Balbino P.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Sep 24, 2026.

🚀 Full Stack Developer specializing in Laravel, Flutter, Next.js, and .NET. I help startups and businesses build secure, scalable web and mobile applications—from backend architecture and REST APIs to responsive frontends and cross-platform mobile apps. What I can help with: ✅ Full Stack Web Development ✅ Flutter Mobile Applications ✅ Laravel & PHP Backend Development ✅ Next.js & React Development ✅ REST API & Third-Party Integrations ✅ OAuth Authentication & Authorization ✅ MySQL & SQL Server Database Design ✅ Redis Caching & Performance Optimization ✅ Jest Unit & Integration Testing ✅ IIS & Linux Deployment ✅ SaaS Architecture & Backend Systems Recent experience: ✅ Custom FlutterFlow BLE integrations for OBD-II devices ✅ Secure Laravel backend systems and REST APIs ✅ Cross-platform Flutter applications ✅ Database architecture and backend optimization ✅ OAuth authentication and third-party API integrations ✅ Payment gateway integration ✅ Production troubleshooting and deployment Tech Stack: Laravel • Flutter • Next.js • React • ASP.NET • C# • PHP • Node.js • Express.js • JavaScript • TypeScript • MySQL • SQL Server • Redis • OAuth • Jest • Git • REST APIs • IIS I deliver clean, maintainable, production-ready solutions with clear communication and a focus on long-term reliability. Let's build your next application.