Jett is the global lead on all cultural infrastructure projects for Sound Diplomacy. With a portfolio encompassing the comprehensive design, evaluation, and feasibility of diverse projects, he specialises in music venues, arenas, cultural hubs, and placemaking cultural districts. His focus extends to business planning and cultural policy, with a particular emphasis on strategy for new multi-use venues, creative studios, festivals, and events. In his role at Sound Diplomacy, Jett has successfully spearheaded cultural infrastructure projects in major global hubs, including London, Manchester, Sydney, Singapore, and cities across the United States. Noteworthy achievements include leading the delivery of the cultural strategy for the Earl's Court Development Company Masterplan in London and serving as an executive consultant for the new Arts Venue at The Andy Warhol Museum in Pittsburgh.