Joseph Dweck

In January 2018, Rabbi Dweck resumed his lectures with a new series at the London Jewish School of Studies, at a sold-out return to Hendon.

In May 2017, Rabbi Dweck gave a lecture in London as part of his Perspectives series in Hendon, in which he presented his approach regarding the Torah view on homosexual love, declaring that Jewish law does not legislate against the feelings involved (sexual relations, he stated, are prohibited by the Torah). He suggested that contemporary developments on this issue, while problematic, are also "a fantastic development to humanity" as they force humanity to rethink the question of love, and potentially remove the stigma associated with platonic love and affection between men. He preceded his words with caveats and stated his awareness of the controversial nature of the topic, explaining that he had been thinking about it for years and felt the need to discuss it because "no one was talking about it openly in Orthodox Judaism." This lecture proved highly controversial and while some welcomed and supported it, others strongly rejected it, including Rabbi Aharon Bassous and the Beth Din of the prominent Haredi Rabbi Nissim Karelitz.

Consequently, in July 2017, an agreement was achieved, led by British Chief Rabbi Ephraim Mirvis, together with Dayan Chanoch Ehrentreu (Av Beth Din of Europe), Dayan Menachem Gelly (Rosh Beth Din of The London Beth Din), and Dayan Avraham David (Rosh Beth Din of the Sephardi Beth Din), who questioned Rabbi Dweck on his statements and teachings, and concluded that he continue his role as the Senior Rabbi of the Sephardi community. Rabbi Dweck agreed to step down from the Jewish legal position of a Judge (Dayan) of the Sephardi Beth Din. However, as Senior Rabbi, Rabbi Dweck maintains oversight of the Beth Din and appoints its dayyanim. In addition, his future public lectures that presented innovative approaches were to be subjected to rabbinic review, for a time.

In 2015, the Jewish News in conjunction with the Jewish Leadership Council published '40 Under 40', listing young members of the British Jewish Community at the forefront of Jewish life, with Rabbi Dweck listed 4th among the top 10.

In 2013, Rabbi Dweck was appointed Senior Rabbi of the Spanish and Portuguese Sephardi Community of the United Kingdom. He was elected with a 270-4 vote, a margin believed to be the largest in UK synagogue history. On Sunday, 24 September 2014, Rabbi Dweck was officially installed as Senior Rabbi at the community's cathedral synagogue, Bevis Marks. The Jewish Chronicle reported that: "Religious leaders from across the Anglo-Jewish spectrum, from Liberals to Lubavitch, came to celebrate the arrival of the fresh-faced new leader, aged just 39, at the community's oldest congregation. Dayanim from the Federation and United Synagogue and a large contingent from independent Sephardi communities attended, as well as Emeritus Chief Rabbi Lord Sacks, who took part in the ceremony".

In Brooklyn, Rabbi Dweck served as Rabbi of Congregation Shaare Shalom, a Syrian Sephardi synagogue of 800 members from 1999 and also served as Headmaster/chazan of Barkai Yeshivah Day School.

Rabbi Dweck studied for three years (1996–99) at the YULA Kollel in Los Angeles under Rabbi Nachum Sauer. In 1999 he moved with his wife and oldest son to Brooklyn, New York to become a fellow of the newly established Sephardic Rabbinical College under the direction of Rabbi Shimon Alouf, where he studied for the next seven years.

In 1995 he married Margalit Bar Shalom, a granddaughter of Rav Ovadia Yosef. Margalit is the daughter of Dayan Ezra Bar Shalom and Adina (Yosef) Bar Shalom.