I applied online. The process took 2+ months. I interviewed at UNICEF (New York, NY) in Sep 2016
Interview
competency based interview and HR questions. a panel of specialists. They seemed to take the process seriously which is great. Skype interview wasn't great for inter-personal feel which is also important in determining whether you want to work with one another or not.
Interview questions [1]
Question 1
Analysing skill, communication skills, closely linked to the job description and one should prepare examples close to the job description