Gabriel S.

I build web applications, billing systems and network solutions with real world deployment experience. My flagship project is SunCore Networks, a complete WiFi hotspot billing platform with captive portal, MikroTik RouterOS integration, real time payment processing and live VPS deployment. Built from scratch. Running in production. I value clean code, reliable systems and long term client relationships over quick fixes. Whatever you need built, I will deliver it working and on time. Here are my tech stacks: -Frontend: HTML5, CSS3, JavaScript, Responsive Design -Backend: Node.js, Express.js, REST APIs -Network: MikroTik RouterOS, Captive Portal, Hotspot Gateway -Payment: Payment Gateway APIs, Mobile Money Integration, STK Push -Infrastructure: Nginx, Ubuntu Linux, VPS Deployment, PM2, SSL -AI Integration: OpenAI API, Claude API, Chatbots, Automated Workflows -Database: MySQL I specialize in ISP and WiFi billing systems, payment integrated web apps and custom business software. Looking forward to building something great with you.