Cover letters are not all that important here in Germany.
Your CV matters a lot more, according to my experience, but it should be no longer than 1-2 pages.
Projects are what matters, so show them the code (e.g. with a GitHub profile).
Your CV matters a lot more, according to my experience, but it should be no longer than 1-2 pages.
Projects are what matters, so show them the code (e.g. with a GitHub profile).
Also it certainly shouldn't do any harm to include one