I built all of my first startup's product Pretty Graph using Rails, jQuery and R. It's a web app for data visualisation. You can try it here - https://app.prettygraph.com. I also manage all the hosting and maintenance.
I have good writing skills. I've recently published a cookbook on making graphs using R - http://www.amazon.com/R-Graph-Cookbook-Hrishi-Mittal/dp/1849....
I've learnt everything about programming and building products from hands-on experience. I am very good at picking up new technologies and like working with other people.
If that sounds good, please email me at firstname.lastname@example.org.