technician vs skilled worker

technician and skilled worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
technician	Yes	No	No	No
skilled worker	Yes	No	No	No

As nouns, skilled worker is a hypernym of technician; that is, skilled worker is a word with a broader meaning than technician:

technician: someone whose occupation involves training in a specific technical process
skilled worker: a worker who has acquired special skills

Other hypernyms of technician include skilled workman, trained worker.

technician (noun)	skilled worker (noun)
someone whose occupation involves training in a specific technical process	a worker who has acquired special skills
someone known for high skill in some intellectual or artistic technique