Area of expertize:
* Unix system installation, customization and support (mail service, web site, virtualization, high availability)
* Nginx, Apache, Drupal, Wordpress tuning and troubleshouting
* Asterisk, Opensips installation, advanced VoIP service development, support
* VPN/OpenVpn installation and support
* FreeRadius based solution
* Python, PHP, Perl, Bash
* Amazon EC2, Autoscaling, RDS, S3
Completed projects and tasks:
- Linux out of memory issue fixed.
- Drupal slow performance issue solved.
- Mysql queries optimization done.
- Asterisk script development was done.
- SIP load balancing and accounting scheme was implemented.
- Nginx + php-fpm was installed and tuned.
- Linux server security audit and fixes installation was done.