you need a lot of knowledge in electrical, electronics and mechanical. I applied online then got a confirmation email for the time and date of the interviews. It was a very fast and great experience, its such a great environment to work in.

Applied online via website, received invite for written exams to be carried out onsite. Three exams carried out and had to wait for results. Phoned a couple weeks later with results then invited back for a 1:1 interview. Interview was fairly straight forward with some technical questions and some competency based questions. My overall experience was pleasant.