ENAR's excellent newsletter has brought this issue to my/our attention. It has sent a 'red flag' to the OECD who see it as worrying that so few immigrants hold public sectors jobs in Germany, after all these years of living and being citizens.
http://www.dw.de/immigrants-absent-from-german-public-sector/a-16426839
It would be good to hear perspectives from our German colleagues, e.g. Nina, Aliyeh and others?
Valerie

According to the research director:
"In no other country is the presence of immigrants in the public sector so starkly underrepresented as in Germany," he said.