From late 1944 to 1948, he was the manager of Swiss donation, and from 1948 Swiss European Aid (SEH). He started aid for Germany. From 1949 to 1970, he was a member of the International Red Cross ICRC in Geneva. In 1958, he led the East Swiss Evangelical Home of Wartensee. He founded the Swiss Aid Organization for Non-European Areas (SHAG) with Regina Kägi-Fuchsmann.