I have a production-level application that already runs on a React (HTML, CSS, JavaScript) front end with a Python FastAPI back end. After a year of iterative development—including a prior internship phase—I now need an experienced full-stack collaborator to help me take the project to its next stage. You will work directly in the current codebase, pairing with me to: • Refactor and extend React components while maintaining a clean, responsive UI • Expand and fine-tune FastAPI endpoints, ensuring secure, efficient data flow • Identify and resolve bugs or bottlenecks uncovered during daily use • Write concise unit and integration tests so new work ships with confidence • Review pull requests and suggest architectural improvements The stack is already containerised and version-controlled (Git). Familiarity with typical DevOps conveniences—CI pipelines, automated testing, and deployment to popular cloud providers—will speed us up, though we can refine that together. I value clean, well-documented code, transparent communication, and iterative delivery. If you can jump into an existing React/FastAPI project, quickly understand context, and drive meaningful improvements, let’s talk.