I have been interviewed for the position in 2017 in Ankara Office. The interview were solely based on competency-based interview were they have asked relevant questions although I should say due to their cooperation with Migration Directorate, there was a liaison from them who was literally trying my patience concerning my political or world views. That impacted the outcome as I have gotten the impression from the faces of the UN officers.
I would say, the UN part was particularly great but the other part is unnecessarily unprofessional and politically oriented.
The interview was in English and Turkish and I have realized that the liaison didn't get what I have been talking in English at all as it shows the other side of the unprofessionalism from their side.