* Security and QA tests. (black box, whitebox, configuratino reviews, ... ). Moreover, I have an high level knowledge of Python, Bash, Perl, PHP and Visual Basic. I also can install, configure, improve and hardening different services and software, as well as operative systems (windows, linux, hpux, solaris, aix, apache, mysql, php, postfix, windows, iis, courier, dovecot, postfix, ms exchange, ms sql, oracle, ...) and network devices (firewalls, cisco, netscreen, juniper)