PHP, MySQL, Perl PartTime long project

We are looking for a part-time PHP, MySQL, Perl Developer on an ongoing basis. We prefer to work with a individual developer directly with the proper skillset. The workload will be 10 to 20 Hours per week. This project is to develop and maintain a 'Service Management System' for our company. Currently our customer management, billing and support systems are a mix of off-the-shelf Linux and Windows products. We are looking to develop a complete system in PHP, MySQL & Perl. This will be a web based solution that will combine all our operational needs to one application, with Web Interface access for our customers. System design, logic development, PHP, MySQL, JavaScript and Perl expertise is required. Good PERL expertise is a must, since the system needs to user Perl scripts to interact with network hardware and infrastructure equipment for provisioning and monitoring. This project is expected to run indefenetely. Our preference is for a candidate from the Indian Subcontinent due to the time schedule of the other participants of related projects. The candidate must have excellent written and verbal communication in US English. All code must be well commented in English. This is an ideal project for a moonlighter with a full time job elsewhere and looking for some additional income. The amount shown below is the monthly budget. In your reply, please enxplain your skillset, previous projects, and the number of hours that you can commit on a weekly basis. The project manager/coordinator usually available from 4:00PM to 9:00PM GMT. So we prefer that the candidate be avaialble for telephone calls and online chat during these hours.