We are looking for a Senior Software Engineer (React + Node.js) to join our team. Responsibilities: Working with legacy code. Developing new features. Helping and possibly even providing some feedback and work on optimizing. Requirements: Strong experience with React and modern JavaScript (ES6+). Proficiency in SCSS/SASS and CSS architecture for large-scale apps. Familiarity with micro frontend patterns and module federation. Experience with Node.js scripting and build tooling (Webpack, npm/yarn). Solid understanding of automated testing (Jest) and linting (ESLint, Prettier). Ability to work with legacy code and gradually modernize it. Experience with service workers and web performance optimization. Familiarity with CI/CD pipelines and DevOps basics.