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Achievement: YOLOAchievement: QuickdrawAchievement: Pull Sharkx2Achievement: Pair ExtraordinaireAchievement: Arctic Code Vault Contributor

Achievements

Achievement: YOLOAchievement: QuickdrawAchievement: Pull Sharkx2Achievement: Pair ExtraordinaireAchievement: Arctic Code Vault Contributor

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jenspapenhagen/README.md

Jens Papenhagen

Java Full Stack Developer. Most repositories are private and used for testing, experimentation, or internal projects.

About Me

I am a software developer with a strong focus on Java backend development and microservices. I work professionally as a full stack developer and use GitHub to explore new technologies, build small services, and prototype ideas. My public repositories mainly reflect experiments, utilities, and proof-of-concepts rather than polished products.

Location: Hamburg, Germany

Infos

Recent Activity

  • Experimenting with Quarkus-based microservices for lightweight Java backend services
  • Maintaining small utility projects for CI/CD and automation
  • Exploring AI and ML workflows using Python
  • Playing aroung with Kotlin and Spring AI
  • Refining personal tooling and internal proof-of-concept services
  • Personal open-source experiments and tooling
  • Small, focused services demonstrating backend concepts and ideas

Concepts

  • Microservice architecture
  • Backend service design
  • API-driven systems
  • Experimentation and prototyping

DevOps & Tooling

  • GitHub Actions
  • Docker
  • Linux-based development environments

Frameworks & Platforms

  • Quarkus
  • RESTful APIs
  • Maven

Open Source Maintenance

maintain toon-java, the official Java library implementing the TOON (Token-Oriented Object Notation) format. The library provides:

  • Encoding and decoding of Java objects to/from TOON
  • Encoding and decoding of JSON to/from TOON
  • excellent Testcoverage
  • Compatibility with Java 17
  • Maven Central distribution for integration Repository: https://github.com/toon-format/toon-java

Contact

My Skills

Top Langs

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  1. upload_infra upload_infra Public

    upload service for documents

  2. level2maggi level2maggi Public

    This is an quarkus mircoservice for Convert the Level of the Saar in Sankt Arnual into count of "Maggi Würze (250g)" - Bottles (default, but can be changed by pathparameter)

    Java

  3. distancemeter distancemeter Public

    This is an quarkus mircoservice for Calculation the Distance in km form one german zipCode to another zipCode

    Java

  4. pigmess pigmess Public

    Online Calucator for the boardgame Schweinerei

    Java

  5. image-captioning image-captioning Public

    playing around with image-captioning model and make it prod ready

    Python

  6. maven-get-version-action maven-get-version-action Public

    Forked from PERES-Richard/maven-get-version-action

    GitHub Action to get the Maven version of a pom.xml file using mvn evaluate

    Shell 2