Self recorded interview with a fixed time to think and to record the answer, question about: motivation and quick introduction of the candidate, company and technologies used by viridien, two maths problems to solve, hobbies/interests

It was ok. Very friendly. Had a couple of interviews and some tests. Also had to do a quick presentation on a paper that I was sent on geophysics and on my recent university project. Was quite tough as only allowed one slide per section.