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  • Cracow, Poland
  • 16:30 (UTC +01:00)
  • LinkedIn in/malczuuu

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malczuuu/README.md

👋 Hi, I'm Damian

Java Spring Spring Boot PostgreSQL MongoDB Kafka Docker Kubernetes IntelliJ IDEA Python Kotlin Go GitHub Actions GitLab CI Linux

I'm a backend engineer focused on building reliable, maintainable systems. Most of my work revolves around Java, Spring Boot, and designing APIs that are easy to use and hard to break.

I enjoy making things run smoothly - from automating CI/CD pipelines to tuning services and cleaning up codebases. Day to day, you’ll usually find me in IntelliJ, a terminal, or inside a Docker container.

🛠️ Core technologies

  • Java, Spring Boot
  • MongoDB, PostgreSQL
  • Docker
  • Occasionally: Go, Python, Kotlin

Notable Projects

Here's a list of projects that I'm the most proud of. Not a huge one, but perhaps it will eventually grow 😊.

Read more...

Here are some projects that are not very presentable yet. Perhaps one day 😅.

Libraries

  • jakarta-validation-extensions: A library that adds a few custom jakarta-style annotations and validators. Project was created as a way to learn about publishing to maven-central so I'm not certain about its future yet.
  • pytemple: Python library for simple formatted text generation based on template. Created as a way to learn about using git repositories as PIP dependencies.

Docker Compose Prototypes

Gists

Pinned Loading

  1. problem4j-spring problem4j-spring Public

    Spring integration for library implementing RFC7807

    Java 2

  2. uiot uiot Public

    A prototype of an IoT Telemetry system, presenting microservices communication over Apache Kafka and REST API

    Java

  3. taskbook taskbook Public

    Full-stack, simple issue tracker app with Spring Boot and Angular

    Java 1

  4. iemu iemu Public

    Emulator application for an IoT device working with LwM2M

    Java 3 1

  5. rmqbe rmqbe Public

    RabbitMQ backend for HTTP authorization plugin based on MongoDB

    Go

  6. composes composes Public

    Various docker-compose.yaml drafts used for local development