Khaled
  • Member for 9 years, 9 months
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About

Education

  • 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.
  • I don't mind looking at source code if necessary.
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