a) full-time occupations

1960-61        Clerk. Compañía Distribuidora Nacional. Valparaiso, Chile.

1963             Supercargo. Compañía Interoceánica de Vapores. Valparaiso, Chile.

1964-65        Bank cashier. Crocker Citizens National Bank. Los Angeles, California, USA.

1972-74        Counselling psychologist. Altonaer Paediatric Hospital. Hamburg.

1974-92        Clinical Psychologist and Lecturer. Dept. Child and Adolescent Psychiatry. Univ. Hamburg.

1992-2004    Senior Psychologist. University Clinic for Child and Adolescent Psychiatry. Univ. of Muenster.

b) part-time positions

1975-83    Guest Lecturer. Psychology Dept. II (Clinical Psychodiagnostics with Children and Adolescents)

                 and Psychology Dept. III (Introduction to Systemic Family Therapy, University of Hamburg.

1982-87    Part-time family therapist. Psychiatrist´s Office of Dr. Rudolf Duerr, Hamburg.

1984-85    Guest Lecturer (Introduction to systemic Family Therapy. Psychology Dept., University of Bremen.

1987/89     Guest Lecturer. Dept. of Psychology. Universidad de La Frontera, Temuco, Chile.

2004          President of the V European Congress of Family Therapy and Systemic Practice of the European

                  Family Therapy Association from 29th September till 2nd October 2004 in Berlin.

c) Honorary positions and memberships

1985-        Trainer in Systemic Therapy and Counselling. Institute of Systemic Studies, Hamburg.

1986-96    Chair and Director. Institute of Systemic Studies. Hamburg.

1986-98    Member of the Scientific Board and Guest Trainer. Institute of Family Therapy, since 1995 Institute

                  of Systemic Theory and Practice ISTUP. Frankfurt.

1988-        Guest Trainer. Institute of Systemic Counselling and further Education. Salzburg;

                  later on: Austrian Association of Systemic Therapy and Systemic Studies ÖAS, Region Salzburg.

1994-03    Member of the Scientific Board. Bremen Society of Systemic Therapy.

1994-99    Trainer. Organos, College for systemic Teaching and Counselling, Linz, Austria.

1995-        Trainer. Institute of Humanistic Psychology, Eschweiler.

1997-        Scientific Board. Berlin Institute of Family Therapy

1997-05    Founding member & Senior Trainer. Westf. Institute of SystemicTherapy & Counselling, Münster.

c.2) Scientific journals

"Zeitschrift für systemische Therapie" . Dortmund: Verlag modernes lernen (Board member since1985).

"Familiendynamik", Stuttgart: Klett-Cotta (Editorial Board since 1985).

"System Familie - Forschung und Praxis", Berlin: Springer (Scientific Board from 1987-2000).

"Systeme - Zeitschrift der österreichischen Arbeitsgemeinschaft für systemische Therapie und

        systemische Studien", Wien: Literas Universitätsverlag (Scientific Board since 1989).

"Kontext" , Deutsche Arbeitsgemeinschaft für Familientherapie DAF; since 1999 Deutsche Gesellschaft für

        systemische Therapie und Familientherapie  (DGSF).(Scientific Board since 1989).

"Estudios Psicológicos. Revista Latinoamericana de Investigación Empírica y Teórica"  Temuco, Chile:

        Ediciones Universitarias (Associated Editor 1990-92).

"Psychotherapie im Dialog", Stuttgart: Thieme Verlag (Scientific Board from 1999-2006).

"Das gepfefferte Ferkel. Online-Journal für systemisches Denken und Handeln". IBS-Verlag, Aachen. (Board

        since 2003).

c.3)  Professional associations

1993-99    Founding President. Systemic Society - German Association for Systemic Research, Therapy,

                 Counselling, and Supervision (3 consecutive election periods).

1995         Member of the Scientific Board. Society of Social Therapy Lingen.

1996         Founding member. German Society of Complex Systems and Non-linear Dynamics.

1999         Member of the Chamber of Individual Members. Systemic Society, Germany.

2001         Member of the Chamber of Psychotherapists of the federal state of Nordrhein-Westfalen NRW, Germany

2001         Elected member of the General Board of the Psychotherapists' Chamber NRW - dimission after 3 months

2001-05    Member of the Board. NFTO-Chamber of  EFTA (European Family Therapy Association)

2004-05    Chair der NFTO Kammer der EFTA (Chamber of the National Family Therapy Organisations of

                  the European Family Therapy Association)

d) Distinctions

1989-91      Profesor visitante ad honorem (Honorary Guest Professor). Universidad de La Frontera, Temuco, Chile.

2007            Ehrenmitglied (Honorary Member). Institut für systemische Studien e.V. <Institute of Systemic Studies>, Hamburg (6.12.2007).

2009            Ehrenmitglied (Honorary Member). Systemischen Gesellschaft. Deutscher Verband für systemische Forschung, Therapie, Supervision

und Beratung e.V. <Systemic Society. German Association für Systemic Research, Therapy, Supervision and Counselling>. (07.05.2009)

2009            Čestný Člen (Honorary Member). Inštitút pre Systemickú Skúsenost (Institute for systemic Experience), Prague, Check Republic (27.05.2009).