Eleanorof London

Dubois began his career in Jersey, working under naval architect Alan Buchanan. He later joined Gorey Yacht Services and contributed articles to Yachts & Yachting. In 1976, he designed his first yacht for Jersey restaurateur George Skelley, a vessel named Borsalino Trois.

In 1977, Dubois established his own practice, Dubois Naval Architects. He gained international recognition after designing Police Car for Peter Cantwell, which went on to win the Admiral's Cup in 1979. His first superyacht, Aquel II, followed in 1986. The following year, he designed Esprit for Neville Crichton, a project that led Crichton to retain the construction team and establish the Alloy Yachts shipyard. Over the course of his career, Dubois designed 47 sailing yachts ranging from 110 to 217 feet in length, including Kokomo, Timoneer II, Silvertip, Tiara, Zulu II, and Mondango II.

Dubois was a fellow of both the Royal Institution of Naval Architects and the Royal Academy of Engineering, and in 2004 he was awarded an honorary doctorate by Southampton Solent University. In recognition of his contribution to yacht design, the Dubois Cup regatta was named in his honour in 2007.