Learn Swedish: En kvalificerad kandidat har ofta både utbildning och erfarenhet. - A qualified candidate often has both education and experience.

It works exactly like "both ... and" in English. It connects two similar things, which in this case are the nouns utbildning (education) and erfarenhet (experience). You just place både before the first thing and och before the second.

Why is the word order har ofta instead of ofta har?

This is because of the Swedish V2 rule, which says the verb must be the second block of information in a main clause. The entire subject En kvalificerad kandidat counts as the first position, so the verb har must come immediately after it in position two. The adverb ofta (often) follows the verb.

Why does kvalificerad end in -d? Is it a past tense verb?

It comes from a verb, but here it acts as an adjective describing the noun kandidat. Because kandidat is an en-word, the adjective takes the -d ending. If it were describing an ett-word, it would be kvalificerat, and for plurals it would be kvalificerade.

Why aren't there articles before utbildning and erfarenhet?