Crear una página web

It's a non-profit website about runs. The money we raise on runs go towards spinal cord injury cure science. We hold 2 or 3 runs per year in different venues, so each run we change the site a little bit: mostly the text information and maybe a little bit of how it looks (new images of the venue and overall site colors). The rest (sign up forms, payment gateway, contact forms, number of pages etc) is virtually identical. Website is basically PHP+MySQL+HTML+CSS+jQuery The person will also take care of all the e-mailings we do regarding the run (we usually send 2 or 3 before the run and a couple more after). We use MailingChimp so we expect the person to have experience with it or be able to provide its own free mail serving service. (Obviously we have everyone's e-mail already). I need someone experienced in this kind of word, only experienced people will be considered for this "on and off" position. We will pay per job (each website remodellation, sort of speak). If you can give a good price on a VERY GOOD JOB you'll get high scores in this site but what's more important, we'll be partnering again on the next race. All the design will be provided, the overall look, the pictures, the text, everything. I'm a developer myself but I need to invest all my time in the managing of the events, I need someone reliable and trusthworthy. I've had bad experiences in the past. Please, only, ONLY contact if you meet ALL these requirements: - You have lots of experience working in web development, specially with payment solutions - You work fast because you are very good at it, not because you leave mistakes behind - You like to be proud of your work, so you work until the job is done perfectly * Very valued interest for not for profit causes