From Wikipedia, the free encyclopedia

I'm Yosh (Yosh from Kemu), my real name is Roman Pietrzak. I'm a friendly person :) I have few minor edits on wikipedia.

I live in Poland, but at the moment I spend most of my time in Staines (UK), next to London. I'm software developer, I work a lot with node.js and JavaScript nowadays (full-stack dev). I play with devops a lot: AWS, kubernetes, helm, Jenkins, Docker, circleCI, graffana and with TDD/mocha/jest/selenium/pupeteer testing. In the past, I did a lot of C/C++ code, I love QT, I was also enjoying PHP and some Java. I love coding of GUI-s and procedural graphics.

My sites[edit]

  • My personal blog/site with more details about me: Roman Pietrzak Personal website
  • I'm the proud owner of - Kemu Studio - a small company focused on high quality software development.
  • I'm proud owner/author of and - which is a collection (250+) of web-based calculators for various subjects/categories like health (e.g. Body-Mass-Index, calories), taxes, deposits, income, loan cost, IP address, chemistry, math, physics and a lot more...
  • Zielona Góra W Sieci - is an "underground", "unofficial" site of my home city Zielona Góra (means "Green Hill" in english).