Summary: Seeking a Senior Full-Stack Software Engineer to modernize a platform, migrating a legacy PHP/Yii application to Node.js and React, focusing on refactoring, new services, and integrations. Highlights: 1. Lead platform modernization with Node.js and React 2. Migrate legacy PHP/Yii application 3. Develop backend services and frontend components Client: Our client is a company that provides a platform for conducting remote qualitative research. The company offers tools that help businesses gather insights through moderated conversations, video interviews and real time feedback features. * Position overview: We are looking for a Senior Full\-Stack Software Engineer to join a team working on a platform modernization project. The main focus of the role is to support the migration of a legacy application built with PHP/Yii to a modern stack based on Node.js and React. * The engineer will work closely with the team to refactor existing functionality, implement new services, and contribute to building integrations with external platforms. Technology stack: Node.js, React, MySQL, PostgreSQL, REST API, PHP, Yii, Git, CI and CD tools * Responsibilities: Participate in the migration of a legacy PHP and Yii application to Node.js and React * Analyze legacy code and translate business logic into modern services * Develop backend services with Node.js * Implement frontend components using React * Contribute to building and maintaining platform integrations * Work with MySQL and PostgreSQL databases * Collaborate with engineering, QA and product teams * Write clean, maintainable and testable code * Requirements: Proven experience working with Node.js * Experience developing interfaces with React * Experience with SQL databases such as MySQL or PostgreSQL * Understanding of REST APIs * Experience working with AI assisted development tools such as Cursor or similar * Nice to have: Experience with PHP * Experience with the Yii 1 framework * Experience participating in migration projects * Experience with modern development workflows such as Git and CI and CD tools