I try to keep things simple ...you are an electrician ...are you any good at electrical maintenance ? If yes , you don't need any more quallies , just do it .
The description could be for , say, an hotel or a complicated industrial complex or fixing hot drinks machines.
Sparks come in many sizes , types & capabilities . I know of "sparks" who are experts in throwing up miles of steel trunking , conduit & pulling in SWA,s . Setting trunking ! Leave you standing !! Machine not working ? Not a clue !! Running a job ? Would run a mile !! The Clock on ...do your 8 hrs ..clock off brigade . Run a 16mm X 4 core from A to B ..Great !! Just leave him clipping away , he,s happy . No idea how we arrived at size or if theres a Volt drop .
I know sparks who brilliant at sorting industrial breakdowns , like second nature but don't ask him to do installation . Met one , looked after a factory no problem , never read the Regs , never used an MCB or RCD .
So its really up to you Tony , didn't you say you didn't want pressure . No pressure when the plant has shut down and you're the saviour with the multi meter.