.profile/README.md
2026-02-19 03:14:12 +01:00

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### Hi! My name is Peter :wave:
I'm a professional Java + Python developer with 9 years of experience.
**Interests**: Algorithms, Containerization, Process Automations
**After hours**: LEGO, Railway modeling, Polish fantasy literature
### Tech Stack :wrench:
My job is oriented towards Java and Spring Boot. For internal and personal projects I use Python.
![Java](https://img.shields.io/badge/java-ED8B00?logo=openjdk&logoColor=white)
![Python](https://img.shields.io/badge/python-3670A0?logo=python&logoColor=ffdd54)
![Kotlin](https://img.shields.io/badge/kotlin-%237F52FF.svg?logo=kotlin&logoColor=white)
![Spring](https://img.shields.io/badge/spring-%236DB33F.svg?logo=spring&logoColor=white)
![Scala](https://img.shields.io/badge/Scala-002b36?logo=scala&logoColor=dc322f)
![Oracle](https://img.shields.io/badge/Oracle-F80000?logo=oracle&logoColor=white)
![PostgreSQL](https://img.shields.io/badge/PostgreSQL-316192?logo=postgresql&logoColor=white)
![Jenkins](https://img.shields.io/badge/jenkins-%232C5263.svg?logo=jenkins&logoColor=white)
![Docker](https://img.shields.io/badge/-Docker-2496ED?logo=docker&logoColor=white)
![Nginx](https://img.shields.io/badge/nginx-%23009639.svg?&logo=nginx&logoColor=white)
![LaTeX](https://img.shields.io/badge/LaTeX-%23008080.svg?logo=latex&logoColor=white)
![Markdown](https://img.shields.io/badge/markdown-%23000000.svg?logo=markdown&logoColor=white)
### Projects :hammer_and_pick:
My current long-term project is my homelab, which is constantly evolving.
Brief summary:
- 2 servers
- 12 services
- CI/Forgery:
- 2x forgejo
- woodpecker-ci
- karl
- Web
- nginx
- nextcloud
- zitadel
- homepage
- Databases
- postgres
- redis
- influxdb
- Monitoring
- grafana
- eclipse mosquitto
- 5 domains
- 8 Postgres databases
Tech stack: Docker Compose
#### Some personal coding projects
- Karl
- Automatic docker-compose updates
- Ran by CI/CD pipelines
- Tech stack: Python, FastAPI
- Repository: https://git.ztsh.eu/stawros/karl
- Garmin HUD+ companion application
- Complex map & navigation solution to be used with Garmin HUD+
- Tech stack: Kotlin, Mapbox SDK
- Repository: https://git.ztsh.eu/stawros/Garmin
- 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 :raising_hand_man:
[![LinkedIn](https://img.shields.io/static/v1.svg?label=LinkedIn&message=piotr-dec&logo=linkedin&style=flat&color=blue)](https://www.linkedin.com/in/piotr-dec/)
### Resume
The most up-to-date version is available here:
https://git.ztsh.eu/api/packages/stawros/generic/profile/2026_02_19/Dec_Piotr_CV.pdf (PL)