I work as a programmer and I also run my own business in sales. I started trading about 3 years ago, but started using mt4 very recently. If you want to exchange experiences with me or have a programming question (I know mql quite well because it's very similar to C) don't hesistate to PM me! Cheers! :)
Now I'm working on implied volatility indicator. I think I'll post it to code base when I'm finished. If you don't know what implied volatility is, you can check on investopedia: http://snip.ly/x8xE