| Institution | Role | From | To |
|---|
| Municipal Higher Lyceum, Wiesbaden, Germany | Trainee Teacher | 1932-10-01 | 1933-09-30 |
| Mathematisch-Naturwissenschaftliche Fakultät, Universität Breslau, Breslau, Germany | PhD-student (mathematics) | 1932 | 1932 |
| Instituto Italiano degli Attuari, Royal University, Rome, Italy | PhD-student (actuarial mathematics & statistics) | 1933-10-01 | 1935-11-18 |
| Instituto Italiano degli Attuari, Royal University, Rome, Italy | Research Assistant | 1933 | 1936 |
| Municipal Higher Lyceum, Wiesbaden, Germany | Teacher | 1937-10-26 | 1938-01-15 |
| High School for Girls of the Lutheran Parish, Fulda, Germany | Teacher | 1938-01-16 | 1938-02-28 |
| High schools for girls, Wiesbaden, Germany | unpaid Teacher | 1938-03-01 | 1938-04-30 |
| High schools for girls, Wiesbaden, Germany | Teacher | 1938-05-01 | 1939-03-31 |
| Statistische Abteilung, William-Kerckhoff-Institut, William G. Kerckhoff-Stiftung, Bad Nauheim, Germany | Head | 1940-11-01 | 1951-03-31 |
| Teacher Academy Friedewald, Altenkirchen, Germany | Teacher | 1941-06-01 | 1941-10-31 |
| Goethe-University, Frankfurt am Main, Germany | Lecturer in biostatistics | 1943-05-25 | 1945 |
| Technische Hochschule Darmstadt, Darmstadt, Germany | Lecturer in mathematical statistics | 1947 | 1951 |
| Goethe-University, Frankfurt am Main, Germany | extra-budgetary Professor of Biostatistics | 1951-04-16 | 1963-12-31 |
| Medizinische Fakultät, Universität Tübingen, Tübingen, Germany | Assc. Professor of Biometry | 1964-01-01 | 1966 |
| Institut für Medizinische Biometrie, Medizinische Fakultät, Universität Tübingen, Tübingen, Germany | Director | 1964-01-01 | 1976 |
| Medizinische Fakultät, Universität Tübingen, Tübingen, Germany | Professor of Biometry | 1966 | 1976 |
