added data scientist job

@greysteil - would be great if you could have a quick look at this ad to see if you think it works. Screenshot below:

![screen shot 2014-06-10 at 15 19 41](https://cloud.githubusercontent.com/assets/529005/3231282/4a0261b8-f0aa-11e3-892a-dc143b0f1029.png)