Engineer & Package Maintainer
DevOps Engineer & Package MaintainerContributions:67 reviews, 310 commits, 111 PRs in 18 years 1 month
Contributions summary:Dan demonstrates expertise in package management and build processes, evident through updates to existing packages and the integration of utilities. They addressed package updates, including Docker and Mercurial, adjusting configurations and dependencies as needed. Moreover, the user implemented and adjusted build processes for tools like Lima and YQ, integrating features such as documentation and shell completions. They also fixed file ownership issues and patched makefiles related to the installation processes of these tools.
macosxpackage-managermacports-portsportsmacports
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