SocialEngine Expert to debug / fix a plugin and a few more things

We are looking for SENIOR EXPERT in SocialEngine to do Network maintenance and fix bugs / install and configure a Page plugin / instal an external landing Page theme..... This is continuous work as we have several network to run. We are looking for a stable, reliable and cost effective professional that know very well the latest version of SocialEngine. Price is as follow : - Bug fixes : 50$ - External Landing Page install (the them is ready just need to be installed) : 45$ - Complete De-bug : 50$ - Plugin fix and configuration (no custom work here) : 45$