He later moved to South Square Chambers in 1990[2] until his appointment as a judge in 2017.[3] During his tenancy, he specialised in insolvency, banking and commercial law.[1]
Whilst practising at the Bar, Zacaroli was a member of a number of committees. He served on the Management Committee of the Bar Pro Bono Unit since 2001, the Insolvency Rules Committee from 2012 and from 2015, the Financial Markets Law Committee.[1][4]