Engineering reliable software & maintainable systems.

A fullstack platform connecting physical NFC gifts with personalized, secure digital spaces featuring real-time interaction, payment integration, and AI message generation.

• Engineered backend services with ASP.NET Core 10 Web API and Clean Architecture
• Implemented PostgreSQL persistence, Redis caching/rate limiting, and Hangfire background processing
• Integrated PayOS payment workflows, reCAPTCHA protection, and AWS/Cloudflare containerized deployment

A comprehensive productivity and personal finance platform managing learning roadmaps, GPA tracking, savings goals, multi-currency wallets, and AI-assisted task workflows.

• Architected RESTful Web APIs using ASP.NET Core 8 and Entity Framework Core with JWT/Google One-Tap auth
• Built a responsive, multilingual React/TypeScript frontend with Zustand and complex Zod form state validation
• Automated deployment across Vercel, Render, Neon PostgreSQL, and Cloudinary media storage with basic CI/CD

Enterprise backend modules developed and maintained for a 30-person project team delivering software to detailed Japanese client specifications.

• Implemented core business logic and backend services using .NET/C# and Java
• Conducted rigorous unit testing with MSTest and JUnit following UTC/UTR quality standards
• Collaborated within enterprise version control (Git, SVN) and structured sprint delivery cycles