PHP Programming Help - Long-Term Project

I run a number of web sites in the Internet marketing field, built mainly on PHP/MySQL, and sitting on a redhat linux dedicated server at Rackspace, with Plesk to manage the server.

I already have someone who maintains and updates my sites on an ongoing basis, and I'm looking to expand the team in order to complete and help with a number of ongoing projects.

I therefore need someone *based in the UK* proficient in PHP/MySQL, able to work on an ongoing basis, who is available during normal working hours to work on my projects (i.e. doesn't hold down an existing 9-5 job), and who is willing to work with my existing developer as part of a team.

The number of hours each week will vary depending on project levels, but ten or more hours a week is likely at first, and over time this is likely to increase as I have a number of projects on the go at any one time.

The right applicant should be proficient and experienced in PHP and MySQL, database design, and be able to work with business-critical live systems.

Some experience in Perl and Javascript, including AJAX, would also be an advantage.

The right individual will be well-motivated, professional in their approach, and committed to high standards of output.

I am looking for an immediate start - the first 4 weeks will be treated as a trial period, and then a long-term ongoing project for the right candidate.