Currently working as

Production Engineer at Facebook

Previously worked at/with/on

• Software Engineer at Fandom
  • worked on http://fandom.wikia.com/ site — PHP/Java backend, PHP/JavaScript frontend
  • integrated the Wikia's deployment tools with the Kubernetes infrastructure to enable fast and painless releases of the website code
  • took part (including planning) in migrating a hosted WordPress installation to an in-house solution
• SEO Engineer at Wikia Inc.
  • worked on SEO experiments establishing links between highly valuable articles from different wikis
  • consulted other teams regarding SEO best practises, especially in relation to single page applications and the mobile skin for our websites
  • worked on collecting/scraping data from various dashboards and APIs to improve visibility of various data regarding SEO health of the site
• Ad Engineer at Wikia Inc.
  • lead the team of 4
  • rewrote the ad stack mostly into highly-modular (AMD, proper unit tests) JavaScript
  • this allowed GEO-aware ad serving using multiple ad sources including Google's DoubleClick
  • reported and worked around many Google Publisher Tags bugs (most of them being fixed now)
  • working with postscribe (also reporting and working around some bugs) for the asynchronous document.write to integrate some older code from those old-school ad providers
• Allegro.pl Business R&D — as web programmer (but doing other stuff as well)
• svn2github.com
  • it let's you mirror the SVN-hosted library you want to use to GitHub (so you can use it as git submodule)
• Wikidot.com
  • Lucene-based search
  • small administration tasks
  • performance tweaks
  • design work
  • lots of bug fixes, improvements and features
  • security auditing
  • Wikidot XML-RPC API
  • deploy improvements
  • web thumbnails service
  • URL-shortening and Twitter integration
  • lead maintainer and developer of the open-source fork (including making Debian packages, experimental features and other stuff)
• TagFs — innovative filesystem based on tags instead of hierarchical structure
  • status: never beyond alpha
  • brief description: http://piotr.gabryjeluk.pl/blog:tagfs-idea
  • programed using: FUSE, Python, SQLite3
• Aurochs — tag-based internet forum
  • oficjalna strona zespołu
• pymalist — mail list server in Python
• GaduServer — Gadu-Gadu server implementation in Java
• AvatarEasy — avatar upload service featuring really easy service integration based on Google's AppSpot and Python
• WWW server in 100-lines BASH script
• fs-mirror.py
• (obsolete) Last.fm pympd plugin

Education

• Master thesis: Web browsers for mobile devices, including a web browser for Neo FreeRunner written in C++ using Qt4 and QtWebKit (ffBrowser)
• 2005 - 2010 — Uniwersytet Mikołaja Kopernika w Toruniu (http://www.umk.pl/), Wydział Matematyki i Informatyki (http://www.mat.umk.pl/)
• 2000 - 2005 — Gimnazjum i Liceum Akademickie (http://www.gimakad.torun.pl/)

Skills

excellent analytics skills, great understanding of webapp/network stack, PHP, PostgreSQL, MySQL, Python, Django, Twisted, Java, C++, Qt, C, Debian, Gentoo, Lighttpd, nginx, FastCGI, Puppet, BASH, grep, awk, sed, vim, SSH