Senior PHP & React Developer needed for a remote freelance role in Casablanca, Morocco. The position focuses on enhancing a B2B/B2C document dematerialization platform built with PHP (Symfony) and React (TypeScript). Responsibilities include developing new features, maintaining databases (MariaDB, PostgreSQL, MongoDB), designing asynchronous workflows, and performing reverse engineering on legacy systems. Candidates must be proficient in PHP, Symfony, React, TypeScript, and have experience with RabbitMQ, Git, and database design. French language proficiency is required. The role offers flexible hours, remote work, and collaboration with a small, dynamic team.