The technical expert in sustainability in the food chain is a professional who brings together all the knowledge and technical skills needed by small and medium-sized food production and processing companies to evolve processing techniques according to principles of sustainability and circular economy. He is an expert capable of analysing all production processes, being able to identify any criticalities and arranging corrective activities with the bodies and figures in charge of resolving such problems. He is familiar with the raw materials, production, storage, and processing phases of primary products and at the same time is an interpreter of the processes of innovation and sustainable transition of the food chain. He works towards a constant increase in consumer confidence levels in food certifications, also through the valorisation of local food and excellence, also in an international context.