Welcome to Yosh's site.

This is a mix of few technical arts (mostly programming), documentation of some projects, some code experiments, a little bit of link-holders and some personal info (portfolio, contact etc.).

About me

My real name is Roman Pietrzak. Yosh is my nickname since LAN parties and hours of Starcraft battles.

Software Engineering

I'm Software Engineering expert.
I work in software development since 1987 - yep, I made my first "program" when I was 6 years old.
  • Take a look at some things I am involved in at Projects Page, my history of work (aka portfolio) and some other info at my "How to hire me" page
  • I code with C, C++ and Java and little bit of assembler (ARM, SH4, MIPS). I really like Qt and QML. Also, I worked with Pascal and even Basic yeeeears ago.
    • I'm expert in Digital TV (SetTopBox, IPTV, MPEG, DVB etc.). I was working with CPU's from Broadcom and ST. I currently work on SkyQ Set Top Box
    • I did a lot of stuff for embedded platforms (IoT and industrial). I love ARM, Cortex. I understand basics of VHDL and electronics design.
  • I do full-stack web development with node.js, PHP, JavaScript, CoffeeScript, using HTML and CSS, playing a lot with webGL and Websockets, autotesting with Selenium and Mocha. Years ago I worked a lot with Flash and ActionScript.
  • I make my life easier scripting things with node.js and Python. I love TDD and automation.
  • I did software design/architecture, implementation, testing, integration. I did project management and team leading.

My profiles

  • Skype: yosheeck
  • LinkedIn - public Linkedin profile
  • stack overflow - time spared to help
  • Freelancer.com profile - my old freelancing profile on Freelancer (former vWorker, former RentACoder). It's 5/5 points for all jobs !
  • CodeCanyon - some PHP work I've published on Envato Market years ago
  • Kongregate - playing web games, more: games
  • Wikipedia profile - few minor corrections
  • twitter - few tweets here and there.
  • Facebook - it's censored, it's retarted, it's brain washing waste of time. Call me old, but I prefer old-school forums related to specific subject instead of retarded fb functionality.


Don't hesitate to contact me by y(at)ke.mu. Some more contact info on my CV page

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