Work in Germany
EU Blue Card (§18g AufenthG)
Skilled worker with a degree (§18b AufenthG): For offers below the Blue Card threshold: the BA checks that pay and conditions match German employees’.
Skilled worker with vocational training (§18a AufenthG)
Opportunity Card (Chancenkarte, §20a AufenthG): A job-hunting route, not a work permit for this specific job.