I am payment applications developer, embedded applications developer. I live in Warsaw, working on my own.

Some highlights of my work: J2SE, C, C++, payment, embedded, cryptography, JavaCard, Mifare, Android, Payment Systems, EMV, CPA, POS terminals, Ingenico, pin pads, Sagem-Monetel, Thales, Ingenico, Sagem-Monetel, smart cards, HSM

What to say more... I like good old analog photography :)