Emilio Funes
Backend Developer @Upwork
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WORK HISTORY
Backend Developer @Upwork
Provincia de Buenos Aires, AR
Backend developer focused on building secure, scalable systems using Java (Spring Boot) and PHP (Laravel), with strong expertise in RESTful APIs, authentication, and modular architecture. Highlighted Projects:• Hospital Management System (2022): Java + MySQL with complex logic using triggers and stored procedures.• Product API (2022–2023): Spring Boot with Swagger, input validation, role-based auth, and admin panel.• Modular SaaS Platform (2024): Microservices architecture using React + Spring Boot + Docker with multi-role support.• Stripe Subscription System for SaaS (2025): Laravel + PostgreSQL, full integration with Stripe Checkout, webhook handling, billing panel, and auto-renewal logic.• Professional Portfolio Website (2025): Built with Next.js, Tailwind CSS, TypeScript, supporting i18n, dark mode, and responsive design. Tech Stack: Java · Spring Boot · PHP · Laravel · PostgreSQL · MySQL · Docker · Git · CI/CD · Next.js · TypeScript Also contributed to open source (Winter CMS, FastAPI Template) and continuously expanding knowledge in DevOps, testing, and backend architecture.
EDUCATION
Universidad Tecnológica Nacional
Técnico Universitario en Programación
Centro de e-Learning UTN FRBA
Coaching y Liderazgo Personal
ABOUT EMILIO FUNES
Backend Developer | Spring Boot · FastAPI · PostgreSQL · Stripe · SaaS & AI IntegrationI\'m a backend developer focused on building secure, scalable systems with real business impact. I specialize in Java Spring Boot and Python FastAPI, combining API design, authentication, and database architecture to create full-featured backend infrastructures — from idea to production. Latest Project: Smart Advisor AppAn AI-powered SaaS app built from scratch with full monetization flow:• Backend (FastAPI + PostgreSQL): Secure auth (OAuth2 + JWT), validations, deploy on Railway• Frontend (Next.js + Chakra UI): Clean UI, OpenAI-powered queries, multilingual UX• Stripe integration: Subscription plans, real payments, and usage trackingThis project reflects my ability to ship real-world apps, not just demos — combining backend logic, AI integration, and business-ready features.🧩 Tech StackJava · Spring Boot · FastAPI · PostgreSQL · StripeDocker · OAuth2 · JWT · React · CI/CD · Vercel · RailwayTesting: Jest · Cypress · Postman Open to roles where I can: Design secure, scalable APIs Build SaaS products with real users and revenue Work in remote teams with a clear vision and impact Let’s connect if you\'re looking for someone who not only writes clean backend code — but ships complete systems with purpose.
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