I applied online. The process took 4 weeks. I interviewed at CLERENS (Brussels) in July 2025
Interview
The interviewers were two, the two people from the team with the open position. They answered to my application 3 weeks after I sent it in. The interview lasted 10 minutes more than expected, 40 mnutes in total. The interviewers were both kind and genuine.
Interview questions [1]
Question 1
What do you already know about batteries?
Can you please tell more about your thesis on...?
What did you mean in your cover letter when you mentioned that "Batteries can contribute to the grid's flexibility"?
If you were a venture investor, where would you invest your money in the energy field?
Interview is in 3 phases: 1. 30min Interview with Head 2. 30min Test 3. 15min Interview with officer Difficult of the test: medium, but limited time to complete the test.
Interview questions [1]
Question 1
1. Questions on previous experience 2. Questions on EU dossiers 3. Questions on interpersonal characteristics
I applied online. The process took 1 week. I interviewed at CLERENS (Brussels) in Jan 2023
Interview
After a short call, they announced to me that I had to take a skill test to be preselected. The day after I had to organise myself to take the time at work to do this test from 4 to 6 pm, it was essential to do it in two hours maximum. I didn't like that they didn't even introduce theirself with an interview but just went straight to the task.
Interview questions [1]
Question 1
Skill test only - draft an email to members about a newsletter - one LinkedIn and one Twitter post about an event - two questions on renewable energy