Leon W. | Elance
Last Sign-in: May 10, 2012

Leon W.

UNIX\Linux System Administrator
  |   Naharya, HaZafon


Born in Brazil in 1983, started to play with computers in 1990. Working in the Computers Related Market since 1996.

Full time Linux user since 2000.

Started to work as System Administrator and PHP Developer in 2002. Migrate from Brazil to Israel in 2006 where started to Work in the High-Tech industry as Unix System Administrator.
Service Description
Already administered the following Operational Systems and Versions/Distributions on Production Environments:
- FreeBSD (5.3, 6.0, 6.1, 7.1).
- Linux (CentOS, OpenSUSE, Ubuntu, Debian).
- VMWare (ESX - 3.5/4.1, ESXi - 3.5/4.1).

Already used the following Operational Systems and Versions/Distributions on Testing Environments and/or Desktop Systems:
- Windows (95, 98, 98se, 2000, XP).
- FreeBSD (5.3, 6.0, 6.1, 7.1).
- MacOS X (10.5, 10.6).
- Linux (CentOS, OpenSUSE, Ubuntu, Debian, Slackware, Arch, Gentoo).
- VMWare (Server, Player, ESX, ESXi).

Have experience with the following types of Server Applications:
- Web Serving (Apache, Lighttpd, Nginx).
- Application Serving (PHP and Python as Fast-CGI or Apache Modules).
- Database Back-Ends (PostgreSQL, MySQL).
- Revision Control System (CVS, Subversion, Git).
- Proxy/Reverse Proxy (Squid, Varnish).
- Memory Caching (Memcached).
- Alert/Monitoring System (Nagios, Cacti).
- SMTP (Sendmail, Postfix).
- Antivirus/AntiSPAM (SpamAssassin, ClamAV).
- IMAP/POP3 (Cyrus).
- Configuration Management (Puppet).

Have knowledge on the following security scanner tools:
- Nmap.
- Nessus.
- Nikto.

Already Developed/Scripted in the following Languages:
- VB 6.
- Python.
- PHP.
- Shell Script.

Have knowledge on the following web-oriented languages:
- CSS.
- JavaScript.

Have knowledge on the following web platforms:
- Drupal (PHP Open Source CMS).
- Django (Python Open Source Web Development FrameWork).

My main Goal is the same for the last 10 years. Keep learning as much as I can to always improve my skills and understanding of how client-server operations can be improved to match clients expectations and hardware capabilities.

Troubleshooting, Planning and Deployment of New Systems, Self-Learning, Development and Application of Creative Solutions, Servers Implementation and Infrastructure.
Spiral Solutions
Unix/Linux System Administrator
2007 - Present
Payment Terms
None specified
Leon W. | Elance

Leon W.