FastAPI Backend Production Upgrade -- 3

@GobindSawarn

As an experienced Python developer with a proven track record of building reliable, scalable software, I am confident that I can deliver the fast yet reliable upgrade that your backend needs. With your detailed tech brief, we can hit the ground running, iterating through short, reviewable PRs until we achieve a widely-improved system that you crave. Importantly, my expertise in using MySQL and PostgreSQL aligns well with the migrate refactoring steps you desire. This, coupled with my familiarity in implementing rate limiting and secure file validation practices (essential for hardening your API), will ensure that not only your files are readily accessed across devices via the six-digit PIN but also done efficiently and securely in a production-ready environment. Additionally, I can't overemphasize enough the value I place on clear communication and delivering exactly what was agreed upon. To this end, you can expect not only clean code and a future-ready architecture but also comprehensive documentation that empowers any other engineer to spin up your service effortlessly with just a single command. With a focus on long-term maintainability and ensuring the project's success doesn't lay squarely on my shoulders alone

@approzo

My development career has given me the opportunity to wear many hats and work with a vast range of technologies — including but not limited to Python. I understand the challenges that come with scaling a proof-of-concept system into a robust, production-ready application. Using my background in clean coding, secure file management, and strong back-end architecture design, I can help migrate your API from a mere concept into the fully-functional product it needs to be. I have extensive experience working with tools such as Docker, SQLAlchemy, Redis and S3 which you require for this upgrade. These tools are instrumental in building robust systems capable of handling multiple requests concurrently while ensuring fast file look-ups and preventive mechanisms such as rate limiting. Manoj