- Rabbi Finchley Progressive Synagogue (1966–2000)
- Emeritus Rabbi, Finchley Progressive Synagogue (2000)
- Rabbi, Temple Torah, Monticello, N.Y. (1964—1966)
- Council of Christians & Jews (Finchley Chapter), Vice President
- Governor of Akiva School (until 2004)
- Trustee & Member of the Jewish Community Day School Advisory Board (JCDSAB)
- Extra-Mural & Part Time Lecturer, Birkbeck College
- Part Time Lecturer, Leo Baeck College
- Chaplain to the Mayor of Barnet (1993-1994)
- Executive member, Barnet Community Relations Council (1980-84)
- Chairman, Rabbinic Conference, (1970-71) and initiator of its annual Rabbinic Kallah
- Editor, ULPS News [the Union of Liberal & Progressive Synagogues], (1978-86)
- Former member of the Finchley & Friern Barnet Operatic Society
- Appeared (as a Rabbi) in the film, Staggered with Martin Clunes
- Hobbies include art, music & singing, films, Israeli stamp collecting and cooking
- Awarded D.D Degree (Hon) from Hebrew Union College-Jewish Institute of Religion in New York (1991)
- Publications: I Promise I Will Try Not to Kick My Sister, and Other Sermons (1987) and several articles in the Jewish Chronicle, Pointer, Manna & The Times; and commentaries on Job and Ecclesiastes for Marshall Cavendish Publications in the Bible Today series (1970)
- Audio-Visual presentation of The Land of Promise on the creation of Israel (Camera Talks Ltd)
2. Personal:
- Married to Valerie Boyd-Hellner
- Children: Marni, Rachel, Katherine, Elliot, Jonathan & Antonia
- 11 Grandchildren