I have been working at Transport for London full-time (More than 10 years)
Wide variety of projects across roads and rail
Cutbacks caused by the government spending review which has cause major jobs cuts and decreased promotional prospects.
I applied online. I interviewed at Transport for London (London, England (UK)) in January 2017.
I had to apply online, then I went to interview in West Kensington. The interview is formed of 3 stages. Test, role play and interview. The test takes about 75mimutes, has two parts and covers questions about tube map and travelcards. The role play takes about 10 minutes, plus 10minutes to prepare. It is scenario from everyday life on Tfl stations. One person plays passenger, one is observing. I didn't pass this stage so can't comment on interview process. Take bottle of water with you and some snacks, you can spend there about 3 hours.