•Has a solid command of shell scripting. Knowing at least two of C, Perl, PHP, and Python will also be helpful; •Is very strong with PostgreSQL and MySQL. Able to performance tune both; •Manages other services like HTTP, SSH, work queues, DNS, VCS, caching dæmons, etc; •Knows how to maintain third-party software packages from source, rather than relying on binaries; •Administers UNIX-like operating systems, particularly FreeBSD. Knowing Linux and/or one or more of the Big Iron Unices will work in your favour; •Hardens and penetration tests multiple servers, audits these systems daily, provides reports on vulnerable packages, and schedules mitigation of security risks; •Works or has worked in a high availability environment with mission critical applications; •Is familiar with Amazon Web services and understands how to bootstrap a system on it; •Can multitask with minimal supervision; •Is dependable, reliable, trustworthy, and responsible; •Has great English and Spanish skills - speaking, writing, and reading.