This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Desenvolvedor Fullstack PHP Pleno based in Brazil. This is a fully remote opportunity for a mid-level Fullstack Developer to work within an agile, collaborative squad focused on building reliable technology. You will contribute across both backend and frontend, working primarily with PHP and React. The role combines maintenance of a mature legacy platform with the development of new features and business-driven improvements. You will investigate complex issues, improve system performance, and integrate applications with APIs, databases, and external services. Quality, clean development practices, documentation, and continuous improvement are central to the role. You’ll work closely with Product, QA, and fellow developers in an environment that values creativity, autonomy, collaboration, and work-life balance.