SignatureIntro is a full-stack digital profile and smart contact-sharing platform built to modernize professional networking. The application allows users to create secure accounts, build customizable profiles, and share them instantly via NFC cards or direct links. When an NFC card is scanned, the system dynamically displays a clean, mobile-optimized profile view for seamless interaction.
The platform supports VCF contact saving, lead collection, and email signature generation, enabling professionals and businesses to convert profile views into meaningful connections. Advanced analytics provide insights into profile visits, interactions, and engagement, helping users measure networking effectiveness.
Built using Next.js and React.js for a fast, SEO-friendly frontend and Fastify with Node.js on the backend, the system is designed for high performance and scalability. Prisma ORM and MySQL ensure reliable data handling, while Google OAuth provides secure and frictionless authentication.
This project was fully designed, developed, and deployed end-to-end by me, covering architecture, UI/UX, backend logic, authentication, database design, NFC integration, and analytics.
🔹 Key Features
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User authentication with Google OAuth
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Customizable digital profile creation
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NFC-enabled profile sharing
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Mobile-optimized profile view on scan
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VCF contact save functionality
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Lead collection and contact management
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Email signature generator
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Advanced analytics and interaction tracking
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Secure and scalable backend
