The written test and the interviews are competency-based assessments, both held in English unless otherwise specified. The written test usually has a duration of three hours; the interview typically lasts 30-45 minutes. During the assessment you will be asked a combination of competency-based and/or situational judgement questions, based on situations that you have encountered and/or would meet as part of your daily activities, should you be successful in the selection process, as well as theoretical questions about your knowledge on the subject matter and scenarios regarding some of your general competencies (ability to draft a clear text for various audiences, keen eye for details, organisational skills, etc.).
The interview is split into two parts: one regarding your general competencies and one regarding your technical knowledge. At the end of the interview, you may ask the Selection Committee questions yourself. The same questions are asked to all the candidates. However, you can expect also follow-up questions, based on your own answers.