Jan Schädlich
Freelance Software Developer at Jan Schädlich
Wuppertal, North Rhine-Westphalia, Germany
Summary
🤩
Rockstar🎓
Top SchoolJan Schädlich is a freelance software developer based in Wuppertal with 12 years of hands-on experience building and hardening back-end systems, particularly in the PHP/Symfony ecosystem. He contributes actively to well-known open-source projects—improving Symfony components, enhancing var-dumper debugging support, and strengthening FOSElasticaBundle’s Elasticsearch integrations—demonstrating both deep framework knowledge and attention to reliability. His work spans code, docs, and CI tooling (e.g., adding JUnit reporting and better console output), showing a pragmatic blend of engineering and developer-experience focus. Trained as a Diplom-Informatiker in media informatics, he pairs formal CS foundations with practical contributions that often address subtle edge cases like command return codes, index aliasing, and casters for complex Intl objects.
13 years of coding experience
Diplom-Informatiker (FH), Medieninformatik, Diplom-Informatiker (FH), Medieninformatik at University of applied sciences Osnabrück
German, English
Github Skills (39)
unit-testing10
debugging10
github-ci10
symfony-component10
var-dump10
amazon-elasticsearch10
testing10
component-development10
elasticsearchquery10
junit10
php10
aws-elasticsearch10
symfony10
symfony-ux10
command-line10
Programming languages (6)
Github contributions (5)
deptrac/deptrac
Jun 2018 - Nov 2022
Keep your architecture clean.
Role in this project:
Backend & DevOps Engineer
Backend & DevOps EngineerContributions:1 review, 10 commits, 4 PRs in 4 years 5 months
Contributions summary:Jan primarily contributed to enhancing the project's build and testing infrastructure. Their work includes adding a JUnit output formatter, enabling it in the GitHub Actions environment, and creating tests for its functionality. They also modified the console output formatter and added an option for reporting uncovered dependencies. These changes indicate a focus on improving the project's testing and reporting capabilities within a CI/CD context.
keepphpcodeclimatecleanstatic-code-analysis
symfony/framework-bundle
Nov 2018 - Jan 2022
Provides a tight integration between Symfony components and the Symfony full-stack framework
Role in this project:Back-end Developer
Back-end DeveloperContributions:51 commits in 3 years 2 months
Contributions summary:Jan contributed significantly to the Symfony FrameworkBundle, focusing on improving its functionality and maintainability. Their work includes fixing bugs, such as the ConfigDebugCommand's incorrect status code, and implementing new features, like allowing dots in translation domains and adding an option to the translation:update command. The user also refactored code, like the notifier recipient handling and factory definitions, and added tests, thus contributing to the overall quality and completeness of the project.
full-stacksymfonysymfony-componentphp
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