4. Germany's immigration profile is lower-skill - we let in way more refugees and have open borders with most of Eastern Europe - but among the tech workers, the same pattern as in the US occurs. The firms that hire in English, hiring disproportionately an immigrant workforce, pay better than the ones in German; for one, a Polish immigrant, let alone an Indian one, has much less willingness to work at reduced German wages compared with UK ones (or US if that's available) than a native German.