You have to apply through UNICEFs portal and submit your P11. After 5 months of wait you get a test which is a very difficult exam and then 2 months later you get a competency based interview. Time is one of their weakest pointd as it takes way too long for the recruitment process fron start to finish. The panel was made up of 4 people, including an officer from the regional office who was present through skype.