NFC Asset Tracking System

build an end-to-end NFC-Based Spare Parts & Asset Tracking System. The solution consists of a Cross-Platform Mobile App (Android/iOS) for field and warehouse operations, and a Web-Based Management Dashboard for real-time inventory and device tracking.

The primary goal of the system is to track high-value spare parts from the warehouse to field technicians, monitor their installation on specific medical/technical equipment, and trace any returns back to the warehouse.

System Architecture & Tech Stack Expectations
Mobile App: Flutter or React Native (Must support native NFC scanning on both Android and iOS).

Backend: Node.js (Express/NestJS), Python (FastAPI), or C# (.NET Core) with RESTful APIs.

Database: PostgreSQL or MySQL (Relational database structure with robust state-machine tracking).

Web Dashboard: React.js, Vue.js, or Next.js.

Core Workflows & Key Features
1. Warehouse Dispatch (Warehouse Staff)
Scan NFC tag on a spare part box using the mobile app.

Retrieve part details automatically via API.

Select the target Field Technician and target Medical Device/Equipment from dropdowns/search.

Update status to DISPATCHED.

2. Field Receipt & Installation (Field Technician)
Field technician receives the physical part and scans the NFC tag.

Confirms receipt → Status updates to RECEIVED_IN_FIELD.

Options to either:

Mount to Device: Tag assigned to the equipment → Status updates to INSTALLED_ON_DEVICE.

Return to Warehouse: Initiate return process → Status updates to RETURN_IN_TRANSIT.

3. Web Management Dashboard (Admins & Managers)
Live Inventory Tracking: Real-time status of all parts (In Warehouse, In Transit, Installed on Device, Returned).

Equipment-Centric View: Search a specific medical device/serial number to see all spare parts currently installed or historically replaced on it.

User & Asset Management: CRUD operations for Parts, Devices, Technicians, and Warehouses.

Audit Trail & Reports: Detailed transaction log (Who scanned what, when, and where). Export functionality (PDF / Excel).

NFC & Hardware Requirements
The mobile app must read standard NTAG213 / NTAG215 NFC chips .

NFC tags will hold a unique Hardware UID or encoded UUID (e.g., PRC-847291), which maps to the backend database record.

Key Deliverables
Source Code: Fully documented and clean repository (GitHub / GitLab).

Mobile App Builds: Working APK (Android) and TestFlight / IPA (iOS).

Web Dashboard: Deployed web admin portal.

API Documentation: OpenAPI / Postman collection for all endpoints.

Database Schema: Well-documented SQL migration scripts.

Developer Requirements / Qualifications
Proven experience with NFC integration in mobile apps (Flutter nfc_manager or React Native NFC libraries).

Strong background in building inventory management or asset tracking solutions.

Ability to design clean UI/UX for both mobile and web interfaces.

Clear communication and regular progress updates.

How to Apply
Please reply with:

Examples of previous NFC, RFID, or Asset/Inventory Tracking projects you have built.

Recommended technology stack for this project and why.

Estimated timeline and budget breakdown (Milestones).