Development using C++ and Java, based on UNIX/Linux environment (AIX, HP-UX, RedHat core). Extensive use of free open source PostgreSQL, Hylafax, NS2, Apache, Asterisk, OpenVPN, RSA encryption (RSAEuro), Google Web Toolkit (GWT) on client side.

Proprietary development in the field of encrypted network communications and network security.

Large scale, complex software systems integration, management and support.

R&D in the field of radio and telecommunications, working with cooperation of few PhD and Ass.prof. in Technical University - Sofia.