Ruby on Rails freelancer
to be precise - Ruby on Rails (Full Stack) and iOS freelancer


Main projects, but there are a lots more ...


Please meet Krzysztof!

He works remotely from Poznań, Poland. He earned an MSc in Electronics and Telecommunication from Poznań University of Technology. In his 10+ years career he has been working with technologies including PHP, Ruby on Rails, Elixir and iOS. Krzysztof co-founded a software development company, working as a developer and CTO. At the moment he is a Head of IT at

He really likes the moment of satisfaction after solving a difficult problem. He enjoys jogging and electronic music, and in his spare time, likes to hang out with his wife and friends, and read good books. He is also a blogger at

Contact Me


Skype: k_kempinski

Mobile: +48 504 003 708