Position: Network System Administrator
Category: Sysadmin
English level: pre
Years of experience: 11

Zabbix: installation, configuration and maintenance, visualizations with grafana
Engineering duties:
Administration of servers with Suse Linux Enterprise Server, CentOS, Ubuntu Server, Windows Server operating systems;
Administration of IBM Power Systems and HPE ProLiant servers;
Installation,configuration and administration Pfsense open source firewall and router, Check Point Next Generation Firewall, Ubiquity UniFi Security Gateway.
Administration of HP Enterprise and Cisco Enterprise network switches: network troubleshooting, vlan, stp
Administration of IBM, HP Storage Systems;
Zabbix: installation, configuration and maintenance, visualizations with grafana
Proxy: Squid3, Squidquard, wpad, lightsquid
Mail: Postfix, dovecot, fail2ban, roundcube
Web Servers: Nginx,Apache, virtual hosts, high availability cluster Haproxy + Pacemaker + Corosync
WIfi UniFi Network Management Controller: installation, configuration and migration
VMware ESXi virtualization: ESXi 6.7 Installation and basic configuration

Design, implement, install, configure and troubleshooting Microsoft Windows Servers.
Administrating Windows Server networks,domains, roles and services.
Troubleshooting and maintenance Active directory, DNS and DHCP.
Develop solutions to customer problems using the best technologies available.