As pointed out Small Spanish companies a a bit cavalier about HASAW - esp in the building trade or where subcontracting is rife.

BUT larger companies (warehousing, manufacturing) HAVE TO BE CAREFUL- Problem is they'll generally search out a LARGE specialist consultancy and the report will have to be in 100% correct Spanish. NOT EX-PAT SPANISH. If you want to pursue this - You'll need to look out consultancies where you end up. You never know you may find one that certifies outside Spain too. It happens.

There was a spate a good 4 years ago where firms were almost fighting over such services here in Madrid, as HASAW certification for "certain sized companies" was mas a legal pre-req for continuing trading. Told it's calmed down now - and the trend is for new companies to be smaller rather than larger. The big conglomerates already have tame consultants and HASAW staff.

You stand more chance as a Blacksmith. Frankly I also think you'll enjoy life more. Proper ones that do Horse's are getting rare I'm told - BUT you'll need to look where there are horses - That probably means INLAND. You'll be travelling a fair bit I'd imagine. Also means you'd probably get invitations to Hunts on the larger cortijos - if that's to your taste. If you could get on the good books of a Rejonero (Horse mounted bullfighter) you'd be onto a good thing.

Welding: just about every village has a cerrajero (guy who makes gates etc) - If you're good at your trade you can maybe displace one - some are frankly VERY poor standard. But you'll need Spanish skills unless you live off ex-pats.