- SO Linux: Debian, CentOS, RedHat,...
- SO Windows: Windows Server 2003 and Windows Server 2008.
- Apache and Apache Tomcat.
- Load Balancer: BIG-IP F5 and haproxy.
- E-mail: Ironport, postfix, sendmail, dovecot.
- DNS: Bind.
- Phone: CISCO Call Manager.
- BBDD: Oracle, Mysql and Microsoft SQL Server.
- Network: CISCO and HP Networks.
- Backups: Veritas NETBackup.
- Monitoring tools: Zabbix and OSSEC.
- Virtualization: VMWare
- IT Automation Software: Ansible
- Git, SVN
- Digital certificate expert.