Permanent Part time PHP developer needed (some html, css and jquery) [CLOSED]

We require a PHP developer to join our team on a permanent part-time basis (10 hours a week). The position will involve implementing a backlog of updates and additional functionality to our medical EHR software. The software is a web based platform written in native PHP and mysql, with jQuery, HTML and CSS used for the front end. Experience developing and maintaining such projects would be beneficial along with some experience in user interface design. Some additional tasks may be required periodically on WordPress sites. The team communicates in English primarily using Slack and email. Please respond with a short covering letter explaining your experience and employment history. We require an individual for this position. Please no agencies. Anticipated remuneration will be US$200-$400 a month depending on experience.