Hi Ian and thank you so much for your very comprehensive information, it is very much appreciated.
You are correct in what you have assumed i.e. employed.
I was more thinking an hourly rate, but assume the above still applies.
I was of the understanding contract engineers are employed by a company and get paid an agreed hourly rate and work period.
I am an Irish citizen so can work anywhere in the EU. I believe there are counties within the Eu where you can work as a, what they call, Digital Nomad. Differing rules apply for the given country. But yes, agree this will require quite a bit of admin no doubt.
I was intrigued by zukmuh's comment that they are outsourcing CAD services to other consultancies and freelancers. This is where I think I'd like to explore work wise.
Once again, thank you for your input.