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Full Stack Developer

Q-AR

Inventory control · web panel and Firebase

Built an enterprise inventory management system that replaced manual tracking with QR code scanning. The mobile app (Unity) lets operators scan items to instantly access and update records, while the web dashboard (HTML/CSS/JS) handles item registration and reporting, with Firebase syncing data between both in real time.

  • Firebase
  • Node.js
  • JavaScript
  • HTML5
  • CSS3
Q-AR
QR
Instant lookup and updates
Firebase
Real-time synchronization
Web
Registration and reports panel
01

The story

01.1

Problem

Inventory was tracked by hand: slow audits and constant data-entry errors in the records.

01.2

Solution

I built a system with a Unity mobile app that scans QR codes to look up and update records instantly, a web panel for registration and reports, and Firebase for auth, data, and real-time sync.

01.3

Result

Every item is looked up and updated by scanning its QR code from the app, with no manual entry, and Firebase syncs the record in real time between the app and the web panel.

02

What I built

  1. 02.1Backend Developer

    Firebase Functions

    I developed Firebase functions to enhance inventory management. These functions facilitate user authentication, data storage, and QR code generation, ensuring real-time synchronization of information.

  2. 02.2Frontend Developer

    Web Application

    I developed an efficient web page for inventory management, which allows users to record detailed information about items and generate QR codes.

The code for this project belongs to the client and cannot be published. What I can show is on this page: the problem, the solution I built, my specific role and screenshots of the product. If what you want is to read my code, that's exactly why I built Ghostline: a complete, playable game with both the C# client repo and the TypeScript API repo open —the same technical judgment I applied here, this time auditable commit by commit.

03

Gallery

QR Inventory Flow
QR Inventory FlowSystem diagram: the Unity app scans QR codes, Firebase syncs data in real time, and the web panel registers items and generates their codes.
Mobile Scanning App
Mobile Scanning AppAn item's record in the Unity app after scanning its QR code: person in charge, serial number, and graphics card, ready to review or update.
Registration Web Panel
Registration Web PanelItem registration from the web panel: full equipment record and QR code generation ready to print and label.
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