Haoran T.

I build complete software solutions, from modern applications and backend APIs to IoT devices and hardware integrations. As a full-stack developer with experience across software and embedded systems, I can handle both the application layer and the underlying technology that powers it. Whether you’re building an MVP, improving an existing application, or developing a connected product, I focus on delivering practical, reliable, and maintainable solutions. ━━━━━━━━━━━━━━━━━━━━ 🚀 WHAT I CAN HELP YOU BUILD ━━━━━━━━━━━━━━━━━━━━ ▸ FULL STACK & BACKEND DEVELOPMENT • RESTful APIs and backend services • ASP.NET Core / .NET / C# • Node.js / TypeScript • PostgreSQL, Supabase, Firebase, Redis • Authentication and third-party integrations • Admin dashboards and internal business systems ▸ MOBILE & CROSS-PLATFORM APPLICATIONS • Flutter apps for iOS, Android, desktop, and web • Responsive and intuitive user interfaces • Real-time data synchronization • Offline-first applications • API and hardware integration ▸ IoT & EMBEDDED SYSTEMS • ESP32, STM32, and nRF52 firmware development • C/C++ and FreeRTOS • BLE, Wi-Fi, MQTT, and LoRaWAN • Sensor integration and device communication • UART, SPI, I2C, and serial protocols • Hardware-to-cloud connectivity ▸ KIOSK & INDUSTRIAL SOLUTIONS • Self-service kiosks and tablet applications • Customer feedback and monitoring systems • Industrial IoT dashboards • Device control and management interfaces • Custom software for specialized hardware ━━━━━━━━━━━━━━━━━━━━ 💡 WHY WORK WITH ME? ━━━━━━━━━━━━━━━━━━━━ ✓ END-TO-END DEVELOPMENT I understand how frontend applications, backend services, and embedded devices work together. You don’t need multiple developers just to connect different parts of your system. ✓ PRACTICAL ENGINEERING I focus on solutions that work in real-world environments, not just demos. From debugging communication protocols to designing reliable backend architectures, I pay attention to the details that matter. ✓ CLEAR COMMUNICATION I value straightforward communication, realistic timelines, and regular progress updates. You’ll know what’s being developed and why. ✓ MAINTAINABLE CODE I build with long-term maintainability in mind, using clean architecture and technologies appropriate for each project. ━━━━━━━━━━━━━━━━━━━━ 🤝 LET’S BUILD SOMETHING THAT WORKS ━━━━━━━━━━━━━━━━━━━━ I work with startups, businesses, and individuals on everything from small fixes and prototypes to complete applications and connected systems. If you need a developer who can understand the bigger picture and turn technical requirements into a working product, I’d be happy to help.