Updating Thoughtworks.

Contributor: Harvinder Dhinsa, Business Analyst, Thoughtworks, in charge of gender metric data analysis
Source: internal numbers

I have had a chat with the team and although some QA's write code ie
are engineer testers, we will exclude them to ensure that those who
are not don't skew the numbers. However, the UI Developers do write
Javascript routinely and not just HTML/CSS.