Gideon studied British, French and European Union law at the University of Warwick where he became heavily involved in Jewish causes. He graduated and returned to London in 2005.
Gideon joined the nascent Campaign Against Antisemitism in the summer of 2014, as fighting flared between Hamas and Israel and antisemitism surged in Britain. He was the principal organiser of Campaign Against Antisemitism’s major rally outside the Royal Courts of Justice which called for zero tolerance law enforcement against antisemitism. Gideon was elected to lead Campaign Against Antisemitism in autumn 2014.
Gideon has spoken at the House of Commons and given evidence to the House of Commons Home Affairs Committee. His work for Campaign Against Antisemitism has been publicly praised by Theresa May.
The Algemeiner awarded Gideon as one of the “top 100 people positively influencing Jewish life”, and the Simon Wiesenthal Center hailed him as a “Jewish hero who proves that there are still powerful ways to leverage democratic rules to serve justice and protect Jewish community”. The international Jewish fraternity, Alpha Epsilon Pi made Gideon an Honorary Brother for his services to fighting antisemitism.
Gideon has worked in high-tech, commercial real estate and management consultancy. In addition to his charitable work for Campaign Against Antisemitism, he also serves as a Board member of the Jewish National Fund UK.