Hi! My name is Peter 👋

I'm a professional Java developer with 7+ years of experience.

Interests: Algorithms, Containerization, Process Automations

After hours: LEGO, Railway modeling, Polish fantasy literature

Tech Stack 🔧

I mostly work Java, Spring Boot and Jenkins declarative pipelines. In previous years my job was oriented on Java EE.

Projects ⚒️

Recently I concentrate on my homelab:

flowchart LR
    subgraph collocation
        subgraph c_ci[CI]
            c_forgejo[forgejo]
            c_reposilite[reposilite]
        end
        subgraph java["java microservices"]
            CEL
        end
        c_nginx[NGINX]
    end

    subgraph main
        subgraph CI
            forgejo
            woodpecker
            reposilite
        end
        subgraph Nextcloud 
           Nextcloud
           Collabora
        end
        ha["Home Assistant"]
        syncthing
        NGINX
    end
    forgejo --> woodpecker --> reposilite
    forgejo -.->|mirror| c_forgejo
    woodpecker ---> c_reposilite
    woodpecker ---> dc[Docker Hub]
    yah["You are here"] -.-> c_forgejo
    

Tech stack: Docker Compose

Some personal coding projects

• Time management library
  • Provides time structures to time management apps
  • Tech stack: Plain Java + Junit, AssertJ
  • Repository: https://git.ztsh.eu/stawros/time
• HackerRank
  • Recreated HackerRank's validation system based on stdin/out
  • Contains some solutions
  • Tech stack: Plain Java + Junit, AssertJ
  • Repository: https://git.ztsh.eu/stawros/hackerrank
• Competencies for Effective Learning
  • Questionnaire project commissioned by the lecturer of the University of Silesia
  • As of time of writing (Mar'24) 1000+ people completed test
  • based in 2017, started with Java EE, Primefaces 6, Heroku
  • Beta of 2nd version released in mid-2023 on Spring Boot 2.7, Primefaces 12, Docker
  • Repository: to be published
  • Online: https://apps.ztsh.eu/cel/
• Redmine Assistant
  • Universal, multi-person time tracker addition to Redmine system
  • Tech stack: Spring Boot, Primefaces
  • Repository: to be published
• Jira Assistant
  • Time tracker, dashboards, task mirroring between instances
  • Works with both cloud and server editions (even at once!)
  • Tech stack: Spring Boot, Vaadin, Hazelcast (cache)
  • Repository: to be published

Socials 🙋‍♂️

Resume

Online and most up-to-date version available at