Emilio F.

I build secure, high-performance backends for SaaS — from payment systems to AI-powered assistants — ready for production from day one. Trusted by founders in fintech, e-commerce, and AI startups. Over the past few years, I’ve delivered systems for payments, authentication, inventory, and AI assistants, always focusing on performance, maintainability, and a clean developer experience. Let’s turn your idea into a reliable, scalable product — so you can launch faster and grow without worrying about the backend. 🔹 Core Expertise - Custom APIs: Java (Spring Boot), Python (FastAPI), PHP (Laravel) - Secure Auth: JWT, OAuth2, RBAC - Business Systems: Admin panels, dashboards, automated workflows - Databases: PostgreSQL, MySQL (design, indexing, tuning) - Deployments: Docker, Railway, Vercel, SaaS-ready stacks 🔹 Recent Work – Smart Advisor App - AI-powered SaaS with secure login, OpenAI integration, and multilingual UI - Backend: FastAPI + PostgreSQL + OAuth2 - Frontend: Next.js + Chakra UI - Deployed on Railway + Vercel 🔹 Why clients hire me - Clean, maintainable code built for real-world use - Performance tuned from day one - Clear communication and proactive problem-solving If you need a backend partner who can move fast without compromising quality, let’s discuss your project.