Need MODx Development Team for ongoing projects

We have an existing MODx website, looking for a team that is experienced in MODx for ongoing improvement of the website and act as webmaster for example if problems etc. Please confirm in your bid that you are experience in MODx and provide links to relevant work. Current work to be done: Check for errors (html, broken links etc) Ensure complete browser compatibility Fix spelling and text formatting errors Optimise site for load speed, formatting etc Ongoing tasks: Upload new content, page creation etc Improve UI and layout Update to new versions of MODx Ensure constant uptime of website Problem solving If you have SEO ability please let me know.