The interview is absolute time waste for 4+ hours, happened at their office near the London Liverpool street station. They are looking to setup a team in London as a back up option to replace few other teams globally. Though the interview is successful by positive feedback from them, they are delaying a lot in rolling out the offer because as I said this is a backup option. So, I would suggest not to attend any interviews for technical lead position in London Liverpool street station for Lead java developer for their Raven, ElseAPI or Identity team. By the time, I got three other offers and I picked one of that.