Senior Full-Stack Developer Needed for SaaS Web Application (Python FastAPI + React/Next.js)

We are looking for an experienced Full-Stack Developer to help us build and improve a production web application. The ideal candidate should be comfortable working across the complete stack — from backend APIs and database design to frontend interfaces and deployment. This project requires someone who can understand business requirements, make technical decisions, and deliver reliable features without needing heavy supervision. Responsibilities Build and improve backend services using Python and FastAPI Develop REST APIs and integrate third-party services Create responsive frontend interfaces using React.js or Next.js Build dashboards, admin panels, and data-driven workflows Design database models and optimize queries Implement authentication, permissions, and user management Debug existing features and improve application performance Deploy and maintain applications in a production environment Requirements 5+ years of full-stack web development experience Strong experience with Python backend development Hands-on experience with FastAPI, Flask, or Django Strong React.js or Next.js experience Experience building SaaS applications or business platforms Good understanding of PostgreSQL and REST APIs Experience with cloud deployment and Docker Ability to work independently and communicate clearly Nice to Have Experience building workflow automation systems Experience with AI-powered applications or API integrations Experience improving existing production applications Experience with AWS or similar cloud platforms Project Goal The goal is to deliver a stable, scalable web application with clean architecture and production-ready features. We are looking for someone who can become a reliable technical partner and help us continue improving the product after the initial milestone.