Karsten Tinnefeld
Senior Project Manager, Quality Representative
Dortmund, North Rhine-Westphalia, Germany
Summary
👤
Senior🎓
Top SchoolKarsten Tinnefeld is a senior project manager and quality representative at adesso SE with over two decades of experience in Java Enterprise development, architecture, and large e-commerce delivery. He leads multi-vendor teams of up to 25 people, specializing in content management and enterprise application integration while owning ISO 9000–aligned quality processes. His background combines academic training in algorithms and optimization with hands-on roles from programming to research assistance, enabling a pragmatic approach to requirements analysis and software quality assurance. An occasional open-source maintainer, he has contributed bug fixes and core library maintenance to docx4j, demonstrating attention to interoperability and robustness in document-processing code. Based in Dortmund, he balances technical depth with strong communication and process stewardship across projects.
12 years of coding experience
5 years of employment as a software developer
Diplom-Informatiker (equiv MSc Computer Science), Efficient Algorithms and Complexity Theory, Operations Research and Optimisation, Graphical Systems, Diplom-Informatiker (equiv MSc Computer Science), Efficient Algorithms and Complexity Theory, Operations Research and Optimisation, Graphical Systems at Technische Universität Dortmund
English, German
Stackoverflow
69reputation
24kreached
2answers
0questions
Github Skills (13)
debugging10
debug10
openxml10
javas10
lib10
java10
file-handling9
windows6
underscorejs6
internet-explorer6
jquery6
environment-variables6
cygwin6
Programming languages (11)
Github contributions (5)
plutext/docx4j
Jun 2013 - Jul 2013
JAXB-based Java library for Word docx, Powerpoint pptx, and Excel xlsx files
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 commits in 1 month
Contributions summary:Karsten primarily focused on fixing compilation errors and addressing issues within the `ZipPartStore.java` file, suggesting involvement in core library functionalities. They also contributed to a merge of the master branch, indicating a role in code integration. Furthermore, the user addressed an NPE, demonstrating debugging and maintenance skills within the context of the library's data handling. These commits are aligned with the library's purpose of processing Word, PowerPoint, and Excel files.
xlsxjava-librarypowerpointdocxxlsx-files
tinne/spring-hateoas
Jun 2015 - Oct 2020
Clone of Spring HATEOAS to provide some patches
Contributions:3 PRs, 16 pushes, 3 branches in 5 years 5 months
spring-bootspringpatcheshateoasspring-hateoas
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