Ongoing Programming work for Captive Portal Website

I recently lost my programmer, so I need a new person to provide ongoing programming support. The site is uses twitter login and facebook login. It is built in PHP and has a mysql backend. So you should know RADIUS, Linux (Centos), php, apache, nginx, Facebook login (not working right now), Twitter Login (working), mysql, and if you know mikrotik, that would be nice. The most important point is that you are trustworthy and responsible.

My last programmer worked with me for over 4 years, so I will need you for a while. Include watermelon in your big so I know you are not a bot.