Full-Stack React Developer for SaaS Platform (Next.js / Supabase)

We are looking for an experienced Full-Stack React Developer to continue improving and expanding an existing SaaS platform. The application is built with React, Next.js, Supabase, and various third-party integrations. A significant portion of the original codebase was generated with AI tools, and we now need an experienced developer to improve code quality, optimize architecture, fix existing issues, and implement new functionality. Responsibilities: * Improve and refactor existing React and Next.js code * Fix bugs and performance issues * Enhance Supabase database structure and backend logic * Implement new features and workflows * Improve application architecture and maintainability * Integrate third-party APIs and services * Collaborate on product and technical decisions Ideal Candidate: * Strong experience with modern SaaS applications * Comfortable working with AI-generated codebases * Able to quickly understand existing systems and improve them * Focused on clean, scalable, and maintainable solutions This is a continuation of an existing project, and familiarity with React, Next.js, Supabase, and SaaS architectures is essential.