Developing a database, application and system software. In terms of OS: Windows, MacOS, Solaris, Linux & other Unix-based(shell scripting, installation packages, utilites and other). In terms of PL: C++, C#, Java(Server-Client, DB-based, office automation and other). In terms of DB: MS SQL, Oracle, Postgre. Also doing research in the area AI & HPC. During the weekend, as a rule, do not work.