I'm a ruby developer and martial arts expert from Gdynia, Poland. Owner of Gotar company. Day by day working for many different clients around the world, helping them with reaching their goals. Freelancer (you can book a consultation above). Founder of TRUG (local Ruby Users Group). Aikido & Ju-jutsu instructor, having his own dojo in Gdynia. Currently sandan (4th dan) in Aikikai Aikido & shodan (1st dan) in Hakko den shin Ryu Ju-Jutsu.