The aim of this contract is to contribute to a project that models several pathways for a sustainable transition of food systems in three African countries (Senegal, Kenya and Mozambique), supporting the European Commission's Green Agriculture agenda. The contractor will be responsible for fine-tuning scenarios for sustainable transition of food systems, supporting the development of models for agroecological transition at both country and farm levels (including development of local modelers capacity), engaging stakeholders, disseminating and communicating project results, as well as providing management and coordination services. The stakeholder engagement will involve local organizations, including civil society, researchers, and policy makers, as well as regional organizations in Africa, to ensure a comprehensive and inclusive approach. A key dimension of the project is to engage with policy makers from the outset, to ensure a good understanding and uptake of the project's lessons and recommendations, and to facilitate the integration of the project's findings into policy decisions. This contract is necessary to support the project's objectives, which require specialized expertise and services to model sustainable food systems transitions, engage with stakeholders, and effectively manage and coordinate the project's activities, ultimately contributing to the Commission's goal of promoting sustainable agriculture and food systems in Africa.