Stefan Seifert
Project Manager, Product Owner, Interim Manager, Digital Business Consultant at Freelance
Hamburg, Germany
Summary
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SeniorStefan Seifert is a seasoned digital business consultant and interim manager with over two decades of experience delivering product-led projects and driving innovation across enterprise clients such as Audi, BMW, Axel Springer and Deutsche Telekom. He combines hands-on technical work—contributions to well-known open-source projects like Apache Felix and Adobe AEM core components—with strategic roles in product ownership, information architecture and UX. As a freelance project manager since 2007, he repeatedly bridges delivery, quality/test management and digital business modelling to turn complex requirements into usable products. His developer background shows pragmatic backend and QA improvements (notably on Maven tooling and AEM archetypes), which helps him spot latent engineering risks others miss. Based in Hamburg, he is comfortable scaling processes for both agencies and large brands while keeping a craftsperson’s attention to code and configuration details.
11 years of coding experience
English, Italian, Dutch
Github Skills (22)
git10
testing10
apache-felix10
maven-plugin10
java10
javas10
osgi10
junit10
maven10
xml10
aem10
json-parser9
json9
guideline9
jsonp9
Programming languages (13)
Github contributions (5)
adobe/aem-project-archetype
Oct 2018 - Jan 2022
Maven template to create best-practice websites on AEM.
Role in this project:
Back-end & QA Engineer
Back-end & QA EngineerContributions:2 reviews, 10 commits, 12 PRs in 3 years 3 months
Contributions summary:Stefan primarily focused on improving the AEM archetype project by updating dependencies, incorporating unit testing improvements, and enhancing the testing infrastructure. They migrated tests to utilize AEM Mocks, included necessary plugins for Core Components, and refactored test contexts. The user also addressed platform compatibility by refactoring checksum checks and improving the build process.
maven-pluginmaven-archetypebest-practiceadobemaven
mojohaus/versions
May 2020 - May 2022
Versions Maven Plugin
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 reviews, 30 commits, 40 PRs in 2 years
Contributions summary:Stefan primarily contributed to the `mojohaus/versions` Maven plugin, focusing on bug fixes and improvements related to parsing XML files within the project's modules and ensuring version changes are correctly applied. They addressed issues such as handling invalid XML during build processes and resolving potential errors when dealing with non-local parent POM files. Furthermore, the user refactored code to improve the processing of plugin parameters and restored functionality to the output file writing feature.
maven-pluginmavenmojohausjavaversions-maven-plugin
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