Muhammad Puntodewo Fadhillah

I am a Backend Software Engineer with 5+ years of experience building scalable, production-ready systems using .NET Core, SQL, and modern web technologies. I specialize in designing and developing API-driven SaaS platforms, system integrations, and real-time data processing solutions.

My expertise includes building secure and efficient backend architectures, integrating third-party services (OAuth2, REST APIs, webhooks), and handling complex data workflows such as synchronization, automation, and business process optimization. I have hands-on experience working across industries including banking, pharmacy, and transportation, delivering reliable and high-performance systems.

I also leverage AI tools like ChatGPT and GitHub Copilot to accelerate development while maintaining code quality, proper testing, and clean architecture principles. Recently, I’ve been focusing on building AI-native applications, including workflow automation, intelligent data processing, and agent-based integrations.

I can help you with:

Backend development using .NET Core (C#)
API design, development, and integration
Third-party integrations (OAuth2, webhooks, external APIs)
Database design and optimization (SQL Server, MySQL)
Real-time features and background processing
System design and scalable architecture
Debugging, performance tuning, and production support

I support clients from idea to deployment, ensuring scalable, maintainable, and business-focused solutions.