I guess I should have been more explicit. I am not talking about the actual encryption/decryption/data-wrangling stuff in this HTML page. All of this is obviou

I guess I should have been more explicit. I am not talking about the actual encryption/decryption/data-wrangling stuff in this HTML page. All of this is obviously very neat and very usable. The reason I do think this is a job ad is the fact that it's the GCHQ that is publishing it. Seriously, a spook agency is publishing neat open source stuff. I can only think of two reasons for this to happen and both align: a) employee happiness (few people enjoy doing stuff in secrecy, I think) b) using the by now well-established mechanics of corporate branding to make the GCHQ appealing to a larger amount of developers/hackers. I think the latter is the dominant factor, and this is why I called this a job ad.