He worked in Tanzania as a doctor in a rural hospital. The Hospital is run by the Anglican Church of Tanzania (DWT= Diocese of Western Tanganyika). Since 1995 he is doctors’ advisor and expert in the area of social medicine of the medical service of the Health Insurance Hessen/Germany (MDK). He was for many years in the leadership committee of Workinggroup for World Mission in the SMD (Studenten Mission in Deutschland, Member of Intervarsity Fellowship).