Senior PHP/React Developer (Remote) – 8‑person team, 4 front‑end, 4 back‑end. Focus on PHP/Symfony and React/TypeScript to enhance document dematerialisation solutions for B2B/B2C. Responsibilities include application development, database management (MariaDB/PostgreSQL, MongoDB), asynchronous system design, legacy reverse engineering, migration, documentation, and technical debt reduction. Requires strong PHP/Symfony skills, React/TypeScript knowledge, and familiarity with Node.js, RabbitMQ, SQL/NoSQL databases. French language proficiency mandatory.