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IT Engineering of Computer Systems and Networks by 2005.
Masters of Computer Networks by 2008.
Systems & Network Experience
+14 years experience in Linux servers administration, configuration, and troubleshooting.
ISP Technical Manager for +8 years. I mostly work with the following services/devices: Web, DNS, Proxy, Email, DB (MySQL and PostgreSQL), Billing, AAA, Users access (LNS), Monitoring (Nagios & Zabbix), Firewall (iptables), Routers (mostly Linux-based), and managed Switches.
High experience in Linux firewall/routing: using iptables, ip rule, ip route, and ipset.
Experience in implementing high availability solutions including: keepalived (VRRP), DB replication, developing/modifying services to be HA.
Experience with virtualization solutions like Proxmox and Docker.
Basic experience in Windows servers.
Development Experience
+6 years experience in C programming (Linux environment). This accumulates to +70 KLOC in implemented projects and customization/contributions to open-source projects.
Java 8 & Spring experience.
PHP: Codeigniter, Yii2.
I do some coding/scripting in several languages: Bash, Perl, and Python.
Basic experience in HTML/CSS/JS/NodeJs.
Others
Experience in some aspects of mobile operator network and GSM protocols from implemented projects (SIGTRAN stack).
Experience in using version control systems like SVN and Git.
