Depends on workload - they do take on contract electricians through agencies, who are time complete (with a recognised apprenticeship) and with minimum NVQ or good school qualifications.
Answered - Senior Electrical Designer (Current Employee) - Cumbria
None not a qualified electrician
Answered - Technician Trainer (Former Employee) - Tabūk
I believe anyone with a qualifications would be considered for the job.
Answered - Project Management Assistant (Former Employee) - Rosyth
They prefer their own electricians but up to debate if they want a current one on
Answered - Fabricator/Welder (Current Employee) - Glasgow, Glasgow