He currently holds two Michelin stars at his restaurant Hibiscus in London. The restaurant was previously located in Ludlow, Shropshire, where his first Michelin starred restaurant Overton Grange was also located. Bosi served his apprenticeship at restaurant Léon de Lyon.
He moved on to work at a variety of Michelin starred restaurants in France including Louisiana Pyramide Fernand Point, Restaurant Chiberta, L’Arpège and Restaurant Alain Ducasse.
He moved to Ludlow, Shropshire, to become sous chef of Overton Grange in 1997. Bosi opened his own restaurant, Hibiscus, also in Ludlow, in 2000.
Hibiscus was put up for sale in July 2006, with Bosi intending to moving somewhere closer to London. Hibiscus closed in April 2007, and in the following June it was announced that the restaurant would relocate to London and open in September.
Bosi said of the move, "I"m transferring Hibiscus, not starting a new restaurant.
The idea is to continue and build on what I have been doing." Bosi was predicted to make an impact in food scene in the capital by other London-based chefs, including Philip Howard and Antonin Bonnet. Bosi sold the former Hibisicus site to Alan Murchison for £275,000 shortly after closing the Ludlow location. After moving the restaurant, Bosi lost his second Michelin star in 2008.
Because of the timing of the move, the Michelin inspectors only had two weeks to visit the restaurant before the Guide closed, and Bosi admitted that the restaurant wasn"t up to meeting the standards in those two weeks.
In 2009, Hibiscus placed second to The Fat Duck in United Kingdom National Restaurant of the Year Awards. By the time the 2009 Michelin Guide was about to be published, a number of chefs thought that Bosi should gain the star back again, including Jason Atherton, Tom Aikens, Richard Corrigan and Sat Bains.
The inspectors at the Michelin Guide agreed, and Hibiscus" second star was restored in the 2009 guidebook. The duo reopened it as a gastropub whilst retaining the original name.
The brothers had previously run a public together in Yarpole, Herefordshire, until 2010.
He appeared on British Broadcasting Corporation One"s Saturday Kitchen in March 2012. Later in the same year Bosi was one of a number of chefs to work at "The Cube", a popular up restaurant sat on top of London"s South Bank Centre. In November 2012 restaurant blogger James Isherwood awarded Bosi"s restaurant three out of five stars, reporting that the crab was extremely overcooked.
Bosi retorted on Twitter with "You"re a c*** and this is personal" which was branded by Luke Mackay as "shameful".