I applied online and it took 2/3 weeks to hear back and get offered an interview. The interview was with a panel of two people. They started by running through the job details, describing shift pattern, job location, uniform etc, and assessed my Welsh level as that was a part of the job requirements, and then asked 4 questions. Very friendly panel, and they helped clarify what certain questions were asking. Overall, a positive experience. It took them a week to let me know the result of the interview and no feedback was offered.