I worked last 20 year in financial and telco companies as system administrator and IT manager. In my last job, I managed a bank's IT infrastructure with 5 persons crew and managed more than 500 servers and the virtualization platform. I like to spend my time on Linux / Solaris and other entreprise UNIX. I'm still holding my RHCSA and SCSA certifications. In my current job, I'm designing and implementing open source infrastructure monitoring systems with Zabbix / Zenoss / Nagios. As my last project I built a Zabbix platform with 20 proxies / +500 agents in different areas / 100 GB Mysql DB and +550 EVPS. I like to integrate monitoring platforms with log management systems to build more effective solutions like Graylog / Logstash & Elastic. Best regards.