This is all before COVID so interview process may be different now.
1. Video interview which is basically a tell me about yourself.
If you pass this you will be invited to an assessment centre
2. You will do a colour blindness test
3. They give a presentation
4. You will need to do a skills test which is where you will wire a switchboard in 20 minutes but they will show you how to do it beforehand and you have a wired version to copy from.
5. You will need to complete a maths, english and ICT test.
6. There will be 2 interviews, a competency based interview and an interview based around what you know about Openreach.