I have been working at Foreign and Commonwealth Office full-time (More than 3 years)
Great people, interesting issues to work on, and a unique perspective
If local staff, little to no room for career advancement
I applied online. The process took 1+ week. I interviewed at Foreign and Commonwealth Office (New York, NY) in January 2014.
interveiw is very fair, they do a questionary by phone, from overseas, this mean its a fair and equal opportunity process, candidates are very fair classified by their skills, experience and ability, this means if you are the right person and qualified you could be confident of a positive selection
salaries are already set up, so you cannot negotiate it