This job posting is seeking a senior Linux administrator to manage the Linux and Apache infrastructure at a site in Delft, Netherlands from July 2010 through March 2011. The administrator will be responsible for the daily management of Linux systems, operation of the Linux infrastructure platform, and implementation of changes and new applications. Required qualifications include a bachelor's degree, RHCE certification, four years of Linux administration experience, extensive knowledge of technologies like Apache, PHP, Perl, MySQL, Linux, and networking, as well as familiarity with tools like JBoss, Squid, load balancing, monitoring, virtualization, and backup software.