Engineered Footer for Large Shed Foundation

I need a structural engineer to design an engineered footer for a concrete pad that will serve as the foundation for a large shed. The shed will be over 251 sq ft and is intended for a residential purpose. Ideal Skills and Experience: - Civil engineering with a focus on structural design - Experience with designing foundations for large structures - Knowledge of concrete engineering - Previous work with shed foundations a plus - Ability to provide detailed, clear engineering plans - Knowledge of local building codes and regulations for foundation construction The site has sandy soil conditions. ASAP